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362 lines
11 KiB
C
362 lines
11 KiB
C
/*****************************************************************************
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* | File : EPD_7in5.c
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* | Author : Waveshare team
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* | Function : Electronic paper driver
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* | Info :
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*----------------
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* | This version: V2.0
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* | Date : 2018-11-09
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* | Info :
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*****************************************************************************
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documnetation files(the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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******************************************************************************/
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#include "EPD_7in5_V2.h"
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#ifdef EPD_7IN5_V2
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UBYTE Voltage_Frame_7IN5_V2[]={
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0x6, 0x3F, 0x3F, 0x11, 0x24, 0x7, 0x17,
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};
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UBYTE LUT_VCOM_7IN5_V2[]={
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0x0, 0xF, 0xF, 0x0, 0x0, 0x1,
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0x0, 0xF, 0x1, 0xF, 0x1, 0x2,
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0x0, 0xF, 0xF, 0x0, 0x0, 0x1,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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};
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UBYTE LUT_WW_7IN5_V2[]={
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0x10, 0xF, 0xF, 0x0, 0x0, 0x1,
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0x84, 0xF, 0x1, 0xF, 0x1, 0x2,
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0x20, 0xF, 0xF, 0x0, 0x0, 0x1,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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};
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UBYTE LUT_BW_7IN5_V2[]={
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0x10, 0xF, 0xF, 0x0, 0x0, 0x1,
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0x84, 0xF, 0x1, 0xF, 0x1, 0x2,
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0x20, 0xF, 0xF, 0x0, 0x0, 0x1,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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};
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UBYTE LUT_WB_7IN5_V2[]={
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0x80, 0xF, 0xF, 0x0, 0x0, 0x1,
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0x84, 0xF, 0x1, 0xF, 0x1, 0x2,
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0x40, 0xF, 0xF, 0x0, 0x0, 0x1,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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};
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UBYTE LUT_BB_7IN5_V2[]={
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0x80, 0xF, 0xF, 0x0, 0x0, 0x1,
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0x84, 0xF, 0x1, 0xF, 0x1, 0x2,
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0x40, 0xF, 0xF, 0x0, 0x0, 0x1,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
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};
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/******************************************************************************
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function : Software reset
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parameter:
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******************************************************************************/
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static void EPD_Reset(void)
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{
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EPD_Digital_Write(EPD_RST_PIN, 1);
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EPD_Delay_ms(200);
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EPD_Digital_Write(EPD_RST_PIN, 0);
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EPD_Delay_ms(2);
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EPD_Digital_Write(EPD_RST_PIN, 1);
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EPD_Delay_ms(200);
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}
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/******************************************************************************
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function : send command
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parameter:
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Reg : Command register
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******************************************************************************/
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static void EPD_SendCommand(UBYTE Reg)
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{
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EPD_Digital_Write(EPD_DC_PIN, 0);
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EPD_Digital_Write(EPD_CS_PIN, 0);
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EPD_SPI_WriteByte(Reg);
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EPD_Digital_Write(EPD_CS_PIN, 1);
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}
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/******************************************************************************
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function : send data
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parameter:
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Data : Write data
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******************************************************************************/
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static void EPD_SendData(UBYTE Data)
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{
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EPD_Digital_Write(EPD_DC_PIN, 1);
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EPD_Digital_Write(EPD_CS_PIN, 0);
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EPD_SPI_WriteByte(Data);
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EPD_Digital_Write(EPD_CS_PIN, 1);
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}
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/******************************************************************************
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function : Wait until the busy_pin goes LOW
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parameter:
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******************************************************************************/
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static void EPD_WaitUntilIdle(void)
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{
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EPD_Printf("e-Paper busy\r\n");
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unsigned char busy;
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do{
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EPD_SendCommand(0x71);
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busy = EPD_Digital_Read(EPD_BUSY_PIN);
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busy =!(busy & 0x01);
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}while(busy);
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EPD_Delay_ms(200);
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EPD_Printf("e-Paper busy release\r\n");
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}
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static void EPD_7IN5_V2_LUT(UBYTE* lut_vcom, UBYTE* lut_ww, UBYTE* lut_bw, UBYTE* lut_wb, UBYTE* lut_bb)
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{
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UBYTE count;
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EPD_SendCommand(0x20); //VCOM
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for(count=0; count<42; count++)
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EPD_SendData(lut_vcom[count]);
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EPD_SendCommand(0x21); //LUTBW
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for(count=0; count<42; count++)
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EPD_SendData(lut_ww[count]);
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EPD_SendCommand(0x22); //LUTBW
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for(count=0; count<42; count++)
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EPD_SendData(lut_bw[count]);
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EPD_SendCommand(0x23); //LUTWB
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for(count=0; count<42; count++)
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EPD_SendData(lut_wb[count]);
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EPD_SendCommand(0x24); //LUTBB
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for(count=0; count<42; count++)
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EPD_SendData(lut_bb[count]);
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}
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/******************************************************************************
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function : Turn On Display
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parameter:
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******************************************************************************/
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static void EPD_7IN5_V2_TurnOnDisplay(void)
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{
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EPD_SendCommand(0x12); //DISPLAY REFRESH
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EPD_Delay_ms(100); //!!!The delay here is necessary, 200uS at least!!!
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EPD_WaitUntilIdle();
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}
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/******************************************************************************
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function : Initialize the e-Paper register
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parameter:
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******************************************************************************/
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UBYTE EPD_7IN5_V2_Init(void)
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{
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EPD_Reset();
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// EPD_SendCommand(0x01); //POWER SETTING
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// EPD_SendData(0x07);
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// EPD_SendData(0x07); //VGH=20V,VGL=-20V
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// EPD_SendData(0x3f); //VDH=15V
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// EPD_SendData(0x3f); //VDL=-15V
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// EPD_SendCommand(0x04); //POWER ON
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// EPD_Delay_ms(100);
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// EPD_WaitUntilIdle();
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// EPD_SendCommand(0X00); //PANNEL SETTING
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// EPD_SendData(0x1F); //KW-3f KWR-2F BWROTP 0f BWOTP 1f
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// EPD_SendCommand(0x61); //tres
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// EPD_SendData(0x03); //source 800
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// EPD_SendData(0x20);
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// EPD_SendData(0x01); //gate 480
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// EPD_SendData(0xE0);
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// EPD_SendCommand(0X15);
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// EPD_SendData(0x00);
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// EPD_SendCommand(0X50); //VCOM AND DATA INTERVAL SETTING
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// EPD_SendData(0x10);
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// EPD_SendData(0x07);
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// EPD_SendCommand(0X60); //TCON SETTING
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// EPD_SendData(0x22);
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EPD_SendCommand(0x01); // power setting
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EPD_SendData(0x17); // 1-0=11: internal power
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EPD_SendData(*(Voltage_Frame_7IN5_V2+6)); // VGH&VGL
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EPD_SendData(*(Voltage_Frame_7IN5_V2+1)); // VSH
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EPD_SendData(*(Voltage_Frame_7IN5_V2+2)); // VSL
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EPD_SendData(*(Voltage_Frame_7IN5_V2+3)); // VSHR
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EPD_SendCommand(0x82); // VCOM DC Setting
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EPD_SendData(*(Voltage_Frame_7IN5_V2+4)); // VCOM
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EPD_SendCommand(0x06); // Booster Setting
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EPD_SendData(0x27);
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EPD_SendData(0x27);
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EPD_SendData(0x2F);
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EPD_SendData(0x17);
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EPD_SendCommand(0x30); // OSC Setting
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EPD_SendData(*(Voltage_Frame_7IN5_V2+0)); // 2-0=100: N=4 ; 5-3=111: M=7 ; 3C=50Hz 3A=100HZ
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EPD_SendCommand(0x04); //POWER ON
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EPD_Delay_ms(100);
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EPD_WaitUntilIdle();
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EPD_SendCommand(0X00); //PANNEL SETTING
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EPD_SendData(0x3F); //KW-3f KWR-2F BWROTP 0f BWOTP 1f
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EPD_SendCommand(0x61); //tres
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EPD_SendData(0x03); //source 800
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EPD_SendData(0x20);
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EPD_SendData(0x01); //gate 480
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EPD_SendData(0xE0);
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EPD_SendCommand(0X15);
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EPD_SendData(0x00);
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EPD_SendCommand(0X50); //VCOM AND DATA INTERVAL SETTING
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EPD_SendData(0x10);
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EPD_SendData(0x00);
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EPD_SendCommand(0X60); //TCON SETTING
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EPD_SendData(0x22);
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EPD_SendCommand(0x65); // Resolution setting
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EPD_SendData(0x00);
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EPD_SendData(0x00);//800*480
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EPD_SendData(0x00);
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EPD_SendData(0x00);
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EPD_7IN5_V2_LUT(LUT_VCOM_7IN5_V2, LUT_WW_7IN5_V2, LUT_BW_7IN5_V2, LUT_WB_7IN5_V2, LUT_BB_7IN5_V2);
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return 0;
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}
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/******************************************************************************
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function : Clear screen
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parameter:
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******************************************************************************/
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void EPD_7IN5_V2_Clear(void)
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{
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UWORD Width, Height;
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Width =(EPD_7IN5_V2_WIDTH % 8 == 0)?(EPD_7IN5_V2_WIDTH / 8 ):(EPD_7IN5_V2_WIDTH / 8 + 1);
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Height = EPD_7IN5_V2_HEIGHT;
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UWORD i;
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EPD_SendCommand(0x10);
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for(i=0; i<Height*Width; i++) {
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EPD_SendData(0x00);
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}
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EPD_SendCommand(0x13);
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for(i=0; i<Height*Width; i++) {
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EPD_SendData(0x00);
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}
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EPD_7IN5_V2_TurnOnDisplay();
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}
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void EPD_7IN5_V2_ClearBlack(void)
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{
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UWORD Width, Height;
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Width =(EPD_7IN5_V2_WIDTH % 8 == 0)?(EPD_7IN5_V2_WIDTH / 8 ):(EPD_7IN5_V2_WIDTH / 8 + 1);
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Height = EPD_7IN5_V2_HEIGHT;
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UWORD i;
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EPD_SendCommand(0x13);
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for(i=0; i<Height*Width; i++) {
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EPD_SendData(0xFF);
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}
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EPD_7IN5_V2_TurnOnDisplay();
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}
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/******************************************************************************
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function : Sends the image buffer in RAM to e-Paper and displays
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parameter:
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******************************************************************************/
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void EPD_7IN5_V2_Display(const UBYTE *blackimage)
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{
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UDOUBLE Width, Height;
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Width =(EPD_7IN5_V2_WIDTH % 8 == 0)?(EPD_7IN5_V2_WIDTH / 8 ):(EPD_7IN5_V2_WIDTH / 8 + 1);
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Height = EPD_7IN5_V2_HEIGHT;
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//send black data
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EPD_SendCommand(0x13);
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for (UDOUBLE j = 0; j < Height; j++) {
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for (UDOUBLE i = 0; i < Width; i++) {
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EPD_SendData(~blackimage[i + j * Width]);
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}
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}
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EPD_7IN5_V2_TurnOnDisplay();
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}
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void EPD_7IN5_V2_WritePicture(const UBYTE *blackimage, UBYTE Block)
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{
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UDOUBLE Width, Height;
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Width =(EPD_7IN5_V2_WIDTH % 8 == 0)?(EPD_7IN5_V2_WIDTH / 8 ):(EPD_7IN5_V2_WIDTH / 8 + 1);
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Height = EPD_7IN5_V2_HEIGHT;
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if(Block == 0){
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EPD_SendCommand(0x13);
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}
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for (UDOUBLE j = 0; j < Height/2; j++) {
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for (UDOUBLE i = 0; i < Width; i++) {
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EPD_SendData(~blackimage[i + j * Width]);
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}
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}
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if(Block == 1){
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EPD_7IN5_V2_TurnOnDisplay();
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}
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}
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/******************************************************************************
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function : Enter sleep mode
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parameter:
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******************************************************************************/
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void EPD_7IN5_V2_Sleep(void)
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{
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EPD_SendCommand(0X02); //power off
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EPD_WaitUntilIdle();
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EPD_SendCommand(0X07); //deep sleep
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EPD_SendData(0xA5);
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}
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#endif
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