218 lines
6.9 KiB
C
218 lines
6.9 KiB
C
/*****************************************************************************
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* | File : EPD_5in84.c
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* | Author : Waveshare team
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* | Function : 5.84inch e-paper
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* | Info :
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*----------------
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* | This version: V1.0
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* | Date : 2021-01-08
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* | Info :
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* -----------------------------------------------------------------------------
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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_5in84.h"
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#include "Debug.h"
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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_5in84_Reset(void)
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{
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DEV_Digital_Write(EPD_RST_PIN, 1);
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DEV_Delay_ms(200);
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DEV_Digital_Write(EPD_RST_PIN, 0);
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DEV_Delay_ms(3);
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DEV_Digital_Write(EPD_RST_PIN, 1);
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DEV_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_5in84_SendCommand(UBYTE Reg)
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{
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DEV_Digital_Write(EPD_DC_PIN, 0);
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DEV_Digital_Write(EPD_CS_PIN, 0);
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DEV_SPI_WriteByte(Reg);
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DEV_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_5in84_SendData(UBYTE Data)
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{
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DEV_Digital_Write(EPD_DC_PIN, 1);
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DEV_Digital_Write(EPD_CS_PIN, 0);
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DEV_SPI_WriteByte(Data);
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DEV_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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static void EPD_5in84_ReadBusy(void)
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{
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Debug("e-Paper busy\r\n");
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do {
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EPD_5in84_SendCommand(0x71);
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DEV_Delay_ms(10);
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}
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while(!DEV_Digital_Read(EPD_BUSY_PIN));
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Debug("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_5in84_TurnOnDisplay(void)
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{
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EPD_5in84_SendCommand(0x12); //DISPLAY REFRESH
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DEV_Delay_ms(100); //!!!The delay here is necessary, 200uS at least!!!
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EPD_5in84_ReadBusy(); //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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void EPD_5in84_Init(void)
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{
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EPD_5in84_Reset();
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EPD_5in84_SendCommand(0x61); // Resolution setting
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EPD_5in84_SendData(0x03);
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EPD_5in84_SendData(0x00);
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EPD_5in84_SendData(0x01);
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EPD_5in84_SendData(0x00);
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EPD_5in84_SendCommand(0x00);
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EPD_5in84_SendData(0xdf);
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EPD_5in84_SendCommand(0xF8); // Enter FITI Command
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EPD_5in84_SendData(0x60);
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EPD_5in84_SendData(0xA5);
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EPD_5in84_SendCommand(0xF8); // Enter FITI Command
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EPD_5in84_SendData(0x89);
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EPD_5in84_SendData(0xA5);
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EPD_5in84_SendCommand(0xF8);
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EPD_5in84_SendData(0x76);
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EPD_5in84_SendData(0x1F);
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EPD_5in84_SendCommand(0xF8); //boost constant on time
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EPD_5in84_SendData(0x7E);
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EPD_5in84_SendData(0x31);
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EPD_5in84_SendCommand(0xF8);
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EPD_5in84_SendData(0xB8);
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EPD_5in84_SendData(0x80);
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EPD_5in84_SendCommand(0xF8); //vgl=> GND:08, HZ:00[default]
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EPD_5in84_SendData(0x92);
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EPD_5in84_SendData(0x00);
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EPD_5in84_SendCommand(0xF8); //VCOM(2frme off)=> GND:01(0x88=06)[default], HZ:11
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EPD_5in84_SendData(0x87);
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EPD_5in84_SendData(0x01);
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EPD_5in84_SendCommand(0xF8); //r_vcom_init_sel
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EPD_5in84_SendData(0x88);
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EPD_5in84_SendData(0x06);
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EPD_5in84_SendCommand(0xF8);
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EPD_5in84_SendData(0xA8);
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EPD_5in84_SendData(0x30);
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EPD_5in84_SendCommand(0xF8);
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EPD_5in84_SendData(0xE8);
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EPD_5in84_SendData(0x88);
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EPD_5in84_SendCommand(0x04); //power on
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EPD_5in84_ReadBusy();
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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_5in84_Clear(void)
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{
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UWORD Width, Height, i;
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Width = (EPD_5in84_WIDTH % 8 == 0)? (EPD_5in84_WIDTH / 8 ): (EPD_5in84_WIDTH / 8 + 1);
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Height = EPD_5in84_HEIGHT;
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// EPD_5in84_SendCommand(0x10);
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// for(i=0; i<Width*Height; i++) {
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// EPD_5in84_SendData(0x00);
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// }
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EPD_5in84_SendCommand(0x13);
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for(i=0; i<Width*Height; i++) {
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EPD_5in84_SendData(0xff);
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}
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EPD_5in84_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_5in84_Display(UBYTE *Image)
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{
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UWORD Width, Height, i, j;
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Width = (EPD_5in84_WIDTH % 8 == 0)? (EPD_5in84_WIDTH / 8 ): (EPD_5in84_WIDTH / 8 + 1);
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Height = EPD_5in84_HEIGHT;
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// EPD_5in84_SendCommand(0x10);
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// for(i=0;i<Height;i++) {
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// for(j=0; j<Width; j++) {
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// EPD_5in84_SendData(0x00);
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// }
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// }
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EPD_5in84_SendCommand(0x13);
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for(i=0;i<Height;i++) {
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for(j=0; j<Width; j++) {
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EPD_5in84_SendData(Image[i*Width + j]);
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}
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}
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EPD_5in84_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_5in84_Sleep(void)
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{
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EPD_5in84_SendCommand(0X02); //power off
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EPD_5in84_ReadBusy(); //waiting for the electronic paper IC to release the idle signal
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EPD_5in84_SendCommand(0X07); //deep sleep
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EPD_5in84_SendData(0xA5);
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}
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