/***************************************************************************** * | File : EPD_2in9d.c * | Author : Waveshare team * | Function : 2.9inch e-paper d * | Info : *---------------- * | This version: V3.1 * | Date : 2021-03-18 * | Info : * ----------------------------------------------------------------------------- * V3.0(2019-06-12): * 1.Change: * lut_vcomDC[] => EPD_2IN9D_lut_vcomDC[] * lut_ww[] => EPD_2IN9D_lut_ww[] * lut_bw[] => EPD_2IN9D_lut_bw[] * lut_wb[] => EPD_2IN9D_lut_wb[] * lut_bb[] => EPD_2IN9D_lut_bb[] * lut_vcom1[] => EPD_2IN9D_lut_vcom1[] * lut_ww1[] => EPD_2IN9D_lut_ww1[] * lut_bw1[] => EPD_2IN9D_lut_bw1[] * lut_wb1[] => EPD_2IN9D_lut_wb1[] * lut_bb1[] => EPD_2IN9D_lut_bb1[] * EPD_Reset() => EPD_2IN9D_Reset() * EPD_SendCommand() => EPD_2IN9D_SendCommand() * EPD_SendData() => EPD_2IN9D_SendData() * EPD_WaitUntilIdle() => EPD_2IN9D_ReadBusy() * EPD_SetFullReg() => EPD_2IN9D_SetFullReg() * EPD_SetPartReg() => EPD_2IN9D_SetPartReg() * EPD_TurnOnDisplay() => EPD_2IN9D_TurnOnDisplay() * EPD_Init() => EPD_2IN9D_Init() * EPD_Clear() => EPD_2IN9D_Clear() * EPD_Display() => EPD_2IN9D_Display() * EPD_Sleep() => EPD_2IN9D_Sleep() * # 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_2in9d.h" #ifdef EPD_2IN9D /** * partial screen update LUT **/ const unsigned char EPD_2IN9D_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 EPD_2IN9D_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 EPD_2IN9D_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 EPD_2IN9D_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 EPD_2IN9D_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_2IN9D_Reset(void) { EPD_Digital_Write(EPD_RST_PIN, 1); EPD_Delay_ms(20); EPD_Digital_Write(EPD_RST_PIN, 0); EPD_Delay_ms(2); EPD_Digital_Write(EPD_RST_PIN, 1); EPD_Delay_ms(20); EPD_Digital_Write(EPD_RST_PIN, 0); EPD_Delay_ms(2); EPD_Digital_Write(EPD_RST_PIN, 1); EPD_Delay_ms(20); EPD_Digital_Write(EPD_RST_PIN, 0); EPD_Delay_ms(2); EPD_Digital_Write(EPD_RST_PIN, 1); EPD_Delay_ms(20); } /****************************************************************************** function : send command parameter: Reg : Command register ******************************************************************************/ static void EPD_2IN9D_SendCommand(UBYTE Reg) { EPD_Digital_Write(EPD_DC_PIN, 0); EPD_Digital_Write(EPD_CS_PIN, 0); EPD_SPI_WriteByte(Reg); EPD_Digital_Write(EPD_CS_PIN, 1); } /****************************************************************************** function : send data parameter: Data : Write data ******************************************************************************/ static void EPD_2IN9D_SendData(UBYTE Data) { EPD_Digital_Write(EPD_DC_PIN, 1); EPD_Digital_Write(EPD_CS_PIN, 0); EPD_SPI_WriteByte(Data); EPD_Digital_Write(EPD_CS_PIN, 1); } /****************************************************************************** function : Wait until the busy_pin goes LOW parameter: ******************************************************************************/ void EPD_2IN9D_ReadBusy(void) { EPD_Printf("e-Paper busy\r\n"); UBYTE busy; do { EPD_2IN9D_SendCommand(0x71); busy = EPD_Digital_Read(EPD_BUSY_PIN); busy =!(busy & 0x01); } while(busy); EPD_Delay_ms(20); EPD_Printf("e-Paper busy release\r\n"); } /****************************************************************************** function : LUT download parameter: ******************************************************************************/ static void EPD_2IN9D_SetPartReg(void) { EPD_2IN9D_SendCommand(0x01); //POWER SETTING EPD_2IN9D_SendData(0x03); EPD_2IN9D_SendData(0x00); EPD_2IN9D_SendData(0x2b); EPD_2IN9D_SendData(0x2b); EPD_2IN9D_SendData(0x03); EPD_2IN9D_SendCommand(0x06); //boost soft start EPD_2IN9D_SendData(0x17); //A EPD_2IN9D_SendData(0x17); //B EPD_2IN9D_SendData(0x17); //C EPD_2IN9D_SendCommand(0x04); EPD_2IN9D_ReadBusy(); EPD_2IN9D_SendCommand(0x00); //panel setting EPD_2IN9D_SendData(0xbf); //LUT from OTP，128x296 EPD_2IN9D_SendCommand(0x30); //PLL setting EPD_2IN9D_SendData(0x3a); // 3a 100HZ 29 150Hz 39 200HZ 31 171HZ EPD_2IN9D_SendCommand(0x61); //resolution setting EPD_2IN9D_SendData(EPD_2IN9D_WIDTH); EPD_2IN9D_SendData((EPD_2IN9D_HEIGHT >> 8) & 0xff); EPD_2IN9D_SendData(EPD_2IN9D_HEIGHT & 0xff); EPD_2IN9D_SendCommand(0x82); //vcom_DC setting EPD_2IN9D_SendData(0x12); EPD_2IN9D_SendCommand(0X50); EPD_2IN9D_SendData(0x97); unsigned int count; EPD_2IN9D_SendCommand(0x20); for(count=0; count<44; count++) { EPD_2IN9D_SendData(EPD_2IN9D_lut_vcom1[count]); } EPD_2IN9D_SendCommand(0x21); for(count=0; count<42; count++) { EPD_2IN9D_SendData(EPD_2IN9D_lut_ww1[count]); } EPD_2IN9D_SendCommand(0x22); for(count=0; count<42; count++) { EPD_2IN9D_SendData(EPD_2IN9D_lut_bw1[count]); } EPD_2IN9D_SendCommand(0x23); for(count=0; count<42; count++) { EPD_2IN9D_SendData(EPD_2IN9D_lut_wb1[count]); } EPD_2IN9D_SendCommand(0x24); for(count=0; count<42; count++) { EPD_2IN9D_SendData(EPD_2IN9D_lut_bb1[count]); } } /****************************************************************************** function : Turn On Display parameter: ******************************************************************************/ static void EPD_2IN9D_TurnOnDisplay(void) { EPD_2IN9D_SendCommand(0x12); //DISPLAY REFRESH EPD_Delay_ms(10); //!!!The delay here is necessary, 200uS at least!!! EPD_2IN9D_ReadBusy(); } /****************************************************************************** function : Initialize the e-Paper register parameter: ******************************************************************************/ void EPD_2IN9D_Init(void) { EPD_2IN9D_Reset(); EPD_2IN9D_SendCommand(0x04); EPD_2IN9D_ReadBusy();//waiting for the electronic paper IC to release the idle signal EPD_2IN9D_SendCommand(0x00); //panel setting EPD_2IN9D_SendData(0x1f); //LUT from OTP，KW-BF KWR-AF BWROTP 0f BWOTP 1f EPD_2IN9D_SendCommand(0x61); //resolution setting EPD_2IN9D_SendData (0x80); EPD_2IN9D_SendData (0x01); EPD_2IN9D_SendData (0x28); EPD_2IN9D_SendCommand(0X50); //VCOM AND DATA INTERVAL SETTING EPD_2IN9D_SendData(0x97); //WBmode:VBDF 17|D7 VBDW 97 VBDB 57 WBRmode:VBDF F7 VBDW 77 VBDB 37 VBDR B7 } /****************************************************************************** function : Clear screen parameter: ******************************************************************************/ void EPD_2IN9D_Clear(void) { UWORD Width, Height; Width = (EPD_2IN9D_WIDTH % 8 == 0)? (EPD_2IN9D_WIDTH / 8 ): (EPD_2IN9D_WIDTH / 8 + 1); Height = EPD_2IN9D_HEIGHT; EPD_2IN9D_SendCommand(0x10); for (UWORD j = 0; j < Height; j++) { for (UWORD i = 0; i < Width; i++) { EPD_2IN9D_SendData(0x00); } } EPD_2IN9D_SendCommand(0x13); for (UWORD j = 0; j < Height; j++) { for (UWORD i = 0; i < Width; i++) { EPD_2IN9D_SendData(0xFF); } } EPD_2IN9D_TurnOnDisplay(); } /****************************************************************************** function : Sends the image buffer in RAM to e-Paper and displays parameter: ******************************************************************************/ void EPD_2IN9D_Display(UBYTE *Image) { UWORD Width, Height; Width = (EPD_2IN9D_WIDTH % 8 == 0)? (EPD_2IN9D_WIDTH / 8 ): (EPD_2IN9D_WIDTH / 8 + 1); Height = EPD_2IN9D_HEIGHT; EPD_2IN9D_SendCommand(0x10); for (UWORD j = 0; j < Height; j++) { for (UWORD i = 0; i < Width; i++) { EPD_2IN9D_SendData(0x00); } } EPD_2IN9D_SendCommand(0x13); for (UWORD j = 0; j < Height; j++) { for (UWORD i = 0; i < Width; i++) { EPD_2IN9D_SendData(Image[i + j * Width]); } } EPD_2IN9D_TurnOnDisplay(); } /****************************************************************************** function : Sends the image buffer in RAM to e-Paper and displays parameter: ******************************************************************************/ void EPD_2IN9D_DisplayPart(UBYTE *Image) { /* Set partial Windows */ EPD_2IN9D_SetPartReg(); EPD_2IN9D_SendCommand(0x91); //This command makes the display enter partial mode EPD_2IN9D_SendCommand(0x90); //resolution setting EPD_2IN9D_SendData(0); //x-start EPD_2IN9D_SendData(EPD_2IN9D_WIDTH - 1); //x-end EPD_2IN9D_SendData(0); EPD_2IN9D_SendData(0); //y-start EPD_2IN9D_SendData(EPD_2IN9D_HEIGHT / 256); EPD_2IN9D_SendData(EPD_2IN9D_HEIGHT % 256 - 1); //y-end EPD_2IN9D_SendData(0x28); UWORD Width; Width = (EPD_2IN9D_WIDTH % 8 == 0)? (EPD_2IN9D_WIDTH / 8 ): (EPD_2IN9D_WIDTH / 8 + 1); /* send data */ EPD_2IN9D_SendCommand(0x13); for (UWORD j = 0; j < EPD_2IN9D_HEIGHT; j++) { for (UWORD i = 0; i < Width; i++) { EPD_2IN9D_SendData(Image[i + j * Width]); } } /* Set partial refresh */ EPD_2IN9D_TurnOnDisplay(); } /****************************************************************************** function : Enter sleep mode parameter: ******************************************************************************/ void EPD_2IN9D_Sleep(void) { EPD_2IN9D_SendCommand(0X50); EPD_2IN9D_SendData(0xf7); EPD_2IN9D_SendCommand(0X02); //power off EPD_2IN9D_ReadBusy(); EPD_2IN9D_SendCommand(0X07); //deep sleep EPD_2IN9D_SendData(0xA5); } #endif