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Added example project

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This commit is contained in:
BlackMark 2020-02-21 16:44:34 +01:00
parent 7a1761e054
commit 623b968aff
11 changed files with 279 additions and 239 deletions
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13
.clang-format Normal file
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---
BasedOnStyle: LLVM
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UseTab: ForIndentation
AlignEscapedNewlines: DontAlign
AllowShortFunctionsOnASingleLine: Empty
AlwaysBreakTemplateDeclarations: true
BreakBeforeBraces: Custom
BraceWrapping:
AfterFunction: true
...

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.gitignore vendored
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.vs
*/Release
*/Debug
Release
Debug
*.componentinfo.xml
*/avrdude.bat
*.elf
*.o
*.hex
*.srec
*.eeprom
*.lss
*.map

3
.gitmodules vendored Normal file
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[submodule "spi/spi"]
path = spi/spi
url = git@git.blackmark.me:avr/spi.git

21
LICENSE Normal file
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MIT License
Copyright (c) 2020 BlackMark
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is furnished
to do so, subject to the following conditions:
The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

22
spi.atsln Normal file
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Microsoft Visual Studio Solution File, Format Version 12.00
# Atmel Studio Solution File, Format Version 11.00
VisualStudioVersion = 14.0.23107.0
MinimumVisualStudioVersion = 10.0.40219.1
Project("{E66E83B9-2572-4076-B26E-6BE79FF3018A}") = "spi", "spi\spi.cppproj", "{DCE6C7E3-EE26-4D79-826B-08594B9AD897}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|AVR = Debug|AVR
Release|AVR = Release|AVR
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{DCE6C7E3-EE26-4D79-826B-08594B9AD897}.Debug|AVR.ActiveCfg = Debug|AVR
{DCE6C7E3-EE26-4D79-826B-08594B9AD897}.Debug|AVR.Build.0 = Debug|AVR
{DCE6C7E3-EE26-4D79-826B-08594B9AD897}.Release|AVR.ActiveCfg = Release|AVR
{DCE6C7E3-EE26-4D79-826B-08594B9AD897}.Release|AVR.Build.0 = Release|AVR
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
EndGlobal

172
spi.cpp
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#include "spi.h"
//////////////////////////////////////////////////////////////////////////
InOutPin SPI::sm_cSCK;
InOutPin SPI::sm_cMISO;
InOutPin SPI::sm_cMOSI;
InOutPin SPI::sm_cSS;
//////////////////////////////////////////////////////////////////////////
void SPI::setCPOL( bool bCPOL )
{
if( bCPOL )
{
SPCR |= ( 1 << CPOL );
}
else
{
SPCR &= ~( 1 << CPOL );
}
}
//////////////////////////////////////////////////////////////////////////
void SPI::setCPHA( bool bCPHA )
{
if( bCPHA )
{
SPCR |= ( 1 << CPHA );
}
else
{
SPCR &= ~( 1 << CPHA );
}
}
//////////////////////////////////////////////////////////////////////////
void SPI::init( ClockDiv enmClockDiv /* = ClockDiv::CLKDIV_128 */, Mode enmMode /* = Mode::MODE_0 */, bool bMaster /* = true */, bool bLSBFirst /* = false */, bool bMISOPullup /* = false */ )
{
sm_cSCK.setPin( sm_enmSCK );
sm_cMISO.setPin( sm_enmMISO );
sm_cMOSI.setPin( sm_enmMOSI );
sm_cSS.setPin( sm_enmSS );
if( bMaster )
{
sm_cSS.write( true );
sm_cSCK.setDirection( InOut::Dir::D_OUT, false );
sm_cMISO.setDirection( InOut::Dir::D_IN, bMISOPullup );
sm_cMOSI.setDirection( InOut::Dir::D_OUT, false );
sm_cSS.setDirection( InOut::Dir::D_OUT, false );
}
else
{
sm_cSCK.setDirection( InOut::Dir::D_IN, false );
sm_cMISO.setDirection( InOut::Dir::D_OUT, false );
sm_cMOSI.setDirection( InOut::Dir::D_IN, false );
sm_cSS.setDirection( InOut::Dir::D_IN, true );
}
setClockDiv( enmClockDiv );
setMode( enmMode );
setMaster( bMaster );
setBitOrder( bLSBFirst );
SPCR |= ( 1 << SPE );
}
//////////////////////////////////////////////////////////////////////////
void SPI::deinit()
{
SPCR = 0;
sm_cSCK.setDirection( InOut::Dir::D_IN, false );
sm_cMISO.setDirection( InOut::Dir::D_IN, false );
sm_cMOSI.setDirection( InOut::Dir::D_IN, false );
sm_cSS.setDirection( InOut::Dir::D_IN, false );
}
//////////////////////////////////////////////////////////////////////////
void SPI::setClockDiv( ClockDiv enmClockDiv )
{
uint8_t ui8ClockDiv = static_cast<uint8_t>( enmClockDiv );
if( ui8ClockDiv & 1 )
{
SPCR |= ( 1 << SPR0 );
}
else
{
SPCR &= ~( 1 << SPR0 );
}
if( ui8ClockDiv & ( 1 << 1 ) )
{
SPCR |= ( 1 << SPR1 );
}
else
{
SPCR &= ~( 1 << SPR1 );
}
if( ui8ClockDiv & ( 1 << 2 ) )
{
SPSR |= ( 1 << SPI2X );
}
else
{
SPSR &= ~( 1 << SPI2X );
}
}
//////////////////////////////////////////////////////////////////////////
void SPI::setMode( Mode enmMode )
{
if( enmMode == Mode::MODE_0 || enmMode == Mode::MODE_1 )
{
setCPOL( false );
}
else
{
setCPOL( true );
}
if( enmMode == Mode::MODE_0 || enmMode == Mode::MODE_2 )
{
setCPHA( false );
}
else
{
setCPHA( true );
}
}
//////////////////////////////////////////////////////////////////////////
void SPI::setMaster( bool bMaster )
{
if( bMaster )
{
SPCR |= ( 1 << MSTR );
}
else
{
SPCR &= ~( 1 << MSTR );
}
}
//////////////////////////////////////////////////////////////////////////
void SPI::setBitOrder( bool bLSBFirst )
{
if( bLSBFirst )
{
SPCR |= ( 1 << DORD );
}
else
{
SPCR &= ~( 1 << DORD );
}
}
//////////////////////////////////////////////////////////////////////////
uint8_t SPI::transfer( uint8_t ui8Data )
{
SPDR = ui8Data;
while( !( SPSR & ( 1 << SPIF ) ) );
return SPDR;
}
//////////////////////////////////////////////////////////////////////////
void SPI::select( bool bSelect )
{
sm_cSS.write( !bSelect );
}

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spi.h
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/*
* Copyright (c) by BlackMark 2016-2017
* Date 17/09/2017
* Version 1.4
*/
#ifndef SPI_H
#define SPI_H
#include <avr/io.h>
#include "../inout/inout.h"
class SPI
{
public:
enum class ClockDiv
{
CLKDIV_4 = 0,
CLKDIV_16 = 1,
CLKDIV_64 = 2,
CLKDIV_128 = 3,
CLKDIV_2X_2 = 4,
CLKDIV_2X_8 = 5,
CLKDIV_2X_32 = 6,
CLKDIV_2X_64 = 7
};
enum class Mode
{
MODE_0 = 0,
MODE_1 = 1,
MODE_2 = 2,
MODE_3 = 3
};
private:
static void setCPOL( bool bCPOL );
static void setCPHA( bool bCPHA );
static constexpr InOut::Pin sm_enmSCK = InOut::Pin::P_B5;
static constexpr InOut::Pin sm_enmMISO = InOut::Pin::P_B4;
static constexpr InOut::Pin sm_enmMOSI = InOut::Pin::P_B3;
static constexpr InOut::Pin sm_enmSS = InOut::Pin::P_B2;
static InOutPin sm_cSCK;
static InOutPin sm_cMISO;
static InOutPin sm_cMOSI;
static InOutPin sm_cSS;
public:
static void init( ClockDiv enmClockDiv = ClockDiv::CLKDIV_128, Mode enmMode = Mode::MODE_0, bool bMaster = true, bool bLSBFirst = false, bool bMISOPullup = false );
static void deinit();
static void setClockDiv( ClockDiv enmClockDiv );
static void setMode( Mode enmMode );
static void setMaster( bool bMaster );
static void setBitOrder( bool bLSBFirst );
static uint8_t transfer( uint8_t ui8Data );
static void select( bool bSelect );
};
#endif

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spi/clock.hpp Normal file
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#pragma once
#define F_CPU 16000000
#include <util/delay.h>

10
spi/main.cpp Normal file
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#include "clock.hpp"
void spiTest() {}
int main()
{
spiTest();
return 0;
}

1
spi/spi Submodule

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Subproject commit 7a1761e054faf44d168557406873434fff47a5ac

196
spi/spi.cppproj Normal file
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<?xml version="1.0" encoding="utf-8"?>
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<ProjectGuid>dce6c7e3-ee26-4d79-826b-08594b9ad897</ProjectGuid>
<avrdevice>ATmega328P</avrdevice>
<avrdeviceseries>none</avrdeviceseries>
<OutputType>Executable</OutputType>
<Language>CPP</Language>
<OutputFileName>$(MSBuildProjectName)</OutputFileName>
<OutputFileExtension>.elf</OutputFileExtension>
<OutputDirectory>$(MSBuildProjectDirectory)\$(Configuration)</OutputDirectory>
<AssemblyName>spi</AssemblyName>
<Name>spi</Name>
<RootNamespace>spi</RootNamespace>
<ToolchainFlavour>avr-g++-9.1.0</ToolchainFlavour>
<KeepTimersRunning>true</KeepTimersRunning>
<OverrideVtor>false</OverrideVtor>
<CacheFlash>true</CacheFlash>
<ProgFlashFromRam>true</ProgFlashFromRam>
<RamSnippetAddress>0x20000000</RamSnippetAddress>
<UncachedRange />
<preserveEEPROM>true</preserveEEPROM>
<OverrideVtorValue>exception_table</OverrideVtorValue>
<BootSegment>2</BootSegment>
<ResetRule>0</ResetRule>
<eraseonlaunchrule>0</eraseonlaunchrule>
<EraseKey />
<avrtool>com.atmel.avrdbg.tool.stk500</avrtool>
<avrtoolserialnumber />
<avrdeviceexpectedsignature>0x1E950F</avrdeviceexpectedsignature>
<com_atmel_avrdbg_tool_stk500>
<ToolOptions>
<InterfaceProperties>
<IspClock>125000</IspClock>
</InterfaceProperties>
<InterfaceName>ISP</InterfaceName>
</ToolOptions>
<ToolType>com.atmel.avrdbg.tool.stk500</ToolType>
<ToolNumber>
</ToolNumber>
<ToolName>STK500</ToolName>
</com_atmel_avrdbg_tool_stk500>
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<avrtoolinterfaceclock>125000</avrtoolinterfaceclock>
<AsfFrameworkConfig>
<framework-data xmlns="">
<options />
<configurations />
<files />
<documentation help="" />
<offline-documentation help="" />
<dependencies>
<content-extension eid="atmel.asf" uuidref="Atmel.ASF" version="3.47.0" />
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</framework-data>
</AsfFrameworkConfig>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
<ToolchainSettings>
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</Compile>
<Compile Include="spi\spi.cpp">
<SubType>compile</SubType>
</Compile>
<Compile Include="spi\spi.h">
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</Compile>
</ItemGroup>
<ItemGroup>
<Folder Include="spi" />
</ItemGroup>
<Import Project="$(AVRSTUDIO_EXE_PATH)\\Vs\\Compiler.targets" />
</Project>