/***************************************************************************** * | File : EPD_1in54c.C * | Author : Waveshare team * | Function : 1.54inch e-paper c * | Info : *---------------- * | This version: V3.1 * | Date : 2019-06-12 * | Info : * ----------------------------------------------------------------------------- * V3.1(2019-06-12): * 1.Change: * EPD_Reset() => EPD_1IN54C_Reset() * EPD_SendCommand() => EPD_1IN54C_SendCommand() * EPD_SendData() => EPD_1IN54C_SendData() * EPD_WaitUntilIdle() => EPD_1IN54C_ReadBusy() * EPD_Init() => EPD_1IN54C_Init() * EPD_Clear() => EPD_1IN54C_Clear() * EPD_Display() => EPD_1IN54C_Display() * EPD_Sleep() => EPD_1IN54C_Sleep() * 2.remove commands define: * #define PANEL_SETTING 0x00 * #define POWER_SETTING 0x01 * #define POWER_OFF 0x02 * #define POWER_OFF_SEQUENCE_SETTING 0x03 * #define POWER_ON 0x04 * #define POWER_ON_MEASURE 0x05 * #define BOOSTER_SOFT_START 0x06 * #define DEEP_SLEEP 0x07 * #define DATA_START_TRANSMISSION_1 0x10 * #define DATA_STOP 0x11 * #define DISPLAY_REFRESH 0x12 * #define DATA_START_TRANSMISSION_2 0x13 * #define PLL_CONTROL 0x30 * #define TEMPERATURE_SENSOR_COMMAND 0x40 * #define TEMPERATURE_SENSOR_CALIBRATION 0x41 * #define TEMPERATURE_SENSOR_WRITE 0x42 * #define TEMPERATURE_SENSOR_READ 0x43 * #define VCOM_AND_DATA_INTERVAL_SETTING 0x50 * #define LOW_POWER_DETECTION 0x51 * #define TCON_SETTING 0x60 * #define TCON_RESOLUTION 0x61 * #define SOURCE_AND_GATE_START_SETTING 0x62 * #define GET_STATUS 0x71 * #define AUTO_MEASURE_VCOM 0x80 * #define VCOM_VALUE 0x81 * #define VCM_DC_SETTING_REGISTER 0x82 * #define PROGRAM_MODE 0xA0 * #define ACTIVE_PROGRAM 0xA1 * #define READ_OTP_DATA 0xA2 * ----------------------------------------------------------------------------- * V2.0(2018-11-14): * 1.Remove:ImageBuff[EPD_1IN54C_HEIGHT * EPD_1IN54C_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_1in54c.h" #include "Debug.h" /****************************************************************************** function : Software reset parameter: ******************************************************************************/ static void EPD_1IN54C_Reset(void) { DEV_Digital_Write(EPD_RST_PIN, 1); DEV_Delay_ms(10); DEV_Digital_Write(EPD_RST_PIN, 0); DEV_Delay_ms(2); DEV_Digital_Write(EPD_RST_PIN, 1); DEV_Delay_ms(10); } /****************************************************************************** function : send command parameter: Reg : Command register ******************************************************************************/ static void EPD_1IN54C_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_1IN54C_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_1IN54C_ReadBusy(void) { unsigned char busy; do { EPD_1IN54C_SendCommand(0x71); busy = DEV_Digital_Read(EPD_BUSY_PIN); busy =!(busy & 0x01); } while(busy); DEV_Delay_ms(200); } /****************************************************************************** function : Initialize the e-Paper register parameter: ******************************************************************************/ void EPD_1IN54C_Init(void) { EPD_1IN54C_Reset(); EPD_1IN54C_SendCommand(0x06); //boost soft start EPD_1IN54C_SendData(0x17); EPD_1IN54C_SendData(0x17); EPD_1IN54C_SendData(0x17); EPD_1IN54C_SendCommand(0x04); EPD_1IN54C_ReadBusy(); EPD_1IN54C_SendCommand(0x00); //panel setting EPD_1IN54C_SendData(0x0f); //LUT from OTP£¬160x296 EPD_1IN54C_SendData(0x0d); //VCOM to 0V fast EPD_1IN54C_SendCommand(0x61); //resolution setting EPD_1IN54C_SendData(0x98); //152 EPD_1IN54C_SendData(0x00); //152 EPD_1IN54C_SendData(0x98); EPD_1IN54C_SendCommand(0X50); //VCOM AND DATA INTERVAL SETTING EPD_1IN54C_SendData(0x77); //WBmode:VBDF 17|D7 VBDW 97 VBDB 57 WBRmode:VBDF F7 VBDW 77 VBDB 37 VBDR B7 } /****************************************************************************** function : Clear screen parameter: ******************************************************************************/ void EPD_1IN54C_Clear(void) { UWORD Width, Height; Width = (EPD_1IN54C_WIDTH % 8 == 0)? (EPD_1IN54C_WIDTH / 8 ): (EPD_1IN54C_WIDTH / 8 + 1); Height = EPD_1IN54C_HEIGHT; //send black data EPD_1IN54C_SendCommand(0x10); for(UWORD i = 0; i < Height; i++) { for(UWORD i = 0; i < Width; i++) { EPD_1IN54C_SendData(0xFF); } } //send red data EPD_1IN54C_SendCommand(0x13); for(UWORD i = 0; i < Height; i++) { for(UWORD i = 0; i < Width; i++) { EPD_1IN54C_SendData(0xFF); } } //Display refresh EPD_1IN54C_SendCommand(0x12); EPD_1IN54C_ReadBusy(); } /****************************************************************************** function : Sends the image buffer in RAM to e-Paper and displays parameter: ******************************************************************************/ void EPD_1IN54C_Display(const UBYTE *blackimage, const UBYTE *redimage) { UWORD Width, Height; Width = (EPD_1IN54C_WIDTH % 8 == 0)? (EPD_1IN54C_WIDTH / 8 ): (EPD_1IN54C_WIDTH / 8 + 1); Height = EPD_1IN54C_HEIGHT; //send black data EPD_1IN54C_SendCommand(0x10); for (UWORD j = 0; j < Height; j++) { for (UWORD i = 0; i < Width; i++) { EPD_1IN54C_SendData(blackimage[i + j * Width]); } } //send red data EPD_1IN54C_SendCommand(0x13); for (UWORD j = 0; j < Height; j++) { for (UWORD i = 0; i < Width; i++) { EPD_1IN54C_SendData(redimage[i + j * Width]); } } //Display refresh EPD_1IN54C_SendCommand(0x12); EPD_1IN54C_ReadBusy(); } /****************************************************************************** function : Enter sleep mode parameter: ******************************************************************************/ void EPD_1IN54C_Sleep(void) { EPD_1IN54C_SendCommand(0X02); //power off EPD_1IN54C_ReadBusy(); EPD_1IN54C_SendCommand(0X07); //deep sleep EPD_1IN54C_SendData(0xA5); }