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259 lines
9.0 KiB
C
259 lines
9.0 KiB
C
/*****************************************************************************
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* | File : EPD_2IN13.c
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* | Author : Waveshare team
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* | Function : 2.13inch e-paper
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* | Info :
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*----------------
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* | This version: V3.0
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* | Date : 2019-06-12
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* | Info :
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* -----------------------------------------------------------------------------
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* V3.0(2019-06-12):
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* 1.Change:
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* EPD_Reset() => EPD_2IN13_Reset()
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* EPD_SendCommand() => EPD_2IN13_SendCommand()
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* EPD_SendData() => EPD_2IN13_SendData()
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* EPD_WaitUntilIdle() => EPD_2IN13_ReadBusy()
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* EPD_Init() => EPD_2IN13_Init()
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* EPD_Clear() => EPD_2IN13_Clear()
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* EPD_Display() => EPD_2IN13_Display()
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* EPD_Sleep() => EPD_2IN13_Sleep()
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* -----------------------------------------------------------------------------
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* V2.0(2019-01-03):
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* 1.Remove:ImageBuff[EPD_2IN13_HEIGHT * EPD_2IN13_WIDTH / 8]
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* 2.Change:EPD_Display(UBYTE *Image)
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* Need to pass parameters: pointer to cached data
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* 3.Change:
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* EPD_RST -> EPD_RST_PIN
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* EPD_DC -> EPD_DC_PIN
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* EPD_CS -> EPD_CS_PIN
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* EPD_BUSY -> EPD_BUSY_PIN
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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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******************************************************************************/
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#include "EPD_2in13.h"
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#ifdef EPD_2IN13
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const unsigned char EPD_2IN13_lut_full_update[] = {
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0x22, 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x11,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x1E, 0x1E, 0x1E, 0x1E, 0x1E, 0x1E, 0x1E, 0x1E,
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0x01, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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const unsigned char EPD_2IN13_lut_partial_update[] = {
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0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x0F, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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/******************************************************************************
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function : Software reset
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parameter:
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******************************************************************************/
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static void EPD_2IN13_Reset(void)
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{
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EPD_Digital_Write(EPD_RST_PIN, 1);
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EPD_Delay_ms(200);
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EPD_Digital_Write(EPD_RST_PIN, 0);
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EPD_Delay_ms(2);
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EPD_Digital_Write(EPD_RST_PIN, 1);
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EPD_Delay_ms(200);
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}
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/******************************************************************************
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function : send command
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parameter:
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Reg : Command register
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******************************************************************************/
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static void EPD_2IN13_SendCommand(UBYTE Reg)
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{
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EPD_Digital_Write(EPD_DC_PIN, 0);
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EPD_Digital_Write(EPD_CS_PIN, 0);
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EPD_SPI_WriteByte(Reg);
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EPD_Digital_Write(EPD_CS_PIN, 1);
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}
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/******************************************************************************
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function : send data
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parameter:
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Data : Write data
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******************************************************************************/
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static void EPD_2IN13_SendData(UBYTE Data)
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{
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EPD_Digital_Write(EPD_DC_PIN, 1);
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EPD_Digital_Write(EPD_CS_PIN, 0);
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EPD_SPI_WriteByte(Data);
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EPD_Digital_Write(EPD_CS_PIN, 1);
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}
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/******************************************************************************
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function : Wait until the busy_pin goes LOW
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parameter:
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******************************************************************************/
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void EPD_2IN13_ReadBusy(void)
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{
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EPD_Printf("e-Paper busy\r\n");
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while(EPD_Digital_Read(EPD_BUSY_PIN) == 1) { //LOW: idle, HIGH: busy
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EPD_Delay_ms(100);
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}
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EPD_Printf("e-Paper busy release\r\n");
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}
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/******************************************************************************
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function : Turn On Display
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parameter:
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******************************************************************************/
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static void EPD_2IN13_TurnOnDisplay(void)
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{
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EPD_2IN13_SendCommand(0x22); // DISPLAY_UPDATE_CONTROL_2
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EPD_2IN13_SendData(0xC4);
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EPD_2IN13_SendCommand(0X20); // MASTER_ACTIVATION
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EPD_2IN13_SendCommand(0xFF); // TERMINATE_FRAME_READ_WRITE
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EPD_2IN13_ReadBusy();
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}
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static void EPD_2IN13_SetWindows(int x_start, int y_start, int x_end, int y_end)
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{
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EPD_2IN13_SendCommand(0x44);
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/* x point must be the multiple of 8 or the last 3 bits will be ignored */
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EPD_2IN13_SendData((x_start >> 3) & 0xFF);
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EPD_2IN13_SendData((x_end >> 3) & 0xFF);
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EPD_2IN13_SendCommand(0x45);
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EPD_2IN13_SendData(y_start & 0xFF);
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EPD_2IN13_SendData((y_start >> 8) & 0xFF);
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EPD_2IN13_SendData(y_end & 0xFF);
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EPD_2IN13_SendData((y_end >> 8) & 0xFF);
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}
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static void EPD_2IN13_SetCursor(int x, int y)
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{
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EPD_2IN13_SendCommand(0x4E);
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/* x point must be the multiple of 8 or the last 3 bits will be ignored */
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EPD_2IN13_SendData((x >> 3) & 0xFF);
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EPD_2IN13_SendCommand(0x4F);
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EPD_2IN13_SendData(y & 0xFF);
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EPD_2IN13_SendData((y >> 8) & 0xFF);
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// EPD_2IN13_ReadBusy();
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}
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/******************************************************************************
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function : Initialize the e-Paper register
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parameter:
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******************************************************************************/
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void EPD_2IN13_Init(UBYTE Mode)
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{
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EPD_2IN13_Reset();
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EPD_2IN13_SendCommand(0x01); // DRIVER_OUTPUT_CONTROL
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EPD_2IN13_SendData((EPD_2IN13_HEIGHT - 1) & 0xFF);
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EPD_2IN13_SendData(((EPD_2IN13_HEIGHT - 1) >> 8) & 0xFF);
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EPD_2IN13_SendData(0x00); // GD = 0; SM = 0; TB = 0;
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EPD_2IN13_SendCommand(0x0C); // BOOSTER_SOFT_START_CONTROL
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EPD_2IN13_SendData(0xD7);
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EPD_2IN13_SendData(0xD6);
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EPD_2IN13_SendData(0x9D);
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EPD_2IN13_SendCommand(0x2C); // WRITE_VCOM_REGISTER
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EPD_2IN13_SendData(0xA8); // VCOM 7C
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EPD_2IN13_SendCommand(0x3A); // SET_DUMMY_LINE_PERIOD
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EPD_2IN13_SendData(0x1A); // 4 dummy lines per gate
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EPD_2IN13_SendCommand(0x3B); // SET_GATE_TIME
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EPD_2IN13_SendData(0x08); // 2us per line
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EPD_2IN13_SendCommand(0X3C); // BORDER_WAVEFORM_CONTROL
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EPD_2IN13_SendData(0x03);
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EPD_2IN13_SendCommand(0X11); // DATA_ENTRY_MODE_SETTING
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EPD_2IN13_SendData(0x03); // X increment; Y increment
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//set the look-up table register
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EPD_2IN13_SendCommand(0x32);
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if(Mode == EPD_2IN13_FULL) {
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for (UWORD i = 0; i < 30; i++) {
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EPD_2IN13_SendData(EPD_2IN13_lut_full_update[i]);
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}
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} else if(Mode == EPD_2IN13_PART) {
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for (UWORD i = 0; i < 30; i++) {
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EPD_2IN13_SendData(EPD_2IN13_lut_partial_update[i]);
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}
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} else {
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EPD_Printf("error, the Mode is EPD_2IN13_FULL or EPD_2IN13_PART");
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}
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}
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/******************************************************************************
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function : Clear screen
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parameter:
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******************************************************************************/
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void EPD_2IN13_Clear(void)
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{
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UWORD Width, Height;
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Width = (EPD_2IN13_WIDTH % 8 == 0)? (EPD_2IN13_WIDTH / 8 ): (EPD_2IN13_WIDTH / 8 + 1);
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Height = EPD_2IN13_HEIGHT;
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EPD_2IN13_SetWindows(0, 0, EPD_2IN13_WIDTH, EPD_2IN13_HEIGHT);
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for (UWORD j = 0; j < Height; j++) {
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EPD_2IN13_SetCursor(0, j);
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EPD_2IN13_SendCommand(0x24);
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for (UWORD i = 0; i < Width; i++) {
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EPD_2IN13_SendData(0Xff);
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}
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}
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EPD_2IN13_TurnOnDisplay();
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}
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/******************************************************************************
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function : Sends the image buffer in RAM to e-Paper and displays
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parameter:
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******************************************************************************/
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void EPD_2IN13_Display(UBYTE *Image)
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{
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UWORD Width, Height;
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Width = (EPD_2IN13_WIDTH % 8 == 0)? (EPD_2IN13_WIDTH / 8 ): (EPD_2IN13_WIDTH / 8 + 1);
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Height = EPD_2IN13_HEIGHT;
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EPD_2IN13_SetWindows(0, 0, EPD_2IN13_WIDTH, EPD_2IN13_HEIGHT);
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for (UWORD j = 0; j < Height; j++) {
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EPD_2IN13_SetCursor(0, j);
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EPD_2IN13_SendCommand(0x24);
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for (UWORD i = 0; i < Width; i++) {
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EPD_2IN13_SendData(Image[i + j * Width]);
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}
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}
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EPD_2IN13_TurnOnDisplay();
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}
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/******************************************************************************
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function : Enter sleep mode
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parameter:
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******************************************************************************/
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void EPD_2IN13_Sleep(void)
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{
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EPD_2IN13_SendCommand(0x10); //DEEP_SLEEP_MODE
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EPD_2IN13_SendData(0x01);
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}
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#endif
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