/***************************************************************************** * | File : EPD_1in54b_V2.h * | Author : Waveshare team * | Function : 1.54inch e-paper b V2 * | Info : *---------------- * | This version: V1.0 * | Date : 2020-04-02 * | 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_1in54b_V2.h" #include "Debug.h" /****************************************************************************** function : Software reset parameter: ******************************************************************************/ static void EPD_1IN54B_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_1IN54B_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_1IN54B_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: ******************************************************************************/ static void EPD_1IN54B_V2_ReadBusy(void) { Debug("e-Paper busy\r\n"); while(1) { if(DEV_Digital_Read(EPD_BUSY_PIN) == 0) break; } DEV_Delay_ms(200); Debug("e-Paper busy release\r\n"); } /****************************************************************************** function : Initialize the e-Paper register parameter: ******************************************************************************/ void EPD_1IN54B_V2_Init(void) { EPD_1IN54B_V2_Reset(); EPD_1IN54B_V2_ReadBusy(); EPD_1IN54B_V2_SendCommand(0x12); //SWRESET EPD_1IN54B_V2_ReadBusy(); EPD_1IN54B_V2_SendCommand(0x01); //Driver output control EPD_1IN54B_V2_SendData(0xC7); EPD_1IN54B_V2_SendData(0x00); EPD_1IN54B_V2_SendData(0x01); EPD_1IN54B_V2_SendCommand(0x11); //data entry mode EPD_1IN54B_V2_SendData(0x01); EPD_1IN54B_V2_SendCommand(0x44); //set Ram-X address start/end position EPD_1IN54B_V2_SendData(0x00); EPD_1IN54B_V2_SendData(0x18); //0x18-->(24+1)*8=200 EPD_1IN54B_V2_SendCommand(0x45); //set Ram-Y address start/end position EPD_1IN54B_V2_SendData(0xC7); //0xC7-->(199+1)=200 EPD_1IN54B_V2_SendData(0x00); EPD_1IN54B_V2_SendData(0x00); EPD_1IN54B_V2_SendData(0x00); EPD_1IN54B_V2_SendCommand(0x3C); //BorderWavefrom EPD_1IN54B_V2_SendData(0x05); EPD_1IN54B_V2_SendCommand(0x18); //Read built-in temperature sensor EPD_1IN54B_V2_SendData(0x80); EPD_1IN54B_V2_SendCommand(0x4E); // set RAM x address count to 0; EPD_1IN54B_V2_SendData(0x00); EPD_1IN54B_V2_SendCommand(0x4F); // set RAM y address count to 0X199; EPD_1IN54B_V2_SendData(0xC7); EPD_1IN54B_V2_SendData(0x00); EPD_1IN54B_V2_ReadBusy(); } /****************************************************************************** function : Clear screen parameter: ******************************************************************************/ void EPD_1IN54B_V2_Clear(void) { unsigned int i; EPD_1IN54B_V2_SendCommand(0x24); //write RAM for black(0)/white (1) for(i=0;i<5000;i++) { EPD_1IN54B_V2_SendData(0xff); } EPD_1IN54B_V2_SendCommand(0x26); //write RAM for black(0)/white (1) for(i=0;i<5000;i++) { EPD_1IN54B_V2_SendData(0x00); } EPD_1IN54B_V2_SendCommand(0x22); //Display Update Control EPD_1IN54B_V2_SendData(0xF7); EPD_1IN54B_V2_SendCommand(0x20); //Activate Display Update Sequence EPD_1IN54B_V2_ReadBusy(); } /****************************************************************************** function : Sends the image buffer in RAM to e-Paper and displays parameter: ******************************************************************************/ void EPD_1IN54B_V2_Display(const UBYTE *blackimage, const UBYTE *redimage) { UWORD Width, Height; Width = (EPD_1IN54B_V2_WIDTH % 8 == 0)? (EPD_1IN54B_V2_WIDTH / 8 ): (EPD_1IN54B_V2_WIDTH / 8 + 1); Height = EPD_1IN54B_V2_HEIGHT; unsigned int i; EPD_1IN54B_V2_SendCommand(0x24); //write RAM for black(0)/white (1) for(i=0;i