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add arduino code

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hnwangkg-ezio 2019-04-08 17:50:14 +08:00
commit ea758b02ef
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7.5inch_e-paper_code/RaspberryPi/bcm2835/obj/EPD_7in5.c Normal file
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/*****************************************************************************
* | File : EPD_7in5.c
* | Author : Waveshare team
* | Function : Electronic paper driver
* | Info :
*----------------
* | This version: V2.0
* | Date : 2018-11-09
* | Info :
* 1.Remove:ImageBuff[EPD_HEIGHT * EPD_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_7in5.h"
#include "Debug.h"
/******************************************************************************
function : Software reset
parameter:
******************************************************************************/
static void EPD_Reset(void)
{
DEV_Digital_Write(EPD_RST_PIN, 1);
DEV_Delay_ms(200);
DEV_Digital_Write(EPD_RST_PIN, 0);
DEV_Delay_ms(200);
DEV_Digital_Write(EPD_RST_PIN, 1);
DEV_Delay_ms(200);
}
/******************************************************************************
function : send command
parameter:
Reg : Command register
******************************************************************************/
static void EPD_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_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_WaitUntilIdle(void)
{
Debug("e-Paper busy\r\n");
while(DEV_Digital_Read(EPD_BUSY_PIN) == 0) { //LOW: idle, HIGH: busy
DEV_Delay_ms(100);
}
Debug("e-Paper busy release\r\n");
}
/******************************************************************************
function : Turn On Display
parameter:
******************************************************************************/
static void EPD_TurnOnDisplay(void)
{
EPD_SendCommand(DISPLAY_REFRESH);
DEV_Delay_ms(100);
EPD_WaitUntilIdle();
}
/******************************************************************************
function : Initialize the e-Paper register
parameter:
******************************************************************************/
UBYTE EPD_Init(void)
{
EPD_Reset();
EPD_SendCommand(POWER_SETTING);
EPD_SendData(0x37);
EPD_SendData(0x00);
EPD_SendCommand(PANEL_SETTING);
EPD_SendData(0xCF);
EPD_SendData(0x08);
EPD_SendCommand(BOOSTER_SOFT_START);
EPD_SendData(0xc7);
EPD_SendData(0xcc);
EPD_SendData(0x28);
EPD_SendCommand(POWER_ON);
EPD_WaitUntilIdle();
EPD_SendCommand(PLL_CONTROL);
EPD_SendData(0x3c);
EPD_SendCommand(TEMPERATURE_CALIBRATION);
EPD_SendData(0x00);
EPD_SendCommand(VCOM_AND_DATA_INTERVAL_SETTING);
EPD_SendData(0x77);
EPD_SendCommand(TCON_SETTING);
EPD_SendData(0x22);
EPD_SendCommand(TCON_RESOLUTION);
EPD_SendData(EPD_WIDTH >> 8); //source 640
EPD_SendData(EPD_WIDTH & 0xff);
EPD_SendData(EPD_HEIGHT >> 8); //gate 384
EPD_SendData(EPD_HEIGHT & 0xff);
EPD_SendCommand(VCM_DC_SETTING);
EPD_SendData(0x1E); //decide by LUT file
EPD_SendCommand(0xe5); //FLASH MODE
EPD_SendData(0x03);
return 0;
}
/******************************************************************************
function : Clear screen
parameter:
******************************************************************************/
void EPD_Clear(void)
{
UWORD Width, Height;
Width = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
Height = EPD_HEIGHT;
EPD_SendCommand(DATA_START_TRANSMISSION_1);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
for(UBYTE k = 0; k < 4; k++) {
EPD_SendData(0x33);
}
}
}
EPD_TurnOnDisplay();
}
/******************************************************************************
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
******************************************************************************/
void EPD_Display(UBYTE *Image)
{
UBYTE Data_Black, Data;
UWORD Width, Height;
Width = (EPD_WIDTH % 8 == 0)? (EPD_WIDTH / 8 ): (EPD_WIDTH / 8 + 1);
Height = EPD_HEIGHT;
EPD_SendCommand(DATA_START_TRANSMISSION_1);
for (UWORD j = 0; j < Height; j++) {
for (UWORD i = 0; i < Width; i++) {
Data_Black = ~Image[i + j * Width];
for(UBYTE k = 0; k < 8; k++) {
if(Data_Black & 0x80)
Data = 0x00;
else
Data = 0x03;
Data <<= 4;
Data_Black <<= 1;
k++;
if(Data_Black & 0x80)
Data |= 0x00;
else
Data |= 0x03;
Data_Black <<= 1;
EPD_SendData(Data);
}
}
}
EPD_TurnOnDisplay();
}
/******************************************************************************
function : Enter sleep mode
parameter:
******************************************************************************/
void EPD_Sleep(void)
{
EPD_SendCommand(POWER_OFF);
EPD_WaitUntilIdle();
EPD_SendCommand(DEEP_SLEEP);
EPD_SendData(0XA5);;
}