/*****************************************************************************
* | File : EPD_2in66.c
* | Author : Waveshare team
* | Function : 2.66inch e-paper
* | Info :
*----------------
* | This version: V1.0
* | Date : 2020-07-29
* | 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_2in66.h"
#include "Debug.h"
const unsigned char WF_PARTIAL[159] ={
0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x40,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x0A,0x00,0x00,0x00,0x00,0x00,0x02,0x01,0x00,0x00,
0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x22,0x22,0x22,0x22,0x22,0x22,
0x00,0x00,0x00,0x22,0x17,0x41,0xB0,0x32,0x36,
};
/******************************************************************************
function : Software reset
parameter:
******************************************************************************/
static void EPD_2IN66_Reset(void)
{
DEV_Digital_Write(EPD_RST_PIN, 1);
DEV_Delay_ms(200);
DEV_Digital_Write(EPD_RST_PIN, 0);
DEV_Delay_ms(2);
DEV_Digital_Write(EPD_RST_PIN, 1);
DEV_Delay_ms(200);
}
/******************************************************************************
function : send command
parameter:
Reg : Command register
******************************************************************************/
static void EPD_2IN66_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_2IN66_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_2IN66_ReadBusy(void)
{
Debug("e-Paper busy\r\n");
DEV_Delay_ms(100);
while(DEV_Digital_Read(EPD_BUSY_PIN) == 1) { //LOW: idle, HIGH: busy
DEV_Delay_ms(100);
}
DEV_Delay_ms(100);
Debug("e-Paper busy release\r\n");
}
/******************************************************************************
function : Turn On Display
parameter:
******************************************************************************/
static void EPD_2IN66_TurnOnDisplay(void)
{
EPD_2IN66_SendCommand(0x20);
EPD_2IN66_ReadBusy();
}
/******************************************************************************
function : Send LUT
parameter:
******************************************************************************/
static void EPD_2IN66_SetLUA(void)
{
UWORD count;
EPD_2IN66_SendCommand(0x32);
for(count=0;count<153;count++){
EPD_2IN66_SendData(WF_PARTIAL[count]);
}
EPD_2IN66_ReadBusy();
}
/******************************************************************************
function : Initialize the e-Paper register
parameter:
******************************************************************************/
void EPD_2IN66_Init(void)
{
EPD_2IN66_Reset();
EPD_2IN66_ReadBusy();
EPD_2IN66_SendCommand(0x12);//soft reset
EPD_2IN66_ReadBusy();
/* Y increment, X increment */
EPD_2IN66_SendCommand(0x11);
EPD_2IN66_SendData(0x03);
/* Set RamX-address Start/End position */
EPD_2IN66_SendCommand(0x44);
EPD_2IN66_SendData(0x01);
EPD_2IN66_SendData((EPD_2IN66_WIDTH % 8 == 0)? (EPD_2IN66_WIDTH / 8 ): (EPD_2IN66_WIDTH / 8 + 1) );
/* Set RamY-address Start/End position */
EPD_2IN66_SendCommand(0x45);
EPD_2IN66_SendData(0);
EPD_2IN66_SendData(0);
EPD_2IN66_SendData((EPD_2IN66_HEIGHT&0xff));
EPD_2IN66_SendData((EPD_2IN66_HEIGHT&0x100)>>8);
EPD_2IN66_ReadBusy();
}
/******************************************************************************
function : Initialize the e-Paper register(Partial display)
parameter:
******************************************************************************/
void EPD_2IN66_Init_Partial(void)
{
EPD_2IN66_Reset();
EPD_2IN66_ReadBusy();
EPD_2IN66_SendCommand(0x12);//soft reset
EPD_2IN66_ReadBusy();
EPD_2IN66_SetLUA();
EPD_2IN66_SendCommand(0x37);
EPD_2IN66_SendData(0x00);
EPD_2IN66_SendData(0x00);
EPD_2IN66_SendData(0x00);
EPD_2IN66_SendData(0x00);
EPD_2IN66_SendData(0x00);
EPD_2IN66_SendData(0x40);
EPD_2IN66_SendData(0x00);
EPD_2IN66_SendData(0x00);
EPD_2IN66_SendData(0x00);
EPD_2IN66_SendData(0x00);
/* Y increment, X increment */
EPD_2IN66_SendCommand(0x11);
EPD_2IN66_SendData(0x03);
/* Set RamX-address Start/End position */
EPD_2IN66_SendCommand(0x44);
EPD_2IN66_SendData(0x01);
EPD_2IN66_SendData((EPD_2IN66_WIDTH % 8 == 0)? (EPD_2IN66_WIDTH / 8 ): (EPD_2IN66_WIDTH / 8 + 1) );
/* Set RamY-address Start/End position */
EPD_2IN66_SendCommand(0x45);
EPD_2IN66_SendData(0);
EPD_2IN66_SendData(0);
EPD_2IN66_SendData((EPD_2IN66_HEIGHT&0xff));
EPD_2IN66_SendData((EPD_2IN66_HEIGHT&0x100)>>8);
EPD_2IN66_SendCommand(0x3C);
EPD_2IN66_SendData(0x80);
EPD_2IN66_SendCommand(0x22);
EPD_2IN66_SendData(0xcf);
EPD_2IN66_SendCommand(0x20);
EPD_2IN66_ReadBusy();
}
/******************************************************************************
function : Clear screen
parameter:
******************************************************************************/
void EPD_2IN66_Clear(void)
{
UWORD Width, Height;
Width = (EPD_2IN66_WIDTH % 8 == 0)? (EPD_2IN66_WIDTH / 8 ): (EPD_2IN66_WIDTH / 8 + 1);
Height = EPD_2IN66_HEIGHT;
EPD_2IN66_SendCommand(0x24);
for (UWORD j = 0; j <=Height; j++) {
for (UWORD i = 0; i < Width; i++) {
EPD_2IN66_SendData(0xff);
}
}
EPD_2IN66_TurnOnDisplay();
}
/******************************************************************************
function : Sends the image buffer in RAM to e-Paper and displays
parameter:
******************************************************************************/
void EPD_2IN66_Display(UBYTE *Image)
{
UWORD Width, Height;
Width = (EPD_2IN66_WIDTH % 8 == 0)? (EPD_2IN66_WIDTH / 8 ): (EPD_2IN66_WIDTH / 8 + 1);
Height = EPD_2IN66_HEIGHT;
UDOUBLE Addr = 0;
// UDOUBLE Offset = ImageName;
EPD_2IN66_SendCommand(0x24);
for (UWORD j = 0; j <Height; j++) {
for (UWORD i = 0; i <Width; i++) {
Addr = i + j * Width;
EPD_2IN66_SendData(Image[Addr]);
}
}
EPD_2IN66_TurnOnDisplay();
}
/******************************************************************************
function : Enter sleep mode
parameter:
******************************************************************************/
void EPD_2IN66_Sleep(void)
{
EPD_2IN66_SendCommand(0x10);
EPD_2IN66_SendData(0x01);
//EPD_2IN66_ReadBusy();
}