150 lines
2.7 KiB
C++
150 lines
2.7 KiB
C++
#pragma once
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <avr/pgmspace.h>
|
|
|
|
#include "../clock.hpp"
|
|
#include "../io/io.hpp"
|
|
|
|
template <typename Spi>
|
|
class Epd {
|
|
static constexpr auto width = uint16_t{200};
|
|
static constexpr auto height = uint16_t{200};
|
|
|
|
io::Pin<io::P::C1> m_rst;
|
|
io::Pin<io::P::C0> m_dc;
|
|
io::Pin<io::P::C2> m_bsy;
|
|
|
|
public:
|
|
Epd() = default;
|
|
~Epd() = default;
|
|
|
|
int Init()
|
|
{
|
|
m_rst.dir(io::Dir::OUT);
|
|
m_dc.dir(io::Dir::OUT);
|
|
m_bsy.dir(io::Dir::IN);
|
|
Spi::init();
|
|
|
|
/* EPD hardware init start */
|
|
Reset();
|
|
|
|
WaitUntilIdle();
|
|
SendCommand(0x12); // SWRESET
|
|
WaitUntilIdle();
|
|
|
|
SendCommand(0x01); // Driver output control
|
|
SendData(0xC7);
|
|
SendData(0x00);
|
|
SendData(0x01);
|
|
|
|
SendCommand(0x11); // data entry mode
|
|
SendData(0x01);
|
|
|
|
SendCommand(0x44); // set Ram-X address start/end position
|
|
SendData(0x00);
|
|
SendData(0x18); // 0x18-->(24+1)*8=200
|
|
|
|
SendCommand(0x45); // set Ram-Y address start/end position
|
|
SendData(0xC7); // 0xC7-->(199+1)=200
|
|
SendData(0x00);
|
|
SendData(0x00);
|
|
SendData(0x00);
|
|
|
|
SendCommand(0x3C); // BorderWavefrom
|
|
SendData(0x05);
|
|
|
|
SendCommand(0x18); // Read built-in temperature sensor
|
|
SendData(0x80);
|
|
|
|
SendCommand(0x4E); // set RAM x address count to 0;
|
|
SendData(0x00);
|
|
SendCommand(0x4F); // set RAM y address count to 0X199;
|
|
SendData(0xC7);
|
|
SendData(0x00);
|
|
WaitUntilIdle();
|
|
|
|
/* EPD hardware init end */
|
|
|
|
return 0;
|
|
}
|
|
|
|
void SendCommand(unsigned char command)
|
|
{
|
|
m_dc = false;
|
|
SpiTransfer(command);
|
|
}
|
|
|
|
void SendData(unsigned char data)
|
|
{
|
|
m_dc = true;
|
|
SpiTransfer(data);
|
|
}
|
|
|
|
void WaitUntilIdle()
|
|
{
|
|
while (m_bsy) {
|
|
_delay_ms(100);
|
|
}
|
|
}
|
|
|
|
void Reset()
|
|
{
|
|
m_rst = true;
|
|
_delay_ms(200);
|
|
m_rst = false; // module reset
|
|
_delay_ms(10);
|
|
m_rst = true;
|
|
_delay_ms(200);
|
|
}
|
|
|
|
void DisplayFrame(const unsigned char *frame_buffer_black, const unsigned char *frame_buffer_red)
|
|
{
|
|
SendCommand(0x24);
|
|
for (auto i = uint16_t{0}; i < width * height / 8; i++) {
|
|
SendData(pgm_read_byte(&frame_buffer_black[i]));
|
|
}
|
|
SendCommand(0x26);
|
|
for (auto i = uint16_t{0}; i < width * height / 8; i++) {
|
|
SendData(~pgm_read_byte(&frame_buffer_red[i]));
|
|
}
|
|
|
|
SendCommand(0x22);
|
|
SendData(0xF7);
|
|
SendCommand(0x20);
|
|
WaitUntilIdle();
|
|
}
|
|
|
|
void DisplayClear()
|
|
{
|
|
SendCommand(0x24);
|
|
for (auto i = uint16_t{0}; i < width * height / 8; i++) {
|
|
SendData(0xff);
|
|
}
|
|
SendCommand(0x26);
|
|
for (auto i = uint16_t{0}; i < width * height / 8; i++) {
|
|
SendData(0x00);
|
|
}
|
|
|
|
SendCommand(0x22);
|
|
SendData(0xF7);
|
|
SendCommand(0x20);
|
|
WaitUntilIdle();
|
|
}
|
|
|
|
void Sleep()
|
|
{
|
|
SendCommand(0x10); // power setting
|
|
SendData(0x01); // gate switch to external
|
|
_delay_ms(100);
|
|
}
|
|
|
|
void SpiTransfer(unsigned char data)
|
|
{
|
|
Spi::select(true);
|
|
Spi::transfer(data);
|
|
Spi::select(false);
|
|
}
|
|
};
|