/***************************************************************************** * | File : EPD_2in13d.c * | Author : Waveshare team * | Function : Electronic paper driver * | Info : *---------------- * | This version: V2.0 * | Date : 2018-11-13 * | Info : * 1.Remove:ImageBuff[EPD_HEIGHT * EPD_WIDTH / 8] * 2.Change:EPD_Display(UBYTE *Image) * Need to pass parameters: pointer to cached data * 3.Change: * EPD_RST -> EPD_RST_PIN * EPD_DC -> EPD_DC_PIN * EPD_CS -> EPD_CS_PIN * EPD_BUSY -> EPD_BUSY_PIN # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documnetation files (the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN # THE SOFTWARE. # ******************************************************************************/ #include "EPD_2in13d.h" #include "Debug.h" /** * full screen update LUT **/ const unsigned char lut_vcomDC[] = { 0x00, 0x08, 0x00, 0x00, 0x00, 0x02, 0x60, 0x28, 0x28, 0x00, 0x00, 0x01, 0x00, 0x14, 0x00, 0x00, 0x00, 0x01, 0x00, 0x12, 0x12, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }; const unsigned char lut_ww[] = { 0x40, 0x08, 0x00, 0x00, 0x00, 0x02, 0x90, 0x28, 0x28, 0x00, 0x00, 0x01, 0x40, 0x14, 0x00, 0x00, 0x00, 0x01, 0xA0, 0x12, 0x12, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }; const unsigned char lut_bw[] = { 0x40, 0x17, 0x00, 0x00, 0x00, 0x02, 0x90, 0x0F, 0x0F, 0x00, 0x00, 0x03, 0x40, 0x0A, 0x01, 0x00, 0x00, 0x01, 0xA0, 0x0E, 0x0E, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }; const unsigned char lut_wb[] = { 0x80, 0x08, 0x00, 0x00, 0x00, 0x02, 0x90, 0x28, 0x28, 0x00, 0x00, 0x01, 0x80, 0x14, 0x00, 0x00, 0x00, 0x01, 0x50, 0x12, 0x12, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }; const unsigned char lut_bb[] = { 0x80, 0x08, 0x00, 0x00, 0x00, 0x02, 0x90, 0x28, 0x28, 0x00, 0x00, 0x01, 0x80, 0x14, 0x00, 0x00, 0x00, 0x01, 0x50, 0x12, 0x12, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }; /** * partial screen update LUT **/ const unsigned char lut_vcom1[] = { 0x00, 0x19, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ,0x00, 0x00, }; const unsigned char lut_ww1[] = { 0x00, 0x19, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }; const unsigned char lut_bw1[] = { 0x80, 0x19, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }; const unsigned char lut_wb1[] = { 0x40, 0x19, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }; const unsigned char lut_bb1[] = { 0x00, 0x19, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }; /****************************************************************************** function : Software reset parameter: ******************************************************************************/ static void EPD_Reset(void) { DEV_Digital_Write(EPD_RST_PIN, 1); DEV_Delay_ms(200); DEV_Digital_Write(EPD_RST_PIN, 0); DEV_Delay_ms(200); DEV_Digital_Write(EPD_RST_PIN, 1); DEV_Delay_ms(200); } /****************************************************************************** function : send command parameter: Reg : Command register ******************************************************************************/ static void EPD_SendCommand(UBYTE Reg) { DEV_Digital_Write(EPD_DC_PIN, 0); DEV_Digital_Write(EPD_CS_PIN, 0); DEV_SPI_WriteByte(Reg); DEV_Digital_Write(EPD_CS_PIN, 1); } /****************************************************************************** function : send data parameter: Data : Write data ******************************************************************************/ static void EPD_SendData(UBYTE Data) { DEV_Digital_Write(EPD_DC_PIN, 1); DEV_Digital_Write(EPD_CS_PIN, 0); DEV_SPI_WriteByte(Data); DEV_Digital_Write(EPD_CS_PIN, 1); } /****************************************************************************** function : Wait until the busy_pin goes LOW parameter: ******************************************************************************/ void EPD_WaitUntilIdle(void) { Debug("e-Paper busy\r\n"); UBYTE busy; do { EPD_SendCommand(0x71); busy = DEV_Digital_Read(EPD_BUSY_PIN); busy =!(busy & 0x01); } while(busy); DEV_Delay_ms(200); Debug("e-Paper busy release\r\n"); } /****************************************************************************** function : LUT download parameter: ******************************************************************************/ static void EPD_SetFullReg(void) { EPD_SendCommand(0X50); //VCOM AND DATA INTERVAL SETTING EPD_SendData(0xb7); //WBmode:VBDF 17|D7 VBDW 97 VBDB 57 WBRmode:VBDF F7 VBDW 77 VBDB 37 VBDR B7 unsigned int count; EPD_SendCommand(0x20); for(count=0; count<44; count++) { EPD_SendData(lut_vcomDC[count]); } EPD_SendCommand(0x21); for(count=0; count<42; count++) { EPD_SendData(lut_ww[count]); } EPD_SendCommand(0x22); for(count=0; count<42; count++) { EPD_SendData(lut_bw[count]); } EPD_SendCommand(0x23); for(count=0; count<42; count++) { EPD_SendData(lut_wb[count]); } EPD_SendCommand(0x24); for(count=0; count<42; count++) { EPD_SendData(lut_bb[count]); } } /****************************************************************************** function : LUT download parameter: ******************************************************************************/ static void EPD_SetPartReg(void) { EPD_SendCommand(0x82); //vcom_DC setting EPD_SendData(0x00); EPD_SendCommand(0X50); EPD_SendData(0xb7); unsigned int count; EPD_SendCommand(0x20); for(count=0; count<44; count++) { EPD_SendData(lut_vcom1[count]); } EPD_SendCommand(0x21); for(count=0; count<42; count++) { EPD_SendData(lut_ww1[count]); } EPD_SendCommand(0x22); for(count=0; count<42; count++) { EPD_SendData(lut_bw1[count]); } EPD_SendCommand(0x23); for(count=0; count<42; count++) { EPD_SendData(lut_wb1[count]); } EPD_SendCommand(0x24); for(count=0; count<42; count++) { EPD_SendData(lut_bb1[count]); } } /****************************************************************************** function : Turn On Display parameter: ******************************************************************************/ static void EPD_TurnOnDisplay(void) { EPD_SendCommand(0x12); //DISPLAY REFRESH DEV_Delay_ms(10); //!!!The delay here is necessary, 200uS at least!!! EPD_WaitUntilIdle(); } /****************************************************************************** function : Initialize the e-Paper register parameter: ******************************************************************************/ UBYTE EPD_Init() { EPD_Reset(); EPD_SendCommand(0x01); //POWER SETTING EPD_SendData(0x03); EPD_SendData(0x00); EPD_SendData(0x2b); EPD_SendData(0x2b); EPD_SendData(0x03); EPD_SendCommand(0x06); //boost soft start EPD_SendData(0x17); //A EPD_SendData(0x17); //B EPD_SendData(0x17); //C EPD_SendCommand(0x04); EPD_WaitUntilIdle(); EPD_SendCommand(0x00); //panel setting EPD_SendData(0xbf); //LUT from OTP，128x296 EPD_SendData(0x0e); //VCOM to 0V fast EPD_SendCommand(0x30); //PLL setting EPD_SendData(0x3a); // 3a 100HZ 29 150Hz 39 200HZ 31 171HZ EPD_SendCommand(0x61); //resolution setting EPD_SendData(EPD_WIDTH); EPD_SendData((EPD_HEIGHT >> 8) & 0xff); EPD_SendData(EPD_HEIGHT& 0xff); EPD_SendCommand(0x82); //vcom_DC setting EPD_SendData(0x28); return 0; } /****************************************************************************** function : Clear screen parameter: ******************************************************************************/ void EPD_Clear(void) { UWORD Width, Height; Width = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1); Height = EPD_HEIGHT; EPD_SendCommand(0x10); for (UWORD j = 0; j < Height; j++) { for (UWORD i = 0; i < Width; i++) { EPD_SendData(0x00); } } EPD_SendCommand(0x13); for (UWORD j = 0; j < Height; j++) { for (UWORD i = 0; i < Width; i++) { EPD_SendData(0xFF); } } EPD_SetFullReg(); EPD_TurnOnDisplay(); } /****************************************************************************** function : Sends the image buffer in RAM to e-Paper and displays parameter: ******************************************************************************/ void EPD_Display(UBYTE *Image) { UWORD Width, Height; Width = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1); Height = EPD_HEIGHT; EPD_SendCommand(0x10); for (UWORD j = 0; j < Height; j++) { for (UWORD i = 0; i < Width; i++) { EPD_SendData(0x00); } } // Dev_Delay_ms(10); EPD_SendCommand(0x13); for (UWORD j = 0; j < Height; j++) { for (UWORD i = 0; i < Width; i++) { EPD_SendData(Image[i + j * Width]); } } // Dev_Delay_ms(10); EPD_SetFullReg(); EPD_TurnOnDisplay(); } /****************************************************************************** function : Sends the image buffer in RAM to e-Paper and displays parameter: ******************************************************************************/ void EPD_DisplayPartial(UBYTE *Image) { /* Set partial Windows */ EPD_SetPartReg(); EPD_SendCommand(0x91); //This command makes the display enter partial mode EPD_SendCommand(0x90); //resolution setting EPD_SendData(0); //x-start EPD_SendData(EPD_WIDTH - 1); //x-end EPD_SendData(0); EPD_SendData(0); //y-start EPD_SendData(EPD_HEIGHT / 256); EPD_SendData(EPD_HEIGHT % 256 - 1); //y-end EPD_SendData(0x28); UWORD Width; Width = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1); /* send data */ EPD_SendCommand(0x10); for (UWORD j = 0; j < EPD_HEIGHT; j++) { for (UWORD i = 0; i < Width; i++) { EPD_SendData(~Image[i + j * Width]); } } EPD_SendCommand(0x13); for (UWORD j = 0; j < EPD_HEIGHT; j++) { for (UWORD i = 0; i < Width; i++) { EPD_SendData(Image[i + j * Width]); } } /* Set partial refresh */ EPD_TurnOnDisplay(); } /****************************************************************************** function : Enter sleep mode parameter: ******************************************************************************/ void EPD_Sleep(void) { EPD_SendCommand(0X50); EPD_SendData(0xf7); EPD_SendCommand(0X02); //power off EPD_SendCommand(0X07); //deep sleep EPD_SendData(0xA5); }