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Set the default pin state for GPIOs to pull down.

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This commit is contained in:
Kong Wai Weng 2022-09-12 18:19:33 +08:00
parent 5a053f9ae5
commit aaa2be1200
2 changed files with 42 additions and 0 deletions
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41
ports/espressif/boards/cytron_maker_feather_aiot_s3/board.c
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@ -35,6 +35,47 @@ void board_init(void) {
reset_board(); reset_board();
} }
bool espressif_board_reset_pin_number(gpio_num_t pin_number) {
// For GPIOs used in Maker Feather AIoT S3, set the default state to pull down
// as most of them are connected to active high LED.
switch (pin_number) {
case 4:
case 5:
case 6:
case 7:
case 8:
case 9:
case 10:
case 12:
case 14:
case 15:
case 16:
case 17:
case 18:
case 21:
case 38:
case 39:
case 40:
case 41:
case 42:
case 47:
case 48:
gpio_reset_pin(pin_number);
gpio_pullup_dis(pin_number);
gpio_pulldown_en(pin_number);
return true;
// Do not pull up/down as this is the battery voltage monitoring pin.
case 13:
gpio_reset_pin(pin_number);
gpio_pullup_dis(pin_number);
gpio_pulldown_dis(pin_number);
return true;
}
return false;
}
void reset_board(void) { void reset_board(void) {
// Turn on VP by default. // Turn on VP by default.
gpio_set_direction(11, GPIO_MODE_DEF_OUTPUT); gpio_set_direction(11, GPIO_MODE_DEF_OUTPUT);

1
ports/espressif/boards/cytron_maker_feather_aiot_s3/mpconfigboard.h
View File

@ -30,6 +30,7 @@
#define MICROPY_HW_MCU_NAME "ESP32S3" #define MICROPY_HW_MCU_NAME "ESP32S3"
#define MICROPY_HW_NEOPIXEL (&pin_GPIO46) #define MICROPY_HW_NEOPIXEL (&pin_GPIO46)
#define CIRCUITPY_STATUS_LED_POWER (&pin_GPIO11)
#define MICROPY_HW_LED_STATUS (&pin_GPIO2) #define MICROPY_HW_LED_STATUS (&pin_GPIO2)