stm32/boards/PYBD_SFx: Configure EN_3V3 pin as output on boot.

dpgeorge · dpgeorge · commit 1cd2bc066de7 · 2019-07-04T11:03:10.000+10:00
But leave it turned off, the application must turn it on if/when needed.
diff --git a/ports/stm32/boards/PYBD_SF2/board_init.c b/ports/stm32/boards/PYBD_SF2/board_init.c
@@ -33,6 +33,9 @@ void mboot_board_early_init(void) {
 }
 
 void board_early_init(void) {
+    // Configure EN_3V3 as an output pin, but keep it turned off
+    mp_hal_pin_config(pyb_pin_EN_3V3, MP_HAL_PIN_MODE_OUTPUT, MP_HAL_PIN_PULL_NONE, 0);
+
     // Explicitly init SPI2 because it's not enabled as a block device
     spi_bdev_ioctl(&spi_bdev2, BDEV_IOCTL_INIT, (uint32_t)&spiflash2_config);
 }

Original file line number	Diff line number	Diff line change
`@@ -33,6 +33,9 @@ void mboot_board_early_init(void) {`
`33`	`33`	`}`
`34`	`34`
`35`	`35`	`void board_early_init(void) {`
	`36`	`+ // Configure EN_3V3 as an output pin, but keep it turned off`
	`37`	`+ mp_hal_pin_config(pyb_pin_EN_3V3, MP_HAL_PIN_MODE_OUTPUT, MP_HAL_PIN_PULL_NONE, 0);`
	`38`	`+`
`36`	`39`	`// Explicitly init SPI2 because it's not enabled as a block device`
`37`	`40`	`spi_bdev_ioctl(&spi_bdev2, BDEV_IOCTL_INIT, (uint32_t)&spiflash2_config);`
`38`	`41`	`}`