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compare: avr:fe9e67036e4acfb539499d0fa31afbc9ef99315d
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avr:master avr:example

12 Commits
925bb56f98 ... fe9e67036e

Author SHA1 Message Date
BlackMark
fe9e67036e Implemented stream operator for some basic types 2019-08-03 16:17:07 +02:00
BlackMark
9f7dc0da55 Added alias for driver dependent data size 2019-08-03 16:13:52 +02:00
BlackMark
2a07744575 Added static_assert for transmitting numbers 2019-08-03 16:11:21 +02:00
BlackMark
ecdefe40e7 Implemented integral type checking 2019-08-03 16:10:19 +02:00
BlackMark
53b791cb05 Implemented printing of numbers 2019-08-03 15:00:41 +02:00
BlackMark
50e01c480d Implemented templated numeric limits 2019-08-03 14:54:23 +02:00
BlackMark
7d4eddbd8b Changed interface to not initialize uart on construction 2019-08-03 11:14:01 +02:00
BlackMark
778f5f9754 Moved always_false template to utils 2019-08-03 10:58:32 +02:00
BlackMark
1ca8ea2061 Removed Peter Fleury's c uart library 2019-08-03 10:47:32 +02:00
BlackMark
80633998c7 Removed legacy usart library 2019-08-03 10:23:53 +02:00
BlackMark
2cd4069654 Moved interrupt vectors to their own translation unit to solve redefinition error 2019-08-02 20:29:04 +02:00
BlackMark
33c3cedb1e Fixed missing headers 2019-08-02 20:23:54 +02:00
13 changed files with 375 additions and 1898 deletions
Expand all files Collapse all files

2
config.hpp
View File

@@ -1,5 +1,7 @@
#pragma once
#include <stdint.h>
namespace uart {
enum class DataBits {

4
hardware.hpp
View File

@@ -1,5 +1,9 @@
#pragma once
#include "../clock.h"
#include <stdint.h>
#define FORCE_INLINE __attribute__((always_inline))
namespace uart {

30
hardware0.cpp Normal file
View File

@@ -0,0 +1,30 @@
#include "hardware0.hpp"
#include <avr/interrupt.h>
namespace uart {
namespace detail {
#if defined(__AVR_ATmega1284P__)
void (*fnRx0IntHandler)() = nullptr;
void (*fnDataReg0EmptyIntHandler)() = nullptr;
ISR(USART0_RX_vect)
{
if (fnRx0IntHandler)
fnRx0IntHandler();
}
ISR(USART0_UDRE_vect)
{
if (fnDataReg0EmptyIntHandler)
fnDataReg0EmptyIntHandler();
}
#else
#error "This chip is not supported"
#endif
} // namespace detail
} // namespace uart

20
hardware0.hpp
View File

@@ -1,5 +1,9 @@
#pragma once
#include <stdint.h>
#include <avr/io.h>
#include "config.hpp"
#include "hardware.hpp"
@@ -59,20 +63,8 @@ constexpr int operator<<(const int &lhs, const ControlFlagsB0 &rhs) { return lhs
constexpr int operator<<(const int &lhs, const ControlFlagsC0 &rhs) { return lhs << static_cast<int>(rhs); }
// clang-format on
static void (*fnRx0IntHandler)() = nullptr;
static void (*fnDataReg0EmptyIntHandler)() = nullptr;
ISR(USART0_RX_vect)
{
if (fnRx0IntHandler)
fnRx0IntHandler();
}
ISR(USART0_UDRE_vect)
{
if (fnDataReg0EmptyIntHandler)
fnDataReg0EmptyIntHandler();
}
extern void (*fnRx0IntHandler)();
extern void (*fnDataReg0EmptyIntHandler)();
#else
#error "This chip is not supported"

30
hardware1.cpp Normal file
View File

@@ -0,0 +1,30 @@
#include "hardware1.hpp"
#include <avr/interrupt.h>
namespace uart {
namespace detail {
#if defined(__AVR_ATmega1284P__)
void (*fnRx1IntHandler)() = nullptr;
void (*fnDataReg1EmptyIntHandler)() = nullptr;
ISR(USART1_RX_vect)
{
if (fnRx1IntHandler)
fnRx1IntHandler();
}
ISR(USART1_UDRE_vect)
{
if (fnDataReg1EmptyIntHandler)
fnDataReg1EmptyIntHandler();
}
#else
#error "This chip is not supported"
#endif
} // namespace detail
} // namespace uart

20
hardware1.hpp
View File

@@ -1,5 +1,9 @@
#pragma once
#include <stdint.h>
#include <avr/io.h>
#include "config.hpp"
#include "hardware.hpp"
@@ -59,20 +63,8 @@ constexpr int operator<<(const int &lhs, const ControlFlagsB1 &rhs) { return lhs
constexpr int operator<<(const int &lhs, const ControlFlagsC1 &rhs) { return lhs << static_cast<int>(rhs); }
// clang-format on
static void (*fnRx1IntHandler)() = nullptr;
static void (*fnDataReg1EmptyIntHandler)() = nullptr;
ISR(USART1_RX_vect)
{
if (fnRx1IntHandler)
fnRx1IntHandler();
}
ISR(USART1_UDRE_vect)
{
if (fnDataReg1EmptyIntHandler)
fnDataReg1EmptyIntHandler();
}
extern void (*fnRx1IntHandler)();
extern void (*fnDataReg1EmptyIntHandler)();
#define HAS_UART1

3
software.hpp
View File

@@ -1,6 +1,7 @@
#pragma once
#include "config.hpp"
#include "utils.hpp"
#include "../io/io.hpp"
@@ -8,6 +9,8 @@ namespace uart {
template <io::P rxPin, io::P txPin, class cfg = Config<>>
class Software {
static_assert(util::always_false_v<cfg>, "Not implemented");
public:
using data_t = typename cfg::data_t;
static constexpr auto DATA_BITS = cfg::DATA_BITS;

754
uart.cpp
View File

@@ -1,754 +0,0 @@
/*************************************************************************
Title: Interrupt UART library with receive/transmit circular buffers
Author: Peter Fleury <pfleury@gmx.ch> http://tinyurl.com/peterfleury
File: $Id: uart.c,v 1.15.2.4 2015/09/05 18:33:32 peter Exp $
Software: AVR-GCC 4.x
Hardware: any AVR with built-in UART,
License: GNU General Public License
DESCRIPTION:
An interrupt is generated when the UART has finished transmitting or
receiving a byte. The interrupt handling routines use circular buffers
for buffering received and transmitted data.
The UART_RX_BUFFER_SIZE and UART_TX_BUFFER_SIZE variables define
the buffer size in bytes. Note that these variables must be a
power of 2.
USAGE:
Refere to the header file uart.h for a description of the routines.
See also example test_uart.c.
NOTES:
Based on Atmel Application Note AVR306
LICENSE:
Copyright (C) 2015 Peter Fleury, GNU General Public License Version 3
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
*************************************************************************/
#include "uart.h"
#include <avr/interrupt.h>
#include <avr/io.h>
#include <avr/pgmspace.h>
/*
* constants and macros
*/
/* size of RX/TX buffers */
#define UART_RX_BUFFER_MASK (UART_RX_BUFFER_SIZE - 1)
#define UART_TX_BUFFER_MASK (UART_TX_BUFFER_SIZE - 1)
#if (UART_RX_BUFFER_SIZE & UART_RX_BUFFER_MASK)
#error RX buffer size is not a power of 2
#endif
#if (UART_TX_BUFFER_SIZE & UART_TX_BUFFER_MASK)
#error TX buffer size is not a power of 2
#endif
#if defined(__AVR_AT90S2313__) || defined(__AVR_AT90S4414__) || defined(__AVR_AT90S8515__) || \
defined(__AVR_AT90S4434__) || defined(__AVR_AT90S8535__) || defined(__AVR_ATmega103__)
/* old AVR classic or ATmega103 with one UART */
#define UART0_RECEIVE_INTERRUPT UART_RX_vect
#define UART0_TRANSMIT_INTERRUPT UART_UDRE_vect
#define UART0_STATUS USR
#define UART0_CONTROL UCR
#define UART0_DATA UDR
#define UART0_UDRIE UDRIE
#define UART0_UBRRL UBRR
#define UART0_BIT_U2X U2X
#define UART0_BIT_RXCIE RXCIE
#define UART0_BIT_RXEN RXEN
#define UART0_BIT_TXEN TXEN
#elif defined(__AVR_AT90S2333__) || defined(__AVR_AT90S4433__)
/* old AVR classic with one UART */
#define UART0_RECEIVE_INTERRUPT UART_RX_vect
#define UART0_TRANSMIT_INTERRUPT UART_UDRE_vect
#define UART0_STATUS UCSRA
#define UART0_CONTROL UCSRB
#define UART0_DATA UDR
#define UART0_UDRIE UDRIE
#define UART0_UBRRL UBRR
#define UART0_BIT_U2X U2X
#define UART0_BIT_RXCIE RXCIE
#define UART0_BIT_RXEN RXEN
#define UART0_BIT_TXEN TXEN
#elif defined(__AVR_AT90PWM216__) || defined(__AVR_AT90PWM316__)
/* AT90PWN216/316 with one USART */
#define UART0_RECEIVE_INTERRUPT USART_RX_vect
#define UART0_TRANSMIT_INTERRUPT USART_UDRE_vect
#define UART0_STATUS UCSRA
#define UART0_CONTROL UCSRB
#define UART0_CONTROLC UCSRC
#define UART0_DATA UDR
#define UART0_UDRIE UDRIE
#define UART0_UBRRL UBRRL
#define UART0_UBRRH UBRRH
#define UART0_BIT_U2X U2X
#define UART0_BIT_RXCIE RXCIE
#define UART0_BIT_RXEN RXEN
#define UART0_BIT_TXEN TXEN
#define UART0_BIT_UCSZ0 UCSZ0
#define UART0_BIT_UCSZ1 UCSZ1
#elif defined(__AVR_ATmega8__) || defined(__AVR_ATmega8A__) || defined(__AVR_ATmega16__) || \
defined(__AVR_ATmega16A__) || defined(__AVR_ATmega32__) || defined(__AVR_ATmega32A__) || \
defined(__AVR_ATmega323__)
/* ATmega with one USART */
#define UART0_RECEIVE_INTERRUPT USART_RXC_vect
#define UART0_TRANSMIT_INTERRUPT USART_UDRE_vect
#define UART0_STATUS UCSRA
#define UART0_CONTROL UCSRB
#define UART0_CONTROLC UCSRC
#define UART0_DATA UDR
#define UART0_UDRIE UDRIE
#define UART0_UBRRL UBRRL
#define UART0_UBRRH UBRRH
#define UART0_BIT_U2X U2X
#define UART0_BIT_RXCIE RXCIE
#define UART0_BIT_RXEN RXEN
#define UART0_BIT_TXEN TXEN
#define UART0_BIT_UCSZ0 UCSZ0
#define UART0_BIT_UCSZ1 UCSZ1
#define UART0_BIT_URSEL URSEL
#elif defined(__AVR_ATmega8515__) || defined(__AVR_ATmega8535__)
#define UART0_RECEIVE_INTERRUPT USART_RX_vect
#define UART0_TRANSMIT_INTERRUPT USART_UDRE_vect
#define UART0_STATUS UCSRA
#define UART0_CONTROL UCSRB
#define UART0_CONTROLC UCSRC
#define UART0_DATA UDR
#define UART0_UDRIE UDRIE
#define UART0_UBRRL UBRRL
#define UART0_UBRRH UBRRH
#define UART0_BIT_U2X U2X
#define UART0_BIT_RXCIE RXCIE
#define UART0_BIT_RXEN RXEN
#define UART0_BIT_TXEN TXEN
#define UART0_BIT_UCSZ0 UCSZ0
#define UART0_BIT_UCSZ1 UCSZ1
#define UART0_BIT_URSEL URSEL
#elif defined(__AVR_ATmega163__)
/* ATmega163 with one UART */
#define UART0_RECEIVE_INTERRUPT UART_RX_vect
#define UART0_TRANSMIT_INTERRUPT UART_UDRE_vect
#define UART0_STATUS UCSRA
#define UART0_CONTROL UCSRB
#define UART0_DATA UDR
#define UART0_UDRIE UDRIE
#define UART0_UBRRL UBRR
#define UART0_UBRRH UBRRHI
#define UART0_BIT_U2X U2X
#define UART0_BIT_RXCIE RXCIE
#define UART0_BIT_RXEN RXEN
#define UART0_BIT_TXEN TXEN
#elif defined(__AVR_ATmega162__)
/* ATmega with two USART */
#define ATMEGA_USART1
#define UART0_RECEIVE_INTERRUPT USART0_RXC_vect
#define UART1_RECEIVE_INTERRUPT USART1_RXC_vect
#define UART0_TRANSMIT_INTERRUPT USART0_UDRE_vect
#define UART1_TRANSMIT_INTERRUPT USART1_UDRE_vect
#define UART0_STATUS UCSR0A
#define UART0_CONTROL UCSR0B
#define UART0_CONTROLC UCSR0C
#define UART0_DATA UDR0
#define UART0_UDRIE UDRIE0
#define UART0_UBRRL UBRR0L
#define UART0_UBRRH UBRR0H
#define UART0_BIT_URSEL URSEL0
#define UART0_BIT_U2X U2X0
#define UART0_BIT_RXCIE RXCIE0
#define UART0_BIT_RXEN RXEN0
#define UART0_BIT_TXEN TXEN0
#define UART0_BIT_UCSZ0 UCSZ00
#define UART0_BIT_UCSZ1 UCSZ01
#define UART1_STATUS UCSR1A
#define UART1_CONTROL UCSR1B
#define UART1_CONTROLC UCSR1C
#define UART1_DATA UDR1
#define UART1_UDRIE UDRIE1
#define UART1_UBRRL UBRR1L
#define UART1_UBRRH UBRR1H
#define UART1_BIT_URSEL URSEL1
#define UART1_BIT_U2X U2X1
#define UART1_BIT_RXCIE RXCIE1
#define UART1_BIT_RXEN RXEN1
#define UART1_BIT_TXEN TXEN1
#define UART1_BIT_UCSZ0 UCSZ10
#define UART1_BIT_UCSZ1 UCSZ11
#elif defined(__AVR_ATmega161__)
/* ATmega with UART */
#error "AVR ATmega161 currently not supported by this libaray !"
#elif defined(__AVR_ATmega169__)
/* ATmega with one USART */
#define UART0_RECEIVE_INTERRUPT USART0_RX_vect
#define UART0_TRANSMIT_INTERRUPT USART0_UDRE_vect
#define UART0_STATUS UCSRA
#define UART0_CONTROL UCSRB
#define UART0_CONTROLC UCSRC
#define UART0_DATA UDR
#define UART0_UDRIE UDRIE
#define UART0_UBRRL UBRRL
#define UART0_UBRRH UBRRH
#define UART0_BIT_U2X U2X
#define UART0_BIT_RXCIE RXCIE
#define UART0_BIT_RXEN RXEN
#define UART0_BIT_TXEN TXEN
#define UART0_BIT_UCSZ0 UCSZ0
#define UART0_BIT_UCSZ1 UCSZ1
#elif defined(__AVR_ATmega48__) || defined(__AVR_ATmega48A__) || defined(__AVR_ATmega48P__) || \
defined(__AVR_ATmega48PA__) || defined(__AVR_ATmega48PB__) || defined(__AVR_ATmega88__) || \
defined(__AVR_ATmega88A__) || defined(__AVR_ATmega88P__) || defined(__AVR_ATmega88PA__) || \
defined(__AVR_ATmega88PB__) || defined(__AVR_ATmega168__) || defined(__AVR_ATmega168A__) || \
defined(__AVR_ATmega168P__) || defined(__AVR_ATmega168PA__) || defined(__AVR_ATmega168PB__) || \
defined(__AVR_ATmega328__) || defined(__AVR_ATmega328P__) || defined(__AVR_ATmega3250__) || \
defined(__AVR_ATmega3290__) || defined(__AVR_ATmega6450__) || defined(__AVR_ATmega6490__)
/* ATmega with one USART */
#define UART0_RECEIVE_INTERRUPT USART_RX_vect
#define UART0_TRANSMIT_INTERRUPT USART_UDRE_vect
#define UART0_STATUS UCSR0A
#define UART0_CONTROL UCSR0B
#define UART0_CONTROLC UCSR0C
#define UART0_DATA UDR0
#define UART0_UDRIE UDRIE0
#define UART0_UBRRL UBRR0L
#define UART0_UBRRH UBRR0H
#define UART0_BIT_U2X U2X0
#define UART0_BIT_RXCIE RXCIE0
#define UART0_BIT_RXEN RXEN0
#define UART0_BIT_TXEN TXEN0
#define UART0_BIT_UCSZ0 UCSZ00
#define UART0_BIT_UCSZ1 UCSZ01
#elif defined(__AVR_ATtiny2313__) || defined(__AVR_ATtiny2313A__) || defined(__AVR_ATtiny4313__)
/* ATtiny with one USART */
#define UART0_RECEIVE_INTERRUPT USART_RX_vect
#define UART0_TRANSMIT_INTERRUPT USART_UDRE_vect
#define UART0_STATUS UCSRA
#define UART0_CONTROL UCSRB
#define UART0_CONTROLC UCSRC
#define UART0_DATA UDR
#define UART0_UDRIE UDRIE
#define UART0_UBRRL UBRRL
#define UART0_UBRRH UBRRH
#define UART0_BIT_U2X U2X
#define UART0_BIT_RXCIE RXCIE
#define UART0_BIT_RXEN RXEN
#define UART0_BIT_TXEN TXEN
#define UART0_BIT_UCSZ0 UCSZ0
#define UART0_BIT_UCSZ1 UCSZ1
#elif defined(__AVR_ATmega329__) || defined(__AVR_ATmega649__) || defined(__AVR_ATmega3290__) || \
defined(__AVR_ATmega6490__) || defined(__AVR_ATmega169A__) || defined(__AVR_ATmega169PA__) || \
defined(__AVR_ATmega329A__) || defined(__AVR_ATmega329PA__) || defined(__AVR_ATmega3290A__) || \
defined(__AVR_ATmega3290PA__) || defined(__AVR_ATmega649A__) || defined(__AVR_ATmega649P__) || \
defined(__AVR_ATmega6490A__) || defined(__AVR_ATmega6490P__) || defined(__AVR_ATmega165__) || \
defined(__AVR_ATmega325__) || defined(__AVR_ATmega645__) || defined(__AVR_ATmega3250__) || \
defined(__AVR_ATmega6450__) || defined(__AVR_ATmega165A__) || defined(__AVR_ATmega165PA__) || \
defined(__AVR_ATmega325A__) || defined(__AVR_ATmega325PA__) || defined(__AVR_ATmega3250A__) || \
defined(__AVR_ATmega3250PA__) || defined(__AVR_ATmega645A__) || defined(__AVR_ATmega645PA__) || \
defined(__AVR_ATmega6450A__) || defined(__AVR_ATmega6450PA__) || defined(__AVR_ATmega644__)
/* ATmega with one USART */
#define UART0_RECEIVE_INTERRUPT USART0_RX_vect
#define UART0_TRANSMIT_INTERRUPT USART0_UDRE_vect
#define UART0_STATUS UCSR0A
#define UART0_CONTROL UCSR0B
#define UART0_CONTROLC UCSR0C
#define UART0_DATA UDR0
#define UART0_UDRIE UDRIE0
#define UART0_UBRRL UBRR0L
#define UART0_UBRRH UBRR0H
#define UART0_BIT_U2X U2X0
#define UART0_BIT_RXCIE RXCIE0
#define UART0_BIT_RXEN RXEN0
#define UART0_BIT_TXEN TXEN0
#define UART0_BIT_UCSZ0 UCSZ00
#define UART0_BIT_UCSZ1 UCSZ01
#elif defined(__AVR_ATmega64__) || defined(__AVR_ATmega128__) || defined(__AVR_ATmega128A__) || \
defined(__AVR_ATmega640__) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega1281__) || \
defined(__AVR_ATmega2560__) || defined(__AVR_ATmega2561__) || defined(__AVR_ATmega164P__) || \
defined(__AVR_ATmega324P__) || defined(__AVR_ATmega644P__) || defined(__AVR_ATmega164A__) || \
defined(__AVR_ATmega164PA__) || defined(__AVR_ATmega324A__) || defined(__AVR_ATmega324PA__) || \
defined(__AVR_ATmega644A__) || defined(__AVR_ATmega644PA__) || defined(__AVR_ATmega1284__) || \
defined(__AVR_ATmega1284P__) || defined(__AVR_ATtiny1634__)
/* ATmega with two USART */
#define ATMEGA_USART1
#define UART0_RECEIVE_INTERRUPT USART0_RX_vect
#define UART1_RECEIVE_INTERRUPT USART1_RX_vect
#define UART0_TRANSMIT_INTERRUPT USART0_UDRE_vect
#define UART1_TRANSMIT_INTERRUPT USART1_UDRE_vect
#define UART0_STATUS UCSR0A
#define UART0_CONTROL UCSR0B
#define UART0_CONTROLC UCSR0C
#define UART0_DATA UDR0
#define UART0_UDRIE UDRIE0
#define UART0_UBRRL UBRR0L
#define UART0_UBRRH UBRR0H
#define UART0_BIT_U2X U2X0
#define UART0_BIT_RXCIE RXCIE0
#define UART0_BIT_RXEN RXEN0
#define UART0_BIT_TXEN TXEN0
#define UART0_BIT_UCSZ0 UCSZ00
#define UART0_BIT_UCSZ1 UCSZ01
#define UART1_STATUS UCSR1A
#define UART1_CONTROL UCSR1B
#define UART1_CONTROLC UCSR1C
#define UART1_DATA UDR1
#define UART1_UDRIE UDRIE1
#define UART1_UBRRL UBRR1L
#define UART1_UBRRH UBRR1H
#define UART1_BIT_U2X U2X1
#define UART1_BIT_RXCIE RXCIE1
#define UART1_BIT_RXEN RXEN1
#define UART1_BIT_TXEN TXEN1
#define UART1_BIT_UCSZ0 UCSZ10
#define UART1_BIT_UCSZ1 UCSZ11
#elif defined(__AVR_ATmega8U2__) || defined(__AVR_ATmega16U2__) || defined(__AVR_ATmega32U2__) || \
defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__) || defined(__AVR_AT90USB82__) || \
defined(__AVR_AT90USB162__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__) || \
defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1287__)
#define UART0_RECEIVE_INTERRUPT USART1_RX_vect
#define UART0_TRANSMIT_INTERRUPT USART1_UDRE_vect
#define UART0_STATUS UCSR1A
#define UART0_CONTROL UCSR1B
#define UART0_CONTROLC UCSR1C
#define UART0_DATA UDR1
#define UART0_UDRIE UDRIE1
#define UART0_UBRRL UBRR1L
#define UART0_UBRRH UBRR1H
#define UART0_BIT_U2X U2X1
#define UART0_BIT_RXCIE RXCIE1
#define UART0_BIT_RXEN RXEN1
#define UART0_BIT_TXEN TXEN1
#define UART0_BIT_UCSZ0 UCSZ10
#define UART0_BIT_UCSZ1 UCSZ11
#else
#error "no UART definition for MCU available"
#endif
/*
* module global variables
*/
static volatile unsigned char UART_TxBuf[UART_TX_BUFFER_SIZE];
static volatile unsigned char UART_RxBuf[UART_RX_BUFFER_SIZE];
static volatile unsigned char UART_TxHead;
static volatile unsigned char UART_TxTail;
static volatile unsigned char UART_RxHead;
static volatile unsigned char UART_RxTail;
static volatile unsigned char UART_LastRxError;
#if defined(ATMEGA_USART1)
static volatile unsigned char UART1_TxBuf[UART_TX_BUFFER_SIZE];
static volatile unsigned char UART1_RxBuf[UART_RX_BUFFER_SIZE];
static volatile unsigned char UART1_TxHead;
static volatile unsigned char UART1_TxTail;
static volatile unsigned char UART1_RxHead;
static volatile unsigned char UART1_RxTail;
static volatile unsigned char UART1_LastRxError;
#endif
ISR(UART0_RECEIVE_INTERRUPT)
/*************************************************************************
Function: UART Receive Complete interrupt
Purpose: called when the UART has received a character
**************************************************************************/
{
unsigned char tmphead;
unsigned char data;
unsigned char usr;
unsigned char lastRxError;
/* read UART status register and UART data register */
usr = UART0_STATUS;
data = UART0_DATA;
/* get FEn (Frame Error) DORn (Data OverRun) UPEn (USART Parity Error) bits */
#if defined(FE) && defined(DOR) && defined(UPE)
lastRxError = usr & (_BV(FE) | _BV(DOR) | _BV(UPE));
#elif defined(FE0) && defined(DOR0) && defined(UPE0)
lastRxError = usr & (_BV(FE0) | _BV(DOR0) | _BV(UPE0));
#elif defined(FE1) && defined(DOR1) && defined(UPE1)
lastRxError = usr & (_BV(FE1) | _BV(DOR1) | _BV(UPE1));
#elif defined(FE) && defined(DOR)
lastRxError = usr & (_BV(FE) | _BV(DOR));
#endif
/* calculate buffer index */
tmphead = (UART_RxHead + 1) & UART_RX_BUFFER_MASK;
if (tmphead == UART_RxTail) {
/* error: receive buffer overflow */
lastRxError = UART_BUFFER_OVERFLOW >> 8;
} else {
/* store new index */
UART_RxHead = tmphead;
/* store received data in buffer */
UART_RxBuf[tmphead] = data;
}
UART_LastRxError |= lastRxError;
}
ISR(UART0_TRANSMIT_INTERRUPT)
/*************************************************************************
Function: UART Data Register Empty interrupt
Purpose: called when the UART is ready to transmit the next byte
**************************************************************************/
{
unsigned char tmptail;
if (UART_TxHead != UART_TxTail) {
/* calculate and store new buffer index */
tmptail = (UART_TxTail + 1) & UART_TX_BUFFER_MASK;
UART_TxTail = tmptail;
/* get one byte from buffer and write it to UART */
UART0_DATA = UART_TxBuf[tmptail]; /* start transmission */
} else {
/* tx buffer empty, disable UDRE interrupt */
UART0_CONTROL &= ~_BV(UART0_UDRIE);
}
}
/*************************************************************************
Function: uart_init()
Purpose: initialize UART and set baudrate
Input: baudrate using macro UART_BAUD_SELECT()
Returns: none
**************************************************************************/
void uart_init(unsigned int baudrate)
{
UART_TxHead = 0;
UART_TxTail = 0;
UART_RxHead = 0;
UART_RxTail = 0;
#ifdef UART_TEST
#ifndef UART0_BIT_U2X
#warning "UART0_BIT_U2X not defined"
#endif
#ifndef UART0_UBRRH
#warning "UART0_UBRRH not defined"
#endif
#ifndef UART0_CONTROLC
#warning "UART0_CONTROLC not defined"
#endif
#if defined(URSEL) || defined(URSEL0)
#ifndef UART0_BIT_URSEL
#warning "UART0_BIT_URSEL not defined"
#endif
#endif
#endif
/* Set baud rate */
if (baudrate & 0x8000) {
#if UART0_BIT_U2X
UART0_STATUS = (1 << UART0_BIT_U2X); // Enable 2x speed
#endif
}
#if defined(UART0_UBRRH)
UART0_UBRRH = (unsigned char)((baudrate >> 8) & 0x80);
#endif
UART0_UBRRL = (unsigned char)(baudrate & 0x00FF);
/* Enable USART receiver and transmitter and receive complete interrupt */
UART0_CONTROL = _BV(UART0_BIT_RXCIE) | (1 << UART0_BIT_RXEN) | (1 << UART0_BIT_TXEN);
/* Set frame format: asynchronous, 8data, no parity, 1stop bit */
#ifdef UART0_CONTROLC
#ifdef UART0_BIT_URSEL
UART0_CONTROLC = (1 << UART0_BIT_URSEL) | (1 << UART0_BIT_UCSZ1) | (1 << UART0_BIT_UCSZ0);
#else
UART0_CONTROLC = (1 << UART0_BIT_UCSZ1) | (1 << UART0_BIT_UCSZ0);
#endif
#endif
} /* uart_init */
/*************************************************************************
Function: uart_getc()
Purpose: return byte from ringbuffer
Returns: lower byte: received byte from ringbuffer
higher byte: last receive error
**************************************************************************/
unsigned int uart_getc(void)
{
unsigned char tmptail;
unsigned char data;
unsigned char lastRxError;
if (UART_RxHead == UART_RxTail) {
return UART_NO_DATA; /* no data available */
}
/* calculate buffer index */
tmptail = (UART_RxTail + 1) & UART_RX_BUFFER_MASK;
/* get data from receive buffer */
data = UART_RxBuf[tmptail];
lastRxError = UART_LastRxError;
/* store buffer index */
UART_RxTail = tmptail;
UART_LastRxError = 0;
return (lastRxError << 8) + data;
} /* uart_getc */
/*************************************************************************
Function: uart_putc()
Purpose: write byte to ringbuffer for transmitting via UART
Input: byte to be transmitted
Returns: none
**************************************************************************/
void uart_putc(unsigned char data)
{
unsigned char tmphead;
tmphead = (UART_TxHead + 1) & UART_TX_BUFFER_MASK;
while (tmphead == UART_TxTail) {
; /* wait for free space in buffer */
}
UART_TxBuf[tmphead] = data;
UART_TxHead = tmphead;
/* enable UDRE interrupt */
UART0_CONTROL |= _BV(UART0_UDRIE);
} /* uart_putc */
/*************************************************************************
Function: uart_puts()
Purpose: transmit string to UART
Input: string to be transmitted
Returns: none
**************************************************************************/
void uart_puts(const char *s)
{
while (*s)
uart_putc(*s++);
} /* uart_puts */
/*************************************************************************
Function: uart_puts_p()
Purpose: transmit string from program memory to UART
Input: program memory string to be transmitted
Returns: none
**************************************************************************/
void uart_puts_p(const char *progmem_s)
{
register char c;
while ((c = pgm_read_byte(progmem_s++)))
uart_putc(c);
} /* uart_puts_p */
/*
* these functions are only for ATmegas with two USART
*/
#if defined(ATMEGA_USART1)
ISR(UART1_RECEIVE_INTERRUPT)
/*************************************************************************
Function: UART1 Receive Complete interrupt
Purpose: called when the UART1 has received a character
**************************************************************************/
{
unsigned char tmphead;
unsigned char data;
unsigned char usr;
unsigned char lastRxError;
/* read UART status register and UART data register */
usr = UART1_STATUS;
data = UART1_DATA;
/* get FEn (Frame Error) DORn (Data OverRun) UPEn (USART Parity Error) bits */
lastRxError = usr & (_BV(FE1) | _BV(DOR1) | _BV(UPE1));
/* calculate buffer index */
tmphead = (UART1_RxHead + 1) & UART_RX_BUFFER_MASK;
if (tmphead == UART1_RxTail) {
/* error: receive buffer overflow */
lastRxError = UART_BUFFER_OVERFLOW >> 8;
} else {
/* store new index */
UART1_RxHead = tmphead;
/* store received data in buffer */
UART1_RxBuf[tmphead] = data;
}
UART1_LastRxError |= lastRxError;
}
ISR(UART1_TRANSMIT_INTERRUPT)
/*************************************************************************
Function: UART1 Data Register Empty interrupt
Purpose: called when the UART1 is ready to transmit the next byte
**************************************************************************/
{
unsigned char tmptail;
if (UART1_TxHead != UART1_TxTail) {
/* calculate and store new buffer index */
tmptail = (UART1_TxTail + 1) & UART_TX_BUFFER_MASK;
UART1_TxTail = tmptail;
/* get one byte from buffer and write it to UART */
UART1_DATA = UART1_TxBuf[tmptail]; /* start transmission */
} else {
/* tx buffer empty, disable UDRE interrupt */
UART1_CONTROL &= ~_BV(UART1_UDRIE);
}
}
/*************************************************************************
Function: uart1_init()
Purpose: initialize UART1 and set baudrate
Input: baudrate using macro UART_BAUD_SELECT()
Returns: none
**************************************************************************/
void uart1_init(unsigned int baudrate)
{
UART1_TxHead = 0;
UART1_TxTail = 0;
UART1_RxHead = 0;
UART1_RxTail = 0;
#ifdef UART_TEST
#ifndef UART1_BIT_U2X
#warning "UART1_BIT_U2X not defined"
#endif
#ifndef UART1_UBRRH
#warning "UART1_UBRRH not defined"
#endif
#ifndef UART1_CONTROLC
#warning "UART1_CONTROLC not defined"
#endif
#if defined(URSEL) || defined(URSEL1)
#ifndef UART1_BIT_URSEL
#warning "UART1_BIT_URSEL not defined"
#endif
#endif
#endif
/* Set baud rate */
if (baudrate & 0x8000) {
#if UART1_BIT_U2X
UART1_STATUS = (1 << UART1_BIT_U2X); // Enable 2x speed
#endif
}
UART1_UBRRH = (unsigned char)((baudrate >> 8) & 0x80);
UART1_UBRRL = (unsigned char)baudrate;
/* Enable USART receiver and transmitter and receive complete interrupt */
UART1_CONTROL = _BV(UART1_BIT_RXCIE) | (1 << UART1_BIT_RXEN) | (1 << UART1_BIT_TXEN);
/* Set frame format: asynchronous, 8data, no parity, 1stop bit */
#ifdef UART1_BIT_URSEL
UART1_CONTROLC = (1 << UART1_BIT_URSEL) | (1 << UART1_BIT_UCSZ1) | (1 << UART1_BIT_UCSZ0);
#else
UART1_CONTROLC = (1 << UART1_BIT_UCSZ1) | (1 << UART1_BIT_UCSZ0);
#endif
} /* uart_init */
/*************************************************************************
Function: uart1_getc()
Purpose: return byte from ringbuffer
Returns: lower byte: received byte from ringbuffer
higher byte: last receive error
**************************************************************************/
unsigned int uart1_getc(void)
{
unsigned char tmptail;
unsigned int data;
unsigned char lastRxError;
if (UART1_RxHead == UART1_RxTail) {
return UART_NO_DATA; /* no data available */
}
/* calculate buffer index */
tmptail = (UART1_RxTail + 1) & UART_RX_BUFFER_MASK;
/* get data from receive buffer */
data = UART1_RxBuf[tmptail];
lastRxError = UART1_LastRxError;
/* store buffer index */
UART1_RxTail = tmptail;
UART1_LastRxError = 0;
return (lastRxError << 8) + data;
} /* uart1_getc */
/*************************************************************************
Function: uart1_putc()
Purpose: write byte to ringbuffer for transmitting via UART
Input: byte to be transmitted
Returns: none
**************************************************************************/
void uart1_putc(unsigned char data)
{
unsigned char tmphead;
tmphead = (UART1_TxHead + 1) & UART_TX_BUFFER_MASK;
while (tmphead == UART1_TxTail) {
; /* wait for free space in buffer */
}
UART1_TxBuf[tmphead] = data;
UART1_TxHead = tmphead;
/* enable UDRE interrupt */
UART1_CONTROL |= _BV(UART1_UDRIE);
} /* uart1_putc */
/*************************************************************************
Function: uart1_puts()
Purpose: transmit string to UART1
Input: string to be transmitted
Returns: none
**************************************************************************/
void uart1_puts(const char *s)
{
while (*s)
uart1_putc(*s++);
} /* uart1_puts */
/*************************************************************************
Function: uart1_puts_p()
Purpose: transmit string from program memory to UART1
Input: program memory string to be transmitted
Returns: none
**************************************************************************/
void uart1_puts_p(const char *progmem_s)
{
register char c;
while ((c = pgm_read_byte(progmem_s++)))
uart1_putc(c);
} /* uart1_puts_p */
#endif

196
uart.h
View File

@@ -1,196 +0,0 @@
#ifndef UART_H
#define UART_H
/************************************************************************
Title: Interrupt UART library with receive/transmit circular buffers
Author: Peter Fleury <pfleury@gmx.ch> http://tinyurl.com/peterfleury
File: $Id: uart.h,v 1.13 2015/01/11 13:53:25 peter Exp $
Software: AVR-GCC 4.x, AVR Libc 1.4 or higher
Hardware: any AVR with built-in UART/USART
Usage: see Doxygen manual
LICENSE:
Copyright (C) 2015 Peter Fleury, GNU General Public License Version 3
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
************************************************************************/
/**
* @file
* @defgroup pfleury_uart UART Library <uart.h>
* @code #include <uart.h> @endcode
*
* @brief Interrupt UART library using the built-in UART with transmit and receive circular buffers.
*
* This library can be used to transmit and receive data through the built in UART.
*
* An interrupt is generated when the UART has finished transmitting or
* receiving a byte. The interrupt handling routines use circular buffers
* for buffering received and transmitted data.
*
* The UART_RX_BUFFER_SIZE and UART_TX_BUFFER_SIZE constants define
* the size of the circular buffers in bytes. Note that these constants must be a power of 2.
* You may need to adapt these constants to your target and your application by adding
* CDEFS += -DUART_RX_BUFFER_SIZE=nn -DUART_TX_BUFFER_SIZE=nn to your Makefile.
*
* @note Based on Atmel Application Note AVR306
* @author Peter Fleury pfleury@gmx.ch http://tinyurl.com/peterfleury
* @copyright (C) 2015 Peter Fleury, GNU General Public License Version 3
*/
#include <avr/pgmspace.h>
#if (__GNUC__ * 100 + __GNUC_MINOR__) < 405
#error "This library requires AVR-GCC 4.5 or later, update to newer AVR-GCC compiler !"
#endif
/**@{*/
/*
** constants and macros
*/
/** @brief UART Baudrate Expression
* @param xtalCpu system clock in Mhz, e.g. 4000000UL for 4Mhz
* @param baudRate baudrate in bps, e.g. 1200, 2400, 9600
*/
#define UART_BAUD_SELECT(baudRate, xtalCpu) (((xtalCpu) + 8UL * (baudRate)) / (16UL * (baudRate)) - 1UL)
/** @brief UART Baudrate Expression for ATmega double speed mode
* @param xtalCpu system clock in Mhz, e.g. 4000000UL for 4Mhz
* @param baudRate baudrate in bps, e.g. 1200, 2400, 9600
*/
#define UART_BAUD_SELECT_DOUBLE_SPEED(baudRate, xtalCpu) \
(((((xtalCpu) + 4UL * (baudRate)) / (8UL * (baudRate)) - 1UL)) | 0x8000)
/** @brief Size of the circular receive buffer, must be power of 2
*
* You may need to adapt this constant to your target and your application by adding
* CDEFS += -DUART_RX_BUFFER_SIZE=nn to your Makefile.
*/
#ifndef UART_RX_BUFFER_SIZE
#define UART_RX_BUFFER_SIZE 32
#endif
/** @brief Size of the circular transmit buffer, must be power of 2
*
* You may need to adapt this constant to your target and your application by adding
* CDEFS += -DUART_TX_BUFFER_SIZE=nn to your Makefile.
*/
#ifndef UART_TX_BUFFER_SIZE
#define UART_TX_BUFFER_SIZE 32
#endif
/* test if the size of the circular buffers fits into SRAM */
#if ((UART_RX_BUFFER_SIZE + UART_TX_BUFFER_SIZE) >= (RAMEND - 0x60))
#error "size of UART_RX_BUFFER_SIZE + UART_TX_BUFFER_SIZE larger than size of SRAM"
#endif
/*
** high byte error return code of uart_getc()
*/
#define UART_FRAME_ERROR 0x1000 /**< @brief Framing Error by UART */
#define UART_OVERRUN_ERROR 0x0800 /**< @brief Overrun condition by UART */
#define UART_PARITY_ERROR 0x0400 /**< @brief Parity Error by UART */
#define UART_BUFFER_OVERFLOW 0x0200 /**< @brief receive ringbuffer overflow */
#define UART_NO_DATA 0x0100 /**< @brief no receive data available */
/*
** function prototypes
*/
/**
@brief Initialize UART and set baudrate
@param baudrate Specify baudrate using macro UART_BAUD_SELECT()
@return none
*/
extern void uart_init(unsigned int baudrate);
/**
* @brief Get received byte from ringbuffer
*
* Returns in the lower byte the received character and in the
* higher byte the last receive error.
* UART_NO_DATA is returned when no data is available.
*
* @return lower byte: received byte from ringbuffer
* @return higher byte: last receive status
* - \b 0 successfully received data from UART
* - \b UART_NO_DATA
* <br>no receive data available
* - \b UART_BUFFER_OVERFLOW
* <br>Receive ringbuffer overflow.
* We are not reading the receive buffer fast enough,
* one or more received character have been dropped
* - \b UART_OVERRUN_ERROR
* <br>Overrun condition by UART.
* A character already present in the UART UDR register was
* not read by the interrupt handler before the next character arrived,
* one or more received characters have been dropped.
* - \b UART_FRAME_ERROR
* <br>Framing Error by UART
*/
extern unsigned int uart_getc(void);
/**
* @brief Put byte to ringbuffer for transmitting via UART
* @param data byte to be transmitted
* @return none
*/
extern void uart_putc(unsigned char data);
/**
* @brief Put string to ringbuffer for transmitting via UART
*
* The string is buffered by the uart library in a circular buffer
* and one character at a time is transmitted to the UART using interrupts.
* Blocks if it can not write the whole string into the circular buffer.
*
* @param s string to be transmitted
* @return none
*/
extern void uart_puts(const char *s);
/**
* @brief Put string from program memory to ringbuffer for transmitting via UART.
*
* The string is buffered by the uart library in a circular buffer
* and one character at a time is transmitted to the UART using interrupts.
* Blocks if it can not write the whole string into the circular buffer.
*
* @param s program memory string to be transmitted
* @return none
* @see uart_puts_P
*/
extern void uart_puts_p(const char *s);
/**
* @brief Macro to automatically put a string constant into program memory
*/
#define uart_puts_P(__s) uart_puts_p(PSTR(__s))
/** @brief Initialize USART1 (only available on selected ATmegas) @see uart_init */
extern void uart1_init(unsigned int baudrate);
/** @brief Get received byte of USART1 from ringbuffer. (only available on selected ATmega) @see uart_getc */
extern unsigned int uart1_getc(void);
/** @brief Put byte to ringbuffer for transmitting via USART1 (only available on selected ATmega) @see uart_putc */
extern void uart1_putc(unsigned char data);
/** @brief Put string to ringbuffer for transmitting via USART1 (only available on selected ATmega) @see uart_puts */
extern void uart1_puts(const char *s);
/** @brief Put string from program memory to ringbuffer for transmitting via USART1 (only available on selected ATmega)
* @see uart_puts_p */
extern void uart1_puts_p(const char *s);
/** @brief Macro to automatically put a string constant into program memory */
#define uart1_puts_P(__s) uart1_puts_p(PSTR(__s))
/**@}*/
#endif // UART_H

245
uart.hpp
View File

@@ -1,9 +1,12 @@
#pragma once
#include <stdint.h>
#include "config.hpp"
#include "hardware0.hpp"
#include "hardware1.hpp"
#include "software.hpp"
#include "utils.hpp"
#include "../flash/flash.hpp"
@@ -13,21 +16,45 @@ namespace uart {
namespace detail {
template <typename...>
struct always_false {
static constexpr auto value = false;
};
template <typename T, T limit, size_t Base>
static constexpr size_t cntDigits()
{
T num = limit;
size_t cnt = 0;
if (num < 0) {
num = -num;
++cnt;
}
do {
num /= 10;
++cnt;
} while (num > 0);
return cnt;
}
template <typename T, size_t Base>
static constexpr size_t maxNumDigits()
{
T minDigits = cntDigits<T, util::NumericLimits<T>::min(), Base>();
T maxDigits = cntDigits<T, util::NumericLimits<T>::max(), Base>();
return (minDigits < maxDigits) ? maxDigits : minDigits;
}
} // namespace detail
template <class Driver>
class Uart {
public:
// Initialization is done upon construction
Uart()
{
Driver::init();
}
using data_t = typename Driver::data_t;
// Constructing a uart object does not initialize the driver to allow different specializations with the same
// back-end to exists at the same time
// Note that init must be called every time when switching specializations with the same back-end
Uart() = default;
// Moving and copying uart objects is not supported
Uart(const Uart &) = delete;
@@ -35,17 +62,23 @@ class Uart {
Uart &operator=(const Uart &) = delete;
Uart &operator=(Uart &&) = delete;
static void txByte(const typename Driver::data_t &byte)
// Before using the uart init must be called
static void init()
{
Driver::init();
}
static void txByte(const data_t &byte)
{
Driver::txByte(byte);
}
static bool rxByte(typename Driver::data_t &byte)
static bool rxByte(data_t &byte)
{
return Driver::rxByte(byte);
}
static bool peek(typename Driver::data_t &byte)
static bool peek(data_t &byte)
{
return Driver::peek(byte);
}
@@ -73,6 +106,32 @@ class Uart {
txByte(ch);
}
template <typename T, size_t Base = 10>
static inline void txNumber(const T &val)
{
static_assert(util::is_integral_v<T>, "Only supported on integral types");
constexpr size_t numDigits = detail::maxNumDigits<T, Base>();
data_t buffer[numDigits];
data_t *bufEnd = buffer + numDigits - 1;
T digits = val;
if (digits < 0) {
digits = -digits;
txByte('-');
}
do {
data_t lastDigit = digits % Base;
*bufEnd-- = '0' + lastDigit;
digits /= Base;
} while (digits > 0);
for (data_t *buf = bufEnd + 1; buf < buffer + numDigits; ++buf)
txByte(*buf);
}
//////////////////////////////////////////////////////////////////////////
// Output stream overloads
@@ -88,187 +147,187 @@ class Uart {
return *this;
}
template <typename... Ts>
Uart &operator<<(char)
Uart &operator<<(const char &val)
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
txByte(val);
return *this;
}
Uart &operator<<(const unsigned char &val)
{
txNumber(val);
return *this;
}
Uart &operator<<(const short &val)
{
txNumber(val);
return *this;
}
template <typename... Ts>
Uart &operator<<(unsigned char)
Uart &operator<<(unsigned short) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
Uart &operator<<(const int &val)
{
txNumber(val);
return *this;
}
Uart &operator<<(const unsigned int &val)
{
txNumber(val);
return *this;
}
template <typename... Ts>
Uart &operator<<(short)
Uart &operator<<(long) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator<<(unsigned short)
Uart &operator<<(unsigned long) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator<<(int)
Uart &operator<<(long long) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator<<(unsigned int)
Uart &operator<<(unsigned long long) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator<<(long)
Uart &operator<<(float) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator<<(unsigned long)
Uart &operator<<(double) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator<<(long long)
Uart &operator<<(long double) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
Uart &operator<<(const bool &val)
{
txString(val ? F("true") : F("false"));
return *this;
}
template <typename... Ts>
Uart &operator<<(unsigned long long)
Uart &operator<<(const void *) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
}
template <typename... Ts>
Uart &operator<<(float)
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
}
template <typename... Ts>
Uart &operator<<(double)
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
}
template <typename... Ts>
Uart &operator<<(long double)
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
}
template <typename... Ts>
Uart &operator<<(bool)
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
}
template <typename... Ts>
Uart &operator<<(const void *)
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
//////////////////////////////////////////////////////////////////////////
// Input stream overloads
template <typename... Ts>
Uart &operator>>(char &)
Uart &operator>>(char &) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator>>(unsigned char &)
Uart &operator>>(unsigned char &) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator>>(short &)
Uart &operator>>(short &) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator>>(unsigned short &)
Uart &operator>>(unsigned short &) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator>>(int &)
Uart &operator>>(int &) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator>>(unsigned int &)
Uart &operator>>(unsigned int &) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator>>(long &)
Uart &operator>>(long &) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator>>(unsigned long &)
Uart &operator>>(unsigned long &) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator>>(long long &)
Uart &operator>>(long long &) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator>>(unsigned long long &)
Uart &operator>>(unsigned long long &) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator>>(float &)
Uart &operator>>(float &) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator>>(double &)
Uart &operator>>(double &) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator>>(long double &)
Uart &operator>>(long double &) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator>>(bool &)
Uart &operator>>(bool &) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
template <typename... Ts>
Uart &operator>>(const void *&)
Uart &operator>>(const void *&) const
{
static_assert(detail::always_false<Ts...>::value, "Not implemented");
static_assert(util::always_false_v<Ts...>, "Not implemented");
}
};

642
usart.cpp
View File

@@ -1,642 +0,0 @@
#include "usart.h"
//////////////////////////////////////////////////////////////////////////
USART0 USART0::sm_cInstance;
//////////////////////////////////////////////////////////////////////////
USART0::USART0()
{
#ifdef USART_SHAREDIO
m_vui8pUCSRA = &UCSRA;
m_vui8pUCSRB = &UCSRB;
m_vui8pUCSRC = &UCSRC;
m_vui8pUBRRH = &UBRRH;
m_vui8pUBRRL = &UBRRL;
m_vui8pUDR = &UDR;
#endif
#ifndef USART_SHAREDIO
m_vui8pUCSRA = &UCSR0A;
m_vui8pUCSRB = &UCSR0B;
m_vui8pUCSRC = &UCSR0C;
m_vui8pUBRRH = &UBRR0H;
m_vui8pUBRRL = &UBRR0L;
m_vui8pUDR = &UDR0;
#endif
m_vsizeRXBufferHead = 0;
m_vsizeRXBufferTail = 0;
m_vsizeTXBufferHead = 0;
m_vsizeTXBufferTail = 0;
}
//////////////////////////////////////////////////////////////////////////
uint8_t USART0::readUCSRC()
{
uint8_t ui8UCSRC;
#ifdef USART_SHAREDIO
ui8UCSRC = UBRRH;
ui8UCSRC = UCSRC;
#else
ui8UCSRC = *m_vui8pUCSRC;
#endif
return ui8UCSRC;
}
//////////////////////////////////////////////////////////////////////////
void USART0::setUCSRC( uint8_t ui8UCSRC )
{
#ifdef USART_SHAREDIO
*m_vui8pUCSRC = ( 1 << URSEL ) | ui8UCSRC;
#else
*m_vui8pUCSRC = ui8UCSRC;
#endif
}
//////////////////////////////////////////////////////////////////////////
void USART0::setRXState( bool bEnable )
{
if( bEnable )
{
*m_vui8pUCSRB |= ( 1 << RXEN_D );
}
else
{
*m_vui8pUCSRB &= ~( 1 << RXEN_D );
}
}
//////////////////////////////////////////////////////////////////////////
void USART0::setTXState( bool bEnable )
{
if( bEnable )
{
*m_vui8pUCSRB |= ( 1 << TXEN_D );
}
else
{
*m_vui8pUCSRB &= ~( 1 << TXEN_D );
}
}
//////////////////////////////////////////////////////////////////////////
void USART0::setRXInterrupt( bool bEnable )
{
if( bEnable )
{
*m_vui8pUCSRB |= ( 1 << RXCIE_D );
}
else
{
*m_vui8pUCSRB &= ~( 1 << RXCIE_D );
}
}
//////////////////////////////////////////////////////////////////////////
void USART0::setUDREInterrupt( bool bEnable )
{
if( bEnable )
{
*m_vui8pUCSRB |= ( 1 << UDRIE_D );
}
else
{
*m_vui8pUCSRB &= ~( 1 << UDRIE_D );
}
}
//////////////////////////////////////////////////////////////////////////
void USART0::setBaudRate( uint32_t ui32BaudRate )
{
uint16_t ui16UBRR = ( ( F_CPU / ( 16 * ui32BaudRate ) ) - 1 );
*m_vui8pUBRRH = static_cast<uint8_t>( ui16UBRR >> 8 );
*m_vui8pUBRRL = static_cast<uint8_t>( ui16UBRR );
}
//////////////////////////////////////////////////////////////////////////
void USART0::setDataBits( uint8_t ui8DataBits )
{
uint8_t ui8UCSRC = readUCSRC();
if( ui8DataBits < 5 )
{
ui8DataBits = 5;
}
else if( ui8DataBits > 9 )
{
ui8DataBits = 9;
}
if( ui8DataBits <= 8 )
{
bool bZeroBit = ( ui8DataBits - 5 ) & 1;
bool bOneBit = ( ( ui8DataBits - 5 ) >> 1 ) & 1;
if( bZeroBit )
{
ui8UCSRC |= ( 1 << UCSZ0_D );
}
else
{
ui8UCSRC &= ~( 1 << UCSZ0_D );
}
if( bOneBit )
{
ui8UCSRC |= ( 1 << UCSZ1_D );
}
else
{
ui8UCSRC &= ~( 1 << UCSZ1_D );
}
*m_vui8pUCSRB &= ~( 1 << UCSZ2_D );
}
else
{
ui8UCSRC |= ( 1 << UCSZ1_D ) | ( 1 << UCSZ0_D );
*m_vui8pUCSRB |= ( 1 << UCSZ2_D );
}
setUCSRC( ui8UCSRC );
}
//////////////////////////////////////////////////////////////////////////
void USART0::setParity( Parity enmParity )
{
uint8_t ui8UCSRC = readUCSRC();
if( enmParity == Parity::DISABLED )
{
ui8UCSRC &= ~( ( 1 << UPM1_D ) | ( 1 << UPM0_D ) );
}
else if( enmParity == Parity::ODD )
{
ui8UCSRC |= ( ( 1 << UPM1_D ) | ( 1 << UPM0_D ) );
}
else if( enmParity == Parity::EVEN )
{
ui8UCSRC &= ~( ( 1 << UPM0_D ) );
ui8UCSRC |= ( ( 1 << UPM1_D ) );
}
setUCSRC( ui8UCSRC );
}
//////////////////////////////////////////////////////////////////////////
void USART0::setStopBits( StopBit enmStopBits )
{
uint8_t ui8UCSRC = readUCSRC();
if( enmStopBits == StopBit::ONE )
{
ui8UCSRC &= ~( 1 << USBS_D );
}
else if( enmStopBits == StopBit::TWO )
{
ui8UCSRC |= ( 1 << USBS_D );
}
setUCSRC( ui8UCSRC );
}
//////////////////////////////////////////////////////////////////////////
void USART0::setMode( Mode enmMode )
{
uint8_t ui8UCSRC = readUCSRC();
#ifdef USART_SPI
if( enmMode == Mode::ASYNCHRONOUS )
{
ui8UCSRC &= ~( ( 1 << UMSEL1_D ) | ( 1 << UMSEL0_D ) );
}
else if( enmMode == Mode::SYNCHRONOUS )
{
ui8UCSRC &= ~( 1 << UMSEL1_D );
ui8UCSRC |= ( 1 << UMSEL0_D );
}
else if( enmMode == Mode::MASTERSPI )
{
ui8UCSRC |= ( ( 1 << UMSEL1_D ) | ( 1 << UMSEL0_D ) );
}
#else
if( enmMode == Mode::ASYNCHRONOUS )
{
ui8UCSRC &= ~( 1 << UMSEL_D );
}
else if( enmMode == Mode::SYNCHRONOUS )
{
ui8UCSRC |= ( 1 << UMSEL_D );
}
#endif
setUCSRC( ui8UCSRC );
}
//////////////////////////////////////////////////////////////////////////
uint32_t USART0::getBaudRate()
{
uint16_t ui16UBRR;
ui16UBRR = static_cast<uint16_t>( *m_vui8pUBRRH ) << 8;
ui16UBRR |= *m_vui8pUBRRL;
return F_CPU / ( static_cast<uint32_t>( 16 ) * ( ui16UBRR + 1 ) );
}
//////////////////////////////////////////////////////////////////////////
uint8_t USART0::getDataBits()
{
if( *m_vui8pUCSRB & ( 1 << UCSZ2_D ) )
{
return 9;
}
uint8_t ui8UCSRC = readUCSRC();
bool bZeroBit = ui8UCSRC & ( 1 << UCSZ0_D );
bool bOneBit = ui8UCSRC & ( 1 << UCSZ1_D );
return 5 + ( bOneBit << 1 | bZeroBit );
}
//////////////////////////////////////////////////////////////////////////
USART0::Parity USART0::getParity()
{
uint8_t ui8UCSRC = readUCSRC();
bool bZeroBit = ui8UCSRC & ( 1 << UPM0_D );
bool bOneBit = ui8UCSRC & ( 1 << UPM1_D );
if( bOneBit && !bZeroBit )
{
return Parity::EVEN;
}
if( bOneBit && bZeroBit )
{
return Parity::ODD;
}
return Parity::DISABLED;
}
//////////////////////////////////////////////////////////////////////////
USART0::StopBit USART0::getStopBits()
{
uint8_t ui8UCSRC = readUCSRC();
if( ui8UCSRC & ( 1 << USBS_D ) )
{
return StopBit::TWO;
}
return StopBit::ONE;
}
//////////////////////////////////////////////////////////////////////////
USART0::~USART0()
{
flushTransmit();
setBaudRate( 0 );
setRXState( false );
setTXState( false );
setRXInterrupt( false );
setUDREInterrupt( false );
}
//////////////////////////////////////////////////////////////////////////
USART0& USART0::inst()
{
return sm_cInstance;
}
//////////////////////////////////////////////////////////////////////////
void USART0::init( uint32_t ui32BaudRate /* = 9600 */, uint8_t ui8DataBits /* = 8 */, Parity enmParity /* = Parity::DISABLED */, StopBit enmStopBits /* = StopBit::ONE */, Mode enmMode /* = Mode::ASYNCHRONOUS */ )
{
setBaudRate( ui32BaudRate );
setDataBits( ui8DataBits );
setParity( enmParity );
setStopBits( enmStopBits );
setMode( enmMode );
setRXState( true );
setTXState( true );
setRXInterrupt( true );
setUDREInterrupt( false );
}
//////////////////////////////////////////////////////////////////////////
bool USART0::receiveByte( uint8_t &ui8Data )
{
if( m_vsizeRXBufferHead == m_vsizeRXBufferTail && !( SREG & ( 1 << SREG_I ) ) )
{
while( !( *m_vui8pUCSRA & ( 1 << RXC_D ) ) );
ui8Data = *m_vui8pUDR;
return true;
}
else if( m_vsizeRXBufferHead == m_vsizeRXBufferTail )
{
return false;
}
ui8Data = m_vui8aRXBuffer[m_vsizeRXBufferTail];
m_vsizeRXBufferTail = ( m_vsizeRXBufferTail + 1 ) % sm_sizeRXBUFFER_SIZE;
return true;
}
//////////////////////////////////////////////////////////////////////////
bool USART0::receiveByte( uint8_t &ui8Data, uint16_t ui16TimeoutMS )
{
uint16_t ui16DelayCounter = 0;
while( !receiveByte( ui8Data ) )
{
_delay_ms( 1 );
if( ui16DelayCounter++ > ui16TimeoutMS )
{
return false;
}
}
return true;
}
//////////////////////////////////////////////////////////////////////////
uint8_t USART0::receiveByteBlocked()
{
uint8_t ui8Received;
while( !receiveByte( ui8Received ) );
return ui8Received;
}
//////////////////////////////////////////////////////////////////////////
uint8_t USART0::receivePeek()
{
uint8_t ui8Received;
if( !( SREG & ( 1 << SREG_I ) && m_vsizeRXBufferHead == m_vsizeRXBufferTail ) )
{
while( !( *m_vui8pUCSRA & ( 1 << RXC_D ) ) );
ui8Received = *m_vui8pUDR;
size_t sizeIndex = ( m_vsizeRXBufferHead + 1 ) % sm_sizeRXBUFFER_SIZE;
if( sizeIndex != m_vsizeRXBufferTail )
{
m_vui8aRXBuffer[m_vsizeRXBufferHead] = ui8Received;
m_vsizeRXBufferHead = sizeIndex;
}
return ui8Received;
}
while( m_vsizeRXBufferHead == m_vsizeRXBufferTail );
return m_vui8aRXBuffer[m_vsizeRXBufferTail];
}
//////////////////////////////////////////////////////////////////////////
bool USART0::receiveLine( char *szBuffer, size_t sizeBufferLength, const char *szLineTerminator /* = "\r\n" */ )
{
size_t sizeReceived = 0;
while( sizeReceived < sizeBufferLength - 1 )
{
uint8_t ui8ReceiveByte;
while( !receiveByte( ui8ReceiveByte ) );
szBuffer[sizeReceived++] = ui8ReceiveByte;
szBuffer[sizeReceived] = '\0';
if( strstr( szBuffer, szLineTerminator ) )
{
szBuffer[sizeReceived - strlen( szLineTerminator )] = '\0';
return true;
}
}
return false;
}
//////////////////////////////////////////////////////////////////////////
bool USART0::receiveLine( char *szBuffer, size_t sizeBufferLength, uint16_t ui16TimeoutMS, const char *szLineTerminator /* = "\r\n" */ )
{
size_t sizeReceived = 0;
while( sizeReceived < sizeBufferLength - 1 )
{
uint8_t ui8ReceiveByte;
uint16_t ui16DelayCounter = 0;
while( !receiveByte( ui8ReceiveByte ) )
{
_delay_ms( 1 );
if( ui16DelayCounter++ > ui16TimeoutMS )
{
szBuffer[sizeReceived] = '\0';
return false;
}
}
szBuffer[sizeReceived++] = ui8ReceiveByte;
szBuffer[sizeReceived] = '\0';
if( strstr( szBuffer, szLineTerminator ) )
{
szBuffer[sizeReceived - strlen( szLineTerminator )] = '\0';
return true;
}
}
return false;
}
//////////////////////////////////////////////////////////////////////////
void USART0::flushReceive()
{
uint32_t ui32BaudRate = getBaudRate();
uint8_t ui8BitsPerSymbol = 1;
ui8BitsPerSymbol += getDataBits();
if( getParity() != Parity::DISABLED )
{
ui8BitsPerSymbol += 1;
}
if( getStopBits() == StopBit::ONE )
{
ui8BitsPerSymbol += 1;
}
else
{
ui8BitsPerSymbol += 2;
}
uint16_t ui16BaudDelayMS = static_cast<uint16_t>( ( 1000.0 * ui8BitsPerSymbol ) / ui32BaudRate ) + 1;
uint8_t ui8Received;
if( !( SREG & ( 1 << SREG_I ) ) )
{
while( true )
{
for( uint16_t i = 0; i < ui16BaudDelayMS; ++i )
{
_delay_ms( 1 );
}
if( m_vsizeRXBufferHead != m_vsizeRXBufferTail )
{
receiveByte( ui8Received );
continue;
}
if( ( *m_vui8pUCSRA & ( 1 << RXC_D ) ) )
{
ui8Received = *m_vui8pUDR;
continue;
}
break;
}
}
else
{
while( receiveByte( ui8Received, ui16BaudDelayMS ) );
}
}
//////////////////////////////////////////////////////////////////////////
void USART0::transmitByte( uint8_t ui8Data )
{
if( m_vsizeTXBufferHead == m_vsizeTXBufferTail && *m_vui8pUCSRA & ( 1 << UDRE_D ) )
{
*m_vui8pUDR = ui8Data;
return;
}
size_t sizeIndex = ( m_vsizeTXBufferHead + 1 ) % sm_sizeTXBUFFER_SIZE;
while( sizeIndex == m_vsizeTXBufferTail )
{
if( !( SREG & ( 1 << SREG_I ) ) && *m_vui8pUCSRA & ( 1 << UDRE_D ) )
{
transmitInterruptHandler();
}
}
m_vui8aTXBuffer[m_vsizeTXBufferHead] = ui8Data;
m_vsizeTXBufferHead = sizeIndex;
if( !( SREG & ( 1 << SREG_I ) ) )
{
while( !( *m_vui8pUCSRA & ( 1 << UDRE_D ) ) );
transmitInterruptHandler();
}
else
{
setUDREInterrupt( true );
}
}
//////////////////////////////////////////////////////////////////////////
void USART0::transmitString( const char *szString )
{
while( *szString )
{
transmitByte( *szString++ );
}
}
//////////////////////////////////////////////////////////////////////////
void USART0::flushTransmit()
{
while( m_vsizeTXBufferHead != m_vsizeTXBufferTail && !( *m_vui8pUCSRA & ( 1 << UDRE_D ) ) );
}
//////////////////////////////////////////////////////////////////////////
void USART0::receiveInterruptHandler()
{
uint8_t ui8ReceivedByte = *m_vui8pUDR;
size_t sizeIndex = ( m_vsizeRXBufferHead + 1 ) % sm_sizeRXBUFFER_SIZE;
if( sizeIndex != m_vsizeRXBufferTail )
{
m_vui8aRXBuffer[m_vsizeRXBufferHead] = ui8ReceivedByte;
m_vsizeRXBufferHead = sizeIndex;
}
}
//////////////////////////////////////////////////////////////////////////
void USART0::transmitInterruptHandler()
{
uint8_t ui8TransmitByte = m_vui8aTXBuffer[m_vsizeTXBufferTail];
m_vsizeTXBufferTail = ( m_vsizeTXBufferTail + 1 ) % sm_sizeTXBUFFER_SIZE;
*m_vui8pUDR = ui8TransmitByte;
if( m_vsizeTXBufferHead == m_vsizeTXBufferTail )
{
setUDREInterrupt( false );
}
}
//////////////////////////////////////////////////////////////////////////
ISR( USART0_RX_vect_D )
{
USART0::inst().receiveInterruptHandler();
}
//////////////////////////////////////////////////////////////////////////
ISR( USART0_UDRE_vect_D )
{
USART0::inst().transmitInterruptHandler();
}
/************************************************************************/
/************************************************************************/
#ifdef SECOND_USART
//////////////////////////////////////////////////////////////////////////
USART1 USART1::sm_cInstance;
//////////////////////////////////////////////////////////////////////////
USART1& USART1::inst()
{
return sm_cInstance;
}
//////////////////////////////////////////////////////////////////////////
USART1::USART1()
{
m_vui8pUCSRA = &UCSR1A;
m_vui8pUCSRB = &UCSR1B;
m_vui8pUCSRC = &UCSR1C;
m_vui8pUBRRH = &UBRR1H;
m_vui8pUBRRL = &UBRR1L;
m_vui8pUDR = &UDR1;
}
//////////////////////////////////////////////////////////////////////////
ISR( USART1_RX_vect_D )
{
USART1::inst().receiveInterruptHandler();
}
//////////////////////////////////////////////////////////////////////////
ISR( USART1_UDRE_vect_D )
{
USART1::inst().transmitInterruptHandler();
}
#endif

185
usart.h
View File

@@ -1,185 +0,0 @@
/*
* Copyright (c) by BlackMark 2015-2018
* Date 12/04/2018
* Version 3.4
*/
#ifndef USART_H
#define USART_H
#include <avr/io.h>
#include <avr/interrupt.h>
#include <stdint.h>
#include <string.h>
#include "../clock.h"
#if defined (__AVR_ATmega168A__) || defined (__AVR_ATmega328P__) || defined (__AVR_ATmega644P__)
#define USART_SPI
#define USART0_RX_vect_D USART_RX_vect
#define USART0_UDRE_vect_D USART_UDRE_vect
#endif
#if defined (__AVR_ATmega32A__) || (__AVR_ATmega8__) || (__AVR_ATmega8A__)
#define USART_SHAREDIO
#define USART0_RX_vect_D USART_RXC_vect
#define USART0_UDRE_vect_D USART_UDRE_vect
#endif
#if defined (__AVR_ATmega1284P__)
#define USART_SPI
#define SECOND_USART
#define USART0_RX_vect_D USART0_RX_vect
#define USART1_RX_vect_D USART1_RX_vect
#define USART0_UDRE_vect_D USART0_UDRE_vect
#define USART1_UDRE_vect_D USART1_UDRE_vect
#endif
#ifdef USART_SHAREDIO
#define RXEN_D RXEN
#define TXEN_D TXEN
#define RXCIE_D RXCIE
#define UDRIE_D UDRIE
#define UCSZ0_D UCSZ0
#define UCSZ1_D UCSZ1
#define UCSZ2_D UCSZ2
#define UPM0_D UPM0
#define UPM1_D UPM1
#define USBS_D USBS
#define RXC_D RXC
#define UDRE_D UDRE
#else
#define RXEN_D RXEN0
#define TXEN_D TXEN0
#define RXCIE_D RXCIE0
#define UDRIE_D UDRIE0
#define UCSZ0_D UCSZ00
#define UCSZ1_D UCSZ01
#define UCSZ2_D UCSZ02
#define UPM0_D UPM00
#define UPM1_D UPM01
#define USBS_D USBS0
#define RXC_D RXC0
#define UDRE_D UDRE0
#endif
#ifdef USART_SPI
#define UMSEL0_D UMSEL00
#define UMSEL1_D UMSEL01
#else
#define UMSEL_D UMSEL
#endif
class USART0
{
public:
enum class Mode
{
ASYNCHRONOUS = 0,
SYNCHRONOUS = 1,
#ifdef USART_SPI
MASTERSPI = 2
#endif
};
enum class Parity
{
DISABLED = 0,
ODD = 1,
EVEN = 2
};
enum class StopBit
{
ONE = 1,
TWO = 2
};
static constexpr size_t sm_sizeRXBUFFER_SIZE = 16;
static constexpr size_t sm_sizeTXBUFFER_SIZE = 16;
protected:
volatile uint8_t *m_vui8pUCSRA;
volatile uint8_t *m_vui8pUCSRB;
volatile uint8_t *m_vui8pUCSRC;
volatile uint8_t *m_vui8pUBRRH;
volatile uint8_t *m_vui8pUBRRL;
volatile uint8_t *m_vui8pUDR;
volatile size_t m_vsizeRXBufferHead;
volatile size_t m_vsizeRXBufferTail;
volatile size_t m_vsizeTXBufferHead;
volatile size_t m_vsizeTXBufferTail;
volatile uint8_t m_vui8aRXBuffer[sm_sizeRXBUFFER_SIZE];
volatile uint8_t m_vui8aTXBuffer[sm_sizeTXBUFFER_SIZE];
USART0();
private:
static USART0 sm_cInstance;
uint8_t readUCSRC();
void setUCSRC( uint8_t ui8UCSRC );
void setRXState( bool bEnable );
void setTXState( bool bEnable );
void setRXInterrupt( bool bEnable );
void setUDREInterrupt( bool bEnable );
void setBaudRate( uint32_t ui32BaudRate );
void setDataBits( uint8_t ui8DataBits );
void setParity( Parity enmParity );
void setStopBits( StopBit enmStopBits );
void setMode( Mode enmMode );
uint32_t getBaudRate();
uint8_t getDataBits();
Parity getParity();
StopBit getStopBits();
public:
~USART0();
static USART0& inst();
USART0( const USART0& ) = delete;
void operator=( const USART0& ) = delete;
void init( uint32_t ui32BaudRate = 9600, uint8_t ui8DataBits = 8, Parity enmParity = Parity::DISABLED, StopBit enmStopBits = StopBit::ONE, Mode enmMode = Mode::ASYNCHRONOUS );
bool receiveByte( uint8_t &ui8Data );
bool receiveByte( uint8_t &ui8Data, uint16_t ui16TimeoutMS );
uint8_t receiveByteBlocked();
uint8_t receivePeek();
bool receiveLine( char *szBuffer, size_t sizeBufferLength, const char *szLineTerminator = "\r\n" );
bool receiveLine( char *szBuffer, size_t sizeBufferLength, uint16_t ui16TimeoutMS, const char *szLineTerminator = "\r\n" );
void flushReceive();
void transmitByte( uint8_t ui8Data );
void transmitString( const char *szString );
void flushTransmit();
void receiveInterruptHandler();
void transmitInterruptHandler();
inline USART0& operator<<( const char *szString )
{
transmitString( szString );
return *this;
}
};
#ifdef SECOND_USART
class USART1 : public USART0
{
public:
static USART1& inst();
USART1( const USART1& ) = delete;
void operator=( const USART1& ) = delete;
private:
static USART1 sm_cInstance;
USART1();
};
#endif
#endif

142
utils.hpp Normal file
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@@ -0,0 +1,142 @@
#pragma once
// Fix for limits.h not exposing LLONG_MIN, LLONG_MIN, and ULLONG_MAX to C++ context
#ifdef __cplusplus
#define __STDC_VERSION__ 201112L
#endif
#include <limits.h>
namespace uart {
namespace util {
// clang-format off
template <bool Val> struct set_bool { static constexpr auto value = Val; };
struct true_type : set_bool<true> {};
struct false_type : set_bool<false> {};
template <typename...> struct always_false : false_type {};
template <typename... Ts> static constexpr auto always_false_v = always_false<Ts...>::value;
template <typename T> struct is_integral : false_type {};
template <> struct is_integral<bool> : true_type {};
template <> struct is_integral<char> : true_type {};
template <> struct is_integral<signed char> : true_type {};
template <> struct is_integral<unsigned char> : true_type {};
template <> struct is_integral<short> : true_type {};
template <> struct is_integral<int> : true_type {};
template <> struct is_integral<long int> : true_type {};
template <> struct is_integral<long long int> : true_type {};
template <> struct is_integral<unsigned short> : true_type {};
template <> struct is_integral<unsigned int> : true_type {};
template <> struct is_integral<unsigned long int> : true_type {};
template <> struct is_integral<unsigned long long int> : true_type {};
template <typename T> static constexpr auto is_integral_v = is_integral<T>::value;
template <typename T, typename U> struct is_same : false_type {};
template <typename T> struct is_same<T, T> : true_type {};
template <typename T, typename U> static constexpr auto is_same_v = is_same<T, U>::value;
template <typename T>
struct NumericLimits {
static constexpr T min() { return T(); }
static constexpr T max() { return T(); }
};
template <>
struct NumericLimits<bool> {
static constexpr bool min() { return false; }
static constexpr bool max() { return true; }
};
template <>
struct NumericLimits<char> {
static constexpr char min() { return CHAR_MIN; }
static constexpr char max() { return CHAR_MAX; }
};
template <>
struct NumericLimits<signed char> {
static constexpr signed char min() { return SCHAR_MIN; }
static constexpr signed char max() { return SCHAR_MAX; }
};
template <>
struct NumericLimits<unsigned char> {
static constexpr unsigned char min() { return 0; }
static constexpr unsigned char max() { return UCHAR_MAX; }
};
template <>
struct NumericLimits<short> {
static constexpr short min() { return SHRT_MIN; }
static constexpr short max() { return SHRT_MAX; }
};
template <>
struct NumericLimits<int> {
static constexpr int min() { return INT_MIN; }
static constexpr int max() { return INT_MAX; }
};
template <>
struct NumericLimits<long> {
static constexpr long int min() { return LONG_MIN; }
static constexpr long int max() { return LONG_MAX; }
};
template <>
struct NumericLimits<long long int> {
static constexpr long long int min() { return LLONG_MIN; }
static constexpr long long int max() { return LLONG_MAX; }
};
template <>
struct NumericLimits<unsigned short> {
static constexpr unsigned short min() { return 0; }
static constexpr unsigned short max() { return USHRT_MAX; }
};
template <>
struct NumericLimits<unsigned int> {
static constexpr unsigned int min() { return 0; }
static constexpr unsigned int max() { return UINT_MAX; }
};
template <>
struct NumericLimits<unsigned long int> {
static constexpr unsigned long int min() { return 0; }
static constexpr unsigned long int max() { return ULONG_MAX; }
};
template <>
struct NumericLimits<unsigned long long int> {
static constexpr unsigned long long int min() { return 0; }
static constexpr unsigned long long int max() { return ULLONG_MAX; }
};
template <>
struct NumericLimits<float> {
template <typename... Ts> static constexpr float min() { static_assert(always_false_v<Ts...>, "Not implemented"); return 0; }
template <typename... Ts> static constexpr float max() { static_assert(always_false_v<Ts...>, "Not implemented"); return 0; }
};
template <>
struct NumericLimits<double> {
template <typename... Ts> static constexpr double min() { static_assert(always_false_v<Ts...>, "Not implemented"); return 0; }
template <typename... Ts> static constexpr double max() { static_assert(always_false_v<Ts...>, "Not implemented"); return 0; }
};
template <>
struct NumericLimits<long double> {
template <typename... Ts> static constexpr long double min() { static_assert(always_false_v<Ts...>, "Not implemented"); return 0; }
template <typename... Ts> static constexpr long double max() { static_assert(always_false_v<Ts...>, "Not implemented"); return 0; }
};
// clang-format on
} // namespace util
} // namespace uart