#ifndef __EPD4IN20_H_
#define __EPD4IN20_H_
#include "stm32f1xx_hal.h"
#include "board.h"

void EPD_W21_WriteCMD(uint8_t command);
void EPD_W21_WriteDATA(uint8_t command);


void WriteBuffer(unsigned  char *picture);
void DisplayRefresh(void);
void CheckStatus(void);
void Display_Init(void);

#endif 
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