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Fix power issues when booting up on RPI - Spectra 6 13.3' #383

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Fix power issues when booting up on RPI - Spectra 6 13.3' #383

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12 changes: 7 additions & 5 deletions E-paper_Separate_Program/13.3inch_e-Paper_E/RaspberryPi/c/lib/Config/DEV_Config.c
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Original file line number Diff line number Diff line change
Expand Up @@ -184,23 +184,25 @@ function: Initialization pin
******************************************************************************/
static void DEV_GPIOConfig(void)
{
DEV_GPIO_Mode(EPD_SCK_PIN, 1);
DEV_GPIO_Mode(EPD_PWR_PIN, 1); // handle PWR pin first
DEV_Digital_Write(EPD_PWR_PIN, 0); // power off HAT+ before resetting values

DEV_GPIO_Mode(EPD_SCK_PIN, 1);
DEV_GPIO_Mode(EPD_SI0_PIN, 1);
DEV_GPIO_Mode(EPD_CS_M_PIN, 1);
DEV_GPIO_Mode(EPD_CS_S_PIN, 1);
DEV_GPIO_Mode(EPD_DC_PIN, 1);
DEV_GPIO_Mode(EPD_RST_PIN, 1);
DEV_GPIO_Mode(EPD_BUSY_PIN, 0);
DEV_GPIO_Mode(EPD_PWR_PIN, 1);

DEV_Digital_Write(EPD_SCK_PIN, 0);
DEV_Digital_Write(EPD_SI0_PIN, 0);
DEV_Digital_Write(EPD_CS_M_PIN, 0);
DEV_Digital_Write(EPD_CS_S_PIN, 0);
DEV_Digital_Write(EPD_CS_M_PIN, 1); // CS is low active, thus high
DEV_Digital_Write(EPD_CS_S_PIN, 1); // same applies
DEV_Digital_Write(EPD_DC_PIN, 0);
DEV_Digital_Write(EPD_RST_PIN, 0);
// DEV_Digital_Write(EPD_BUSY_PIN, 0);
DEV_Digital_Write(EPD_PWR_PIN, 1);
DEV_Digital_Write(EPD_PWR_PIN, 1); // turn power on
}

/******************************************************************************
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