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364 lines
12 KiB
C
364 lines
12 KiB
C
/*****************************************************************************
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* | File : EPD_7IN5B_HD_7in5.c
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* | Author : Waveshare team
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* | Function : Electronic paper driver
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* | Info :
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*----------------
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* | This version: HD.0
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* | Date : 2018-11-09
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* | Info :
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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_7in5b_HD.h"
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#ifdef EPD_7IN5B_HD
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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_7IN5B_HD_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_7IN5B_HD_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_7IN5B_HD_SendData(UBYTE Data)
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{
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EPD_Digital_Write(EPD_CS_PIN, 0);
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EPD_Digital_Write(EPD_DC_PIN, 1);
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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_7IN5B_HD_WaitUntilIdle(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)){
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//EPD_Delay_ms(10);
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}
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EPD_Delay_ms(200);
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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_7IN5B_HD_TurnOnDisplay(void)
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{
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EPD_7IN5B_HD_SendCommand(0x22);
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EPD_7IN5B_HD_SendData(0xC7); //Load LUT from MCU(0x32)
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EPD_7IN5B_HD_SendCommand(0x20);
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EPD_Delay_ms(200); //!!!The delay here is necessary, 200uS at least!!!
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EPD_7IN5B_HD_WaitUntilIdle(); //waiting for the electronic paper IC to release the idle signal
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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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UBYTE EPD_7IN5B_HD_Init(void)
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{
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EPD_7IN5B_HD_Reset();
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EPD_7IN5B_HD_SendCommand(0x12); //SWRESET
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EPD_7IN5B_HD_WaitUntilIdle(); //waiting for the electronic paper IC to release the idle signal
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EPD_7IN5B_HD_SendCommand(0x46); // Auto Write RAM
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EPD_7IN5B_HD_SendData(0xF7);
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EPD_7IN5B_HD_WaitUntilIdle(); //waiting for the electronic paper IC to release the idle signal
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EPD_7IN5B_HD_SendCommand(0x47); // Auto Write RAM
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EPD_7IN5B_HD_SendData(0xF7);
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EPD_7IN5B_HD_WaitUntilIdle(); //waiting for the electronic paper IC to release the idle signal
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EPD_7IN5B_HD_SendCommand(0x0C); // Soft start setting
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EPD_7IN5B_HD_SendData(0xAE);
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EPD_7IN5B_HD_SendData(0xC7);
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EPD_7IN5B_HD_SendData(0xC3);
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EPD_7IN5B_HD_SendData(0xC0);
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EPD_7IN5B_HD_SendData(0x40);
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EPD_7IN5B_HD_SendCommand(0x01); // Set MUX as 527
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EPD_7IN5B_HD_SendData(0xAF);
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EPD_7IN5B_HD_SendData(0x02);
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EPD_7IN5B_HD_SendData(0x01);
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EPD_7IN5B_HD_SendCommand(0x11); // Data entry mode
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EPD_7IN5B_HD_SendData(0x01);
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EPD_7IN5B_HD_SendCommand(0x44);
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EPD_7IN5B_HD_SendData(0x00); // RAM x address start at 0
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EPD_7IN5B_HD_SendData(0x00);
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EPD_7IN5B_HD_SendData(0x6F); // RAM x address end at 36Fh -> 879
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EPD_7IN5B_HD_SendData(0x03);
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EPD_7IN5B_HD_SendCommand(0x45);
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EPD_7IN5B_HD_SendData(0xAF); // RAM y address start at 20Fh;
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EPD_7IN5B_HD_SendData(0x02);
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EPD_7IN5B_HD_SendData(0x00); // RAM y address end at 00h;
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EPD_7IN5B_HD_SendData(0x00);
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EPD_7IN5B_HD_SendCommand(0x3C); // VBD
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EPD_7IN5B_HD_SendData(0x01); // LUT1, for white
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EPD_7IN5B_HD_SendCommand(0x18);
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EPD_7IN5B_HD_SendData(0X80);
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EPD_7IN5B_HD_SendCommand(0x22);
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EPD_7IN5B_HD_SendData(0XB1); //Load Temperature and waveform setting.
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EPD_7IN5B_HD_SendCommand(0x20);
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EPD_7IN5B_HD_WaitUntilIdle(); //waiting for the electronic paper IC to release the idle signal
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EPD_7IN5B_HD_SendCommand(0x4E);
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EPD_7IN5B_HD_SendData(0x00);
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EPD_7IN5B_HD_SendData(0x00);
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EPD_7IN5B_HD_SendCommand(0x4F);
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EPD_7IN5B_HD_SendData(0xAF);
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EPD_7IN5B_HD_SendData(0x02);
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return 0;
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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_7IN5B_HD_Clear(void)
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{
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UWORD Width, Height;
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Width =(EPD_7IN5B_HD_WIDTH % 8 == 0)?(EPD_7IN5B_HD_WIDTH / 8 ):(EPD_7IN5B_HD_WIDTH / 8 + 1);
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Height = EPD_7IN5B_HD_HEIGHT;
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EPD_7IN5B_HD_SendCommand(0x4F);
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EPD_7IN5B_HD_SendData(0xAf);
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EPD_7IN5B_HD_SendData(0x02);
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UWORD i;
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EPD_7IN5B_HD_SendCommand(0x24);
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for(i=0; i<Width*Height; i++) {
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EPD_7IN5B_HD_SendData(0xff);
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}
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EPD_7IN5B_HD_SendCommand(0x26);
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for(i=0; i<Width*Height; i++) {
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EPD_7IN5B_HD_SendData(0x00);
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}
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EPD_7IN5B_HD_TurnOnDisplay();
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}
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void EPD_7IN5B_HD_ClearRed(void)
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{
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UWORD Width, Height;
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Width =(EPD_7IN5B_HD_WIDTH % 8 == 0)?(EPD_7IN5B_HD_WIDTH / 8 ):(EPD_7IN5B_HD_WIDTH / 8 + 1);
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Height = EPD_7IN5B_HD_HEIGHT;
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UWORD i;
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EPD_7IN5B_HD_SendCommand(0x4F);
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EPD_7IN5B_HD_SendData(0xAF);
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EPD_7IN5B_HD_SendData(0x02);
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EPD_7IN5B_HD_SendCommand(0x24);
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for(i=0; i<Width*Height; i++) {
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EPD_7IN5B_HD_SendData(0xff);
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}
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EPD_7IN5B_HD_SendCommand(0x26);
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for(i=0; i<Width*Height; i++) {
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EPD_7IN5B_HD_SendData(0xff);
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}
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EPD_7IN5B_HD_TurnOnDisplay();
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}
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void EPD_7IN5B_HD_ClearBlack(void)
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{
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UWORD Width, Height;
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Width =(EPD_7IN5B_HD_WIDTH % 8 == 0)?(EPD_7IN5B_HD_WIDTH / 8 ):(EPD_7IN5B_HD_WIDTH / 8 + 1);
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Height = EPD_7IN5B_HD_HEIGHT;
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UWORD i;
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EPD_7IN5B_HD_SendCommand(0x4F);
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EPD_7IN5B_HD_SendData(0xAF);
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EPD_7IN5B_HD_SendData(0x02);
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EPD_7IN5B_HD_SendCommand(0x24);
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for(i=0; i<Width*Height; i++) {
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EPD_7IN5B_HD_SendData(0x00);
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}
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EPD_7IN5B_HD_SendCommand(0x26);
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for(i=0; i<Width*Height; i++) {
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EPD_7IN5B_HD_SendData(0x00);
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}
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EPD_7IN5B_HD_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_7IN5B_HD_Display(const UBYTE *blackimage, const UBYTE *ryimage)
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{
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UDOUBLE Width, Height;
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Width =(EPD_7IN5B_HD_WIDTH % 8 == 0)?(EPD_7IN5B_HD_WIDTH / 8 ):(EPD_7IN5B_HD_WIDTH / 8 + 1);
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Height = EPD_7IN5B_HD_HEIGHT;
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EPD_7IN5B_HD_SendCommand(0x4F);
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EPD_7IN5B_HD_SendData(0xAF);
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EPD_7IN5B_HD_SendData(0x02);
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//send black data
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EPD_7IN5B_HD_SendCommand(0x24);
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for (UDOUBLE j = 0; j < Height; j++) {
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for (UDOUBLE i = 0; i < Width; i++) {
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EPD_7IN5B_HD_SendData(blackimage[i + j * Width]);
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}
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}
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//send red data
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EPD_7IN5B_HD_SendCommand(0x26);
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for (UDOUBLE j = 0; j < Height; j++) {
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for (UDOUBLE i = 0; i < Width; i++) {
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EPD_7IN5B_HD_SendData(~ryimage[i + j * Width]);
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}
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}
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EPD_7IN5B_HD_TurnOnDisplay();
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}
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void EPD_7IN5B_HD_DisplayPicture(const UBYTE *blackimage,UBYTE Block)
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{
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UDOUBLE Width, Height;
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Width =(EPD_7IN5B_HD_WIDTH % 8 == 0)?(EPD_7IN5B_HD_WIDTH / 8 ):(EPD_7IN5B_HD_WIDTH / 8 + 1);
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Height = EPD_7IN5B_HD_HEIGHT;
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if(Block == 0){
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EPD_7IN5B_HD_SendCommand(0x4F);
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EPD_7IN5B_HD_SendData(0xAF);
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EPD_7IN5B_HD_SendData(0x02);
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EPD_7IN5B_HD_SendCommand(0x24);
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for (UDOUBLE j = 0; j < Height/2; j++) {
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for (UDOUBLE i = 0; i < Width; i++) {
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EPD_7IN5B_HD_SendData(blackimage[i + j * Width]);
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}
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}
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}else if(Block == 1){
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for (UDOUBLE j = 0; j < Height/2; j++) {
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for (UDOUBLE i = 0; i < Width; i++) {
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EPD_7IN5B_HD_SendData(blackimage[i + j * Width]);
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}
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}
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}else if(Block == 2){
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EPD_7IN5B_HD_SendCommand(0x26);
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for (UDOUBLE j = 0; j < Height/2; j++) {
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for (UDOUBLE i = 0; i < Width; i++) {
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EPD_7IN5B_HD_SendData(~blackimage[i + j * Width]);
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}
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}
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}else if(Block == 3){
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for (UDOUBLE j = 0; j < Height/2; j++) {
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for (UDOUBLE i = 0; i < Width; i++) {
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EPD_7IN5B_HD_SendData(~blackimage[i + j * Width]);
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}
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}
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EPD_7IN5B_HD_TurnOnDisplay();
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}
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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: image_width and start_X :Must be a multiple of 8
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******************************************************************************/
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void EPD_7IN5B_HD_DisplayImage(const UBYTE *blackimage, const UBYTE *ryimage,UDOUBLE start_X, UDOUBLE start_Y, UDOUBLE image_width, UDOUBLE image_high)
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{
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UDOUBLE Width, Height;
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Width =(EPD_7IN5B_HD_WIDTH % 8 == 0)?(EPD_7IN5B_HD_WIDTH / 8 ):(EPD_7IN5B_HD_WIDTH / 8 + 1);
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Height = EPD_7IN5B_HD_HEIGHT;
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EPD_7IN5B_HD_SendCommand(0x4F);
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EPD_7IN5B_HD_SendData(0xAF);
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EPD_7IN5B_HD_SendData(0x02);
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//send black data
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EPD_7IN5B_HD_SendCommand(0x24);
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for (UDOUBLE j = 0; j < Height; j++) {
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for (UDOUBLE i = 0; i < Width; i++) {
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if((i>=start_X/8) && (i<(start_X+image_width)/8) && (j>=start_Y) && (j<(start_Y+image_high))){
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EPD_7IN5B_HD_SendData(blackimage[i-start_X/8 + (j - start_Y) * image_width/8]);
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}else{
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EPD_7IN5B_HD_SendData(0xff);
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}
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}
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}
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//send red data
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EPD_7IN5B_HD_SendCommand(0x26);
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for (UDOUBLE j = 0; j < Height; j++) {
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for (UDOUBLE i = 0; i < Width; i++) {
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if((i>=start_X/8) && (i<(start_X+image_width)/8) && (j>=start_Y) && (j<(start_Y+image_high))){
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EPD_7IN5B_HD_SendData(~ryimage[i-start_X/8 + (j - start_Y) * image_width/8]);
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}else{
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EPD_7IN5B_HD_SendData(0x00);
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}
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}
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}
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EPD_7IN5B_HD_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_7IN5B_HD_Sleep(void)
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{
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EPD_7IN5B_HD_SendCommand(0x10); //deep sleep
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EPD_7IN5B_HD_SendData(0x01);
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}
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#endif
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