Refactor eink driver
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08dd1073af
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149
eink.hpp
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149
eink.hpp
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#pragma once
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#include <stdint.h>
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#include <avr/pgmspace.h>
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#include "../clock.hpp"
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#include "../io/io.hpp"
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template <typename Spi>
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class Epd {
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static constexpr auto width = uint16_t{200};
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static constexpr auto height = uint16_t{200};
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io::Pin<io::P::C1> m_rst;
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io::Pin<io::P::C0> m_dc;
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io::Pin<io::P::C2> m_bsy;
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public:
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Epd() = default;
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~Epd() = default;
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int Init()
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{
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m_rst.dir(io::Dir::OUT);
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m_dc.dir(io::Dir::OUT);
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m_bsy.dir(io::Dir::IN);
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Spi::init();
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/* EPD hardware init start */
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Reset();
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WaitUntilIdle();
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SendCommand(0x12); // SWRESET
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WaitUntilIdle();
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SendCommand(0x01); // Driver output control
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SendData(0xC7);
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SendData(0x00);
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SendData(0x01);
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SendCommand(0x11); // data entry mode
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SendData(0x01);
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SendCommand(0x44); // set Ram-X address start/end position
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SendData(0x00);
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SendData(0x18); // 0x18-->(24+1)*8=200
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SendCommand(0x45); // set Ram-Y address start/end position
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SendData(0xC7); // 0xC7-->(199+1)=200
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SendData(0x00);
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SendData(0x00);
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SendData(0x00);
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SendCommand(0x3C); // BorderWavefrom
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SendData(0x05);
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SendCommand(0x18); // Read built-in temperature sensor
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SendData(0x80);
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SendCommand(0x4E); // set RAM x address count to 0;
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SendData(0x00);
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SendCommand(0x4F); // set RAM y address count to 0X199;
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SendData(0xC7);
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SendData(0x00);
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WaitUntilIdle();
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/* EPD hardware init end */
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return 0;
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}
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void SendCommand(unsigned char command)
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{
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m_dc = false;
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SpiTransfer(command);
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}
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void SendData(unsigned char data)
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{
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m_dc = true;
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SpiTransfer(data);
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}
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void WaitUntilIdle()
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{
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while (m_bsy) {
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_delay_ms(100);
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}
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}
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void Reset()
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{
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m_rst = true;
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_delay_ms(200);
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m_rst = false; // module reset
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_delay_ms(10);
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m_rst = true;
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_delay_ms(200);
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}
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void DisplayFrame(const unsigned char *frame_buffer_black, const unsigned char *frame_buffer_red)
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{
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SendCommand(0x24);
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for (auto i = uint16_t{0}; i < width * height / 8; i++) {
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SendData(pgm_read_byte(&frame_buffer_black[i]));
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}
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SendCommand(0x26);
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for (auto i = uint16_t{0}; i < width * height / 8; i++) {
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SendData(~pgm_read_byte(&frame_buffer_red[i]));
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}
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SendCommand(0x22);
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SendData(0xF7);
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SendCommand(0x20);
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WaitUntilIdle();
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}
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void DisplayClear()
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{
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SendCommand(0x24);
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for (auto i = uint16_t{0}; i < width * height / 8; i++) {
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SendData(0xff);
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}
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SendCommand(0x26);
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for (auto i = uint16_t{0}; i < width * height / 8; i++) {
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SendData(0x00);
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}
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SendCommand(0x22);
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SendData(0xF7);
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SendCommand(0x20);
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WaitUntilIdle();
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}
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void Sleep()
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{
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SendCommand(0x10); // power setting
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SendData(0x01); // gate switch to external
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_delay_ms(100);
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}
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void SpiTransfer(unsigned char data)
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{
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Spi::select(true);
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Spi::transfer(data);
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Spi::select(false);
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}
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};
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224
epd1in54b_V2.h
224
epd1in54b_V2.h
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/**
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* @filename : epd1in54b.h
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* @brief : Header file for e-paper display library epd1in54b.cpp
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* @author : Yehui from Waveshare
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*
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* Copyright (C) Waveshare August 10 2017
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documnetation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef EPD1IN54B_H
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#define EPD1IN54B_H
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#include <avr/pgmspace.h>
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#include "../clock.hpp"
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#include "../io/io.hpp"
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// Display resolution
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#define EPD_WIDTH 200
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#define EPD_HEIGHT 200
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// EPD1IN54B commands
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#define PANEL_SETTING 0x00
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#define POWER_SETTING 0x01
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#define POWER_OFF 0x02
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#define POWER_OFF_SEQUENCE_SETTING 0x03
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#define POWER_ON 0x04
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#define POWER_ON_MEASURE 0x05
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#define BOOSTER_SOFT_START 0x06
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#define DEEP_SLEEP 0x07
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#define DATA_START_TRANSMISSION_1 0x10
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#define DATA_STOP 0x11
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#define DISPLAY_REFRESH 0x12
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#define DATA_START_TRANSMISSION_2 0x13
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#define PLL_CONTROL 0x30
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#define TEMPERATURE_SENSOR_COMMAND 0x40
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#define TEMPERATURE_SENSOR_CALIBRATION 0x41
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#define TEMPERATURE_SENSOR_WRITE 0x42
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#define TEMPERATURE_SENSOR_READ 0x43
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#define VCOM_AND_DATA_INTERVAL_SETTING 0x50
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#define LOW_POWER_DETECTION 0x51
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#define TCON_SETTING 0x60
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#define TCON_RESOLUTION 0x61
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#define SOURCE_AND_GATE_START_SETTING 0x62
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#define GET_STATUS 0x71
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#define AUTO_MEASURE_VCOM 0x80
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#define VCOM_VALUE 0x81
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#define VCM_DC_SETTING_REGISTER 0x82
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#define PROGRAM_MODE 0xA0
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#define ACTIVE_PROGRAM 0xA1
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#define READ_OTP_DATA 0xA2
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// Pin definition
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#define RST_PIN io::P::C1
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#define DC_PIN io::P::C0
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#define BUSY_PIN io::P::C2
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template <typename Spi>
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class Epd {
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public:
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unsigned long width;
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unsigned long height;
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Epd()
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{
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width = EPD_WIDTH;
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height = EPD_HEIGHT;
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}
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~Epd() = default;
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int Init()
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{
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/* this calls the peripheral hardware interface, see epdif */
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io::Pin<RST_PIN>::dir(io::Dir::OUT);
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io::Pin<DC_PIN>::dir(io::Dir::OUT);
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io::Pin<BUSY_PIN>::dir(io::Dir::IN);
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Spi::init();
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/* EPD hardware init start */
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Reset();
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WaitUntilIdle();
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SendCommand(0x12); // SWRESET
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WaitUntilIdle();
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SendCommand(0x01); // Driver output control
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SendData(0xC7);
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SendData(0x00);
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SendData(0x01);
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SendCommand(0x11); // data entry mode
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SendData(0x01);
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SendCommand(0x44); // set Ram-X address start/end position
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SendData(0x00);
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SendData(0x18); // 0x18-->(24+1)*8=200
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SendCommand(0x45); // set Ram-Y address start/end position
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SendData(0xC7); // 0xC7-->(199+1)=200
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SendData(0x00);
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SendData(0x00);
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SendData(0x00);
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SendCommand(0x3C); // BorderWavefrom
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SendData(0x05);
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SendCommand(0x18); // Read built-in temperature sensor
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SendData(0x80);
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SendCommand(0x4E); // set RAM x address count to 0;
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SendData(0x00);
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SendCommand(0x4F); // set RAM y address count to 0X199;
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SendData(0xC7);
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SendData(0x00);
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WaitUntilIdle();
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/* EPD hardware init end */
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return 0;
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}
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void SendCommand(unsigned char command)
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{
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io::Pin<DC_PIN>::write(false);
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SpiTransfer(command);
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}
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void SendData(unsigned char data)
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{
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io::Pin<DC_PIN>::write(true);
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SpiTransfer(data);
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}
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void WaitUntilIdle()
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{
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while (io::Pin<BUSY_PIN>::read()) {
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_delay_ms(100);
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}
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}
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void Reset()
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{
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io::Pin<RST_PIN>::write(true);
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_delay_ms(200);
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io::Pin<RST_PIN>::write(false); // module reset
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_delay_ms(10);
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io::Pin<RST_PIN>::write(true);
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_delay_ms(200);
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}
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void DisplayFrame(const unsigned char *frame_buffer_black, const unsigned char *frame_buffer_red)
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{
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unsigned int i;
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SendCommand(0x24);
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for (i = 0; i < this->width * this->height / 8; i++) {
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SendData(pgm_read_byte(&frame_buffer_black[i]));
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}
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SendCommand(0x26);
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for (i = 0; i < this->width * this->height / 8; i++) {
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SendData(~pgm_read_byte(&frame_buffer_red[i]));
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}
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SendCommand(0x22);
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SendData(0xF7);
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SendCommand(0x20);
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WaitUntilIdle();
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}
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void DisplayClear()
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{
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unsigned int i;
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SendCommand(0x24);
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for (i = 0; i < this->width * this->height / 8; i++) {
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SendData(0xff);
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}
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SendCommand(0x26);
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for (i = 0; i < this->width * this->height / 8; i++) {
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SendData(0x00);
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}
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SendCommand(0x22);
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SendData(0xF7);
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SendCommand(0x20);
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WaitUntilIdle();
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}
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void Sleep()
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{
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SendCommand(0x10); // power setting
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SendData(0x01); // gate switch to external
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_delay_ms(100);
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}
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void SpiTransfer(unsigned char data)
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{
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Spi::select(true);
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Spi::transfer(data);
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Spi::select(false);
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}
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};
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#endif /* EPD1IN54B_H */
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/* END OF FILE */
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