doc/display/e-Paper-master/RaspberryPi_JetsonNano/c/lib/e-Paper/EPD_4in37b.c
static void EPD_4IN37B_ReadBusy(void)
{
    Debug("e-Paper busy\r\n");
    DEV_Delay_ms(50);
    while(DEV_Digital_Read(EPD_BUSY_PIN) == 0) {      //LOW: idle, HIGH: busy
        DEV_Delay_ms(10);
    }
    DEV_Delay_ms(50);
    Debug("e-Paper busy release\r\n");
}
/******************************************************************************
function :	Wait until the busy_pin goes LOW
parameter:
******************************************************************************/
function :      Wait until the busy_pin goes LOW
parameter.
function : Wait until the busy_pin goes LOW parameter .
static void EPD_4IN37B_ReadBusy(void)
{
    Debug("e-Paper busy\r\n");
    DEV_Delay_ms(50);
    while(DEV_Digital_Read(EPD_BUSY_PIN) == 0) {      
        DEV_Delay_ms(10);
    }
    DEV_Delay_ms(50);
    Debug("e-Paper busy release\r\n");
}
static void EPD_4IN37B_ReadBusy ( void ) { Debug ( " \r \n " ) ; DEV_Delay_ms ( 50 ) ; while ( DEV_Digital_Read ( EPD_BUSY_PIN ) == 0 ) { DEV_Delay_ms ( 10 ) ; } DEV_Delay_ms ( 50 ) ; Debug ( " \r \n " ) ; }
function :      Wait until the busy_pin goes LOW
parameter:
function : Wait until the busy_pin goes LOW parameter :
//LOW: idle, HIGH: busy