/***************************************************************************** * | File : EPD_2in9_V2.c * | Author : Waveshare team * | Function : 2.9inch e-paper V2 * | Info : *---------------- * | This version: V1.0 * | Date : 2020-10-20 * | Info : * ----------------------------------------------------------------------------- # # 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_2in9_V2.h" #include "Debug.h" UBYTE _WF_PARTIAL_2IN9[159] = { 0x0,0x40,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x80,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x40,0x40,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0A,0x0,0x0,0x0,0x0,0x0,0x2, 0x1,0x0,0x0,0x0,0x0,0x0,0x0, 0x1,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x22,0x22,0x22,0x22,0x22,0x22,0x0,0x0,0x0, 0x22,0x17,0x41,0xB0,0x32,0x36, }; /****************************************************************************** function : Software reset parameter: ******************************************************************************/ static void EPD_2IN9_V2_Reset(void) { DEV_Digital_Write(EPD_RST_PIN, 1); DEV_Delay_ms(100); DEV_Digital_Write(EPD_RST_PIN, 0); DEV_Delay_ms(2); DEV_Digital_Write(EPD_RST_PIN, 1); DEV_Delay_ms(100); } /****************************************************************************** function : send command parameter: Reg : Command register ******************************************************************************/ static void EPD_2IN9_V2_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_2IN9_V2_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_2IN9_V2_ReadBusy(void) { Debug("e-Paper busy\r\n"); while(1) { //=1 BUSY if(DEV_Digital_Read(EPD_BUSY_PIN)==0) break; DEV_Delay_ms(50); } DEV_Delay_ms(50); Debug("e-Paper busy release\r\n"); } static void EPD_2IN9_V2_LUT(void) { UBYTE count; EPD_2IN9_V2_SendCommand(0x32); for(count=0; count<153; count++) EPD_2IN9_V2_SendData(_WF_PARTIAL_2IN9[count]); EPD_2IN9_V2_ReadBusy(); } /****************************************************************************** function : Turn On Display parameter: ******************************************************************************/ static void EPD_2IN9_V2_TurnOnDisplay(void) { EPD_2IN9_V2_SendCommand(0x22); //Display Update Control EPD_2IN9_V2_SendData(0xF7); EPD_2IN9_V2_SendCommand(0x20); //Activate Display Update Sequence EPD_2IN9_V2_ReadBusy(); } static void EPD_2IN9_V2_TurnOnDisplay_Partial(void) { EPD_2IN9_V2_SendCommand(0x22); //Display Update Control EPD_2IN9_V2_SendData(0x0F); EPD_2IN9_V2_SendCommand(0x20); //Activate Display Update Sequence EPD_2IN9_V2_ReadBusy(); } /****************************************************************************** function : Setting the display window parameter: ******************************************************************************/ static void EPD_2IN9_V2_SetWindows(UWORD Xstart, UWORD Ystart, UWORD Xend, UWORD Yend) { EPD_2IN9_V2_SendCommand(0x44); // SET_RAM_X_ADDRESS_START_END_POSITION EPD_2IN9_V2_SendData((Xstart>>3) & 0xFF); EPD_2IN9_V2_SendData((Xend>>3) & 0xFF); EPD_2IN9_V2_SendCommand(0x45); // SET_RAM_Y_ADDRESS_START_END_POSITION EPD_2IN9_V2_SendData(Ystart & 0xFF); EPD_2IN9_V2_SendData((Ystart >> 8) & 0xFF); EPD_2IN9_V2_SendData(Yend & 0xFF); EPD_2IN9_V2_SendData((Yend >> 8) & 0xFF); } /****************************************************************************** function : Set Cursor parameter: ******************************************************************************/ static void EPD_2IN9_V2_SetCursor(UWORD Xstart, UWORD Ystart) { EPD_2IN9_V2_SendCommand(0x4E); // SET_RAM_X_ADDRESS_COUNTER EPD_2IN9_V2_SendData(Xstart & 0xFF); EPD_2IN9_V2_SendCommand(0x4F); // SET_RAM_Y_ADDRESS_COUNTER EPD_2IN9_V2_SendData(Ystart & 0xFF); EPD_2IN9_V2_SendData((Ystart >> 8) & 0xFF); } /****************************************************************************** function : Initialize the e-Paper register parameter: ******************************************************************************/ void EPD_2IN9_V2_Init(void) { EPD_2IN9_V2_Reset(); DEV_Delay_ms(100); EPD_2IN9_V2_ReadBusy(); EPD_2IN9_V2_SendCommand(0x12); // soft reset EPD_2IN9_V2_ReadBusy(); EPD_2IN9_V2_SendCommand(0x01); //Driver output control EPD_2IN9_V2_SendData(0x27); EPD_2IN9_V2_SendData(0x01); EPD_2IN9_V2_SendData(0x00); EPD_2IN9_V2_SendCommand(0x11); //data entry mode EPD_2IN9_V2_SendData(0x03); EPD_2IN9_V2_SetWindows(0, 0, EPD_2IN9_V2_WIDTH-1, EPD_2IN9_V2_HEIGHT-1); EPD_2IN9_V2_SendCommand(0x21); // Display update control EPD_2IN9_V2_SendData(0x00); EPD_2IN9_V2_SendData(0x80); EPD_2IN9_V2_SetCursor(0, 0); EPD_2IN9_V2_ReadBusy(); } /****************************************************************************** function : Clear screen parameter: ******************************************************************************/ void EPD_2IN9_V2_Clear(void) { UWORD i; EPD_2IN9_V2_SendCommand(0x24); //write RAM for black(0)/white (1) for(i=0;i<4736;i++) { EPD_2IN9_V2_SendData(0xff); } EPD_2IN9_V2_TurnOnDisplay(); } /****************************************************************************** function : Sends the image buffer in RAM to e-Paper and displays parameter: ******************************************************************************/ void EPD_2IN9_V2_Display(UBYTE *Image) { UWORD i; EPD_2IN9_V2_SendCommand(0x24); //write RAM for black(0)/white (1) for(i=0;i<4736;i++) { EPD_2IN9_V2_SendData(Image[i]); } EPD_2IN9_V2_TurnOnDisplay(); } void EPD_2IN9_V2_Display_Base(UBYTE *Image) { UWORD i; EPD_2IN9_V2_SendCommand(0x24); //Write Black and White image to RAM for(i=0;i<4736;i++) { EPD_2IN9_V2_SendData(Image[i]); } EPD_2IN9_V2_SendCommand(0x26); //Write Black and White image to RAM for(i=0;i<4736;i++) { EPD_2IN9_V2_SendData(Image[i]); } EPD_2IN9_V2_TurnOnDisplay(); } void EPD_2IN9_V2_Display_Partial(UBYTE *Image) { UWORD i; //Reset DEV_Digital_Write(EPD_RST_PIN, 0); DEV_Delay_ms(5); DEV_Digital_Write(EPD_RST_PIN, 1); DEV_Delay_ms(10); EPD_2IN9_V2_LUT(); EPD_2IN9_V2_SendCommand(0x37); EPD_2IN9_V2_SendData(0x00); EPD_2IN9_V2_SendData(0x00); EPD_2IN9_V2_SendData(0x00); EPD_2IN9_V2_SendData(0x00); EPD_2IN9_V2_SendData(0x00); EPD_2IN9_V2_SendData(0x40); EPD_2IN9_V2_SendData(0x00); EPD_2IN9_V2_SendData(0x00); EPD_2IN9_V2_SendData(0x00); EPD_2IN9_V2_SendData(0x00); EPD_2IN9_V2_SendCommand(0x3C); //BorderWavefrom EPD_2IN9_V2_SendData(0x80); EPD_2IN9_V2_SendCommand(0x22); EPD_2IN9_V2_SendData(0xC0); EPD_2IN9_V2_SendCommand(0x20); EPD_2IN9_V2_ReadBusy(); EPD_2IN9_V2_SetWindows(0, 0, EPD_2IN9_V2_WIDTH-1, EPD_2IN9_V2_HEIGHT-1); EPD_2IN9_V2_SetCursor(0, 0); EPD_2IN9_V2_SendCommand(0x24); //Write Black and White image to RAM for(i=0;i<4736;i++) { EPD_2IN9_V2_SendData(Image[i]); } EPD_2IN9_V2_TurnOnDisplay_Partial(); } /****************************************************************************** function : Enter sleep mode parameter: ******************************************************************************/ void EPD_2IN9_V2_Sleep(void) { EPD_2IN9_V2_SendCommand(0x10); //enter deep sleep EPD_2IN9_V2_SendData(0x01); DEV_Delay_ms(100); }