2023-03-10 02:20:01 +08:00

362 lines
11 KiB
C

/*****************************************************************************
* | File : EPD_7in5.c
* | Author : Waveshare team
* | Function : Electronic paper driver
* | Info :
*----------------
* | This version: V2.0
* | Date : 2018-11-09
* | 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_7in5_V2.h"
#ifdef EPD_7IN5_V2
UBYTE Voltage_Frame_7IN5_V2[]={
0x6, 0x3F, 0x3F, 0x11, 0x24, 0x7, 0x17,
};
UBYTE LUT_VCOM_7IN5_V2[]={
0x0, 0xF, 0xF, 0x0, 0x0, 0x1,
0x0, 0xF, 0x1, 0xF, 0x1, 0x2,
0x0, 0xF, 0xF, 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,
};
UBYTE LUT_WW_7IN5_V2[]={
0x10, 0xF, 0xF, 0x0, 0x0, 0x1,
0x84, 0xF, 0x1, 0xF, 0x1, 0x2,
0x20, 0xF, 0xF, 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,
};
UBYTE LUT_BW_7IN5_V2[]={
0x10, 0xF, 0xF, 0x0, 0x0, 0x1,
0x84, 0xF, 0x1, 0xF, 0x1, 0x2,
0x20, 0xF, 0xF, 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,
};
UBYTE LUT_WB_7IN5_V2[]={
0x80, 0xF, 0xF, 0x0, 0x0, 0x1,
0x84, 0xF, 0x1, 0xF, 0x1, 0x2,
0x40, 0xF, 0xF, 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,
};
UBYTE LUT_BB_7IN5_V2[]={
0x80, 0xF, 0xF, 0x0, 0x0, 0x1,
0x84, 0xF, 0x1, 0xF, 0x1, 0x2,
0x40, 0xF, 0xF, 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,
};
/******************************************************************************
function : Software reset
parameter:
******************************************************************************/
static void EPD_Reset(void)
{
EPD_Digital_Write(EPD_RST_PIN, 1);
EPD_Delay_ms(200);
EPD_Digital_Write(EPD_RST_PIN, 0);
EPD_Delay_ms(2);
EPD_Digital_Write(EPD_RST_PIN, 1);
EPD_Delay_ms(200);
}
/******************************************************************************
function : send command
parameter:
Reg : Command register
******************************************************************************/
static void EPD_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_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:
******************************************************************************/
static void EPD_WaitUntilIdle(void)
{
EPD_Printf("e-Paper busy\r\n");
unsigned char busy;
do{
EPD_SendCommand(0x71);
busy = EPD_Digital_Read(EPD_BUSY_PIN);
busy =!(busy & 0x01);
}while(busy);
EPD_Delay_ms(200);
EPD_Printf("e-Paper busy release\r\n");
}
static void EPD_7IN5_V2_LUT(UBYTE* lut_vcom, UBYTE* lut_ww, UBYTE* lut_bw, UBYTE* lut_wb, UBYTE* lut_bb)
{
UBYTE count;
EPD_SendCommand(0x20); //VCOM
for(count=0; count<42; count++)
EPD_SendData(lut_vcom[count]);
EPD_SendCommand(0x21); //LUTBW
for(count=0; count<42; count++)
EPD_SendData(lut_ww[count]);
EPD_SendCommand(0x22); //LUTBW
for(count=0; count<42; count++)
EPD_SendData(lut_bw[count]);
EPD_SendCommand(0x23); //LUTWB
for(count=0; count<42; count++)
EPD_SendData(lut_wb[count]);
EPD_SendCommand(0x24); //LUTBB
for(count=0; count<42; count++)
EPD_SendData(lut_bb[count]);
}
/******************************************************************************
function : Turn On Display
parameter:
******************************************************************************/
static void EPD_7IN5_V2_TurnOnDisplay(void)
{
EPD_SendCommand(0x12); //DISPLAY REFRESH
EPD_Delay_ms(100); //!!!The delay here is necessary, 200uS at least!!!
EPD_WaitUntilIdle();
}
/******************************************************************************
function : Initialize the e-Paper register
parameter:
******************************************************************************/
UBYTE EPD_7IN5_V2_Init(void)
{
EPD_Reset();
// EPD_SendCommand(0x01); //POWER SETTING
// EPD_SendData(0x07);
// EPD_SendData(0x07); //VGH=20V,VGL=-20V
// EPD_SendData(0x3f); //VDH=15V
// EPD_SendData(0x3f); //VDL=-15V
// EPD_SendCommand(0x04); //POWER ON
// EPD_Delay_ms(100);
// EPD_WaitUntilIdle();
// EPD_SendCommand(0X00); //PANNEL SETTING
// EPD_SendData(0x1F); //KW-3f KWR-2F BWROTP 0f BWOTP 1f
// EPD_SendCommand(0x61); //tres
// EPD_SendData(0x03); //source 800
// EPD_SendData(0x20);
// EPD_SendData(0x01); //gate 480
// EPD_SendData(0xE0);
// EPD_SendCommand(0X15);
// EPD_SendData(0x00);
// EPD_SendCommand(0X50); //VCOM AND DATA INTERVAL SETTING
// EPD_SendData(0x10);
// EPD_SendData(0x07);
// EPD_SendCommand(0X60); //TCON SETTING
// EPD_SendData(0x22);
EPD_SendCommand(0x01); // power setting
EPD_SendData(0x17); // 1-0=11: internal power
EPD_SendData(*(Voltage_Frame_7IN5_V2+6)); // VGH&VGL
EPD_SendData(*(Voltage_Frame_7IN5_V2+1)); // VSH
EPD_SendData(*(Voltage_Frame_7IN5_V2+2)); // VSL
EPD_SendData(*(Voltage_Frame_7IN5_V2+3)); // VSHR
EPD_SendCommand(0x82); // VCOM DC Setting
EPD_SendData(*(Voltage_Frame_7IN5_V2+4)); // VCOM
EPD_SendCommand(0x06); // Booster Setting
EPD_SendData(0x27);
EPD_SendData(0x27);
EPD_SendData(0x2F);
EPD_SendData(0x17);
EPD_SendCommand(0x30); // OSC Setting
EPD_SendData(*(Voltage_Frame_7IN5_V2+0)); // 2-0=100: N=4 ; 5-3=111: M=7 ; 3C=50Hz 3A=100HZ
EPD_SendCommand(0x04); //POWER ON
EPD_Delay_ms(100);
EPD_WaitUntilIdle();
EPD_SendCommand(0X00); //PANNEL SETTING
EPD_SendData(0x3F); //KW-3f KWR-2F BWROTP 0f BWOTP 1f
EPD_SendCommand(0x61); //tres
EPD_SendData(0x03); //source 800
EPD_SendData(0x20);
EPD_SendData(0x01); //gate 480
EPD_SendData(0xE0);
EPD_SendCommand(0X15);
EPD_SendData(0x00);
EPD_SendCommand(0X50); //VCOM AND DATA INTERVAL SETTING
EPD_SendData(0x10);
EPD_SendData(0x00);
EPD_SendCommand(0X60); //TCON SETTING
EPD_SendData(0x22);
EPD_SendCommand(0x65); // Resolution setting
EPD_SendData(0x00);
EPD_SendData(0x00);//800*480
EPD_SendData(0x00);
EPD_SendData(0x00);
EPD_7IN5_V2_LUT(LUT_VCOM_7IN5_V2, LUT_WW_7IN5_V2, LUT_BW_7IN5_V2, LUT_WB_7IN5_V2, LUT_BB_7IN5_V2);
return 0;
}
/******************************************************************************
function : Clear screen
parameter:
******************************************************************************/
void EPD_7IN5_V2_Clear(void)
{
UWORD Width, Height;
Width =(EPD_7IN5_V2_WIDTH % 8 == 0)?(EPD_7IN5_V2_WIDTH / 8 ):(EPD_7IN5_V2_WIDTH / 8 + 1);
Height = EPD_7IN5_V2_HEIGHT;
UWORD i;
EPD_SendCommand(0x10);
for(i=0; i<Height*Width; i++) {
EPD_SendData(0x00);
}
EPD_SendCommand(0x13);
for(i=0; i<Height*Width; i++) {
EPD_SendData(0x00);
}
EPD_7IN5_V2_TurnOnDisplay();
}
void EPD_7IN5_V2_ClearBlack(void)
{
UWORD Width, Height;
Width =(EPD_7IN5_V2_WIDTH % 8 == 0)?(EPD_7IN5_V2_WIDTH / 8 ):(EPD_7IN5_V2_WIDTH / 8 + 1);
Height = EPD_7IN5_V2_HEIGHT;
UWORD i;
EPD_SendCommand(0x13);
for(i=0; i<Height*Width; i++) {
EPD_SendData(0xFF);
}
EPD_7IN5_V2_TurnOnDisplay();
}
/******************************************************************************
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
******************************************************************************/
void EPD_7IN5_V2_Display(const UBYTE *blackimage)
{
UDOUBLE Width, Height;
Width =(EPD_7IN5_V2_WIDTH % 8 == 0)?(EPD_7IN5_V2_WIDTH / 8 ):(EPD_7IN5_V2_WIDTH / 8 + 1);
Height = EPD_7IN5_V2_HEIGHT;
//send black data
EPD_SendCommand(0x13);
for (UDOUBLE j = 0; j < Height; j++) {
for (UDOUBLE i = 0; i < Width; i++) {
EPD_SendData(~blackimage[i + j * Width]);
}
}
EPD_7IN5_V2_TurnOnDisplay();
}
void EPD_7IN5_V2_WritePicture(const UBYTE *blackimage, UBYTE Block)
{
UDOUBLE Width, Height;
Width =(EPD_7IN5_V2_WIDTH % 8 == 0)?(EPD_7IN5_V2_WIDTH / 8 ):(EPD_7IN5_V2_WIDTH / 8 + 1);
Height = EPD_7IN5_V2_HEIGHT;
if(Block == 0){
EPD_SendCommand(0x13);
}
for (UDOUBLE j = 0; j < Height/2; j++) {
for (UDOUBLE i = 0; i < Width; i++) {
EPD_SendData(~blackimage[i + j * Width]);
}
}
if(Block == 1){
EPD_7IN5_V2_TurnOnDisplay();
}
}
/******************************************************************************
function : Enter sleep mode
parameter:
******************************************************************************/
void EPD_7IN5_V2_Sleep(void)
{
EPD_SendCommand(0X02); //power off
EPD_WaitUntilIdle();
EPD_SendCommand(0X07); //deep sleep
EPD_SendData(0xA5);
}
#endif