Merge remote-tracking branch 'origin/main'
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commit
bebd847122
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@ -32,10 +32,7 @@
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#include "common-hal/microcontroller/Pin.h"
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void board_init(void) {
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// Turn on I2C
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common_hal_never_reset_pin(&pin_GPIO7);
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gpio_set_direction(7, GPIO_MODE_DEF_OUTPUT);
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gpio_set_level(7, false);
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reset_board();
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}
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bool board_requests_safe_mode(void) {
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@ -71,12 +71,13 @@ uint8_t display_init_sequence[] = {
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void board_init(void) {
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// I2C/TFT power pin
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// Never reset the I2C/TFT power pin because doing so will reset the display.
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// Instead, on reset set the default value and free the pin for user use.
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// Relying on the normal pin reset would briefly float/pull the pin that
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// could lead to a power brownout.
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common_hal_never_reset_pin(&pin_GPIO21);
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// Turn on TFT and I2C
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gpio_set_direction(21, GPIO_MODE_DEF_OUTPUT);
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gpio_set_level(21, true);
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reset_board();
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busio_spi_obj_t *spi = common_hal_board_create_spi(0);
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displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
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@ -138,8 +139,13 @@ bool board_requests_safe_mode(void) {
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}
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void reset_board(void) {
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// Turn on TFT and I2C
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gpio_set_direction(21, GPIO_MODE_DEF_OUTPUT);
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gpio_set_level(21, true);
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free_pin_number(21);
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}
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void board_deinit(void) {
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// TODO: Should we turn off the display when asleep?
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}
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@ -133,6 +133,10 @@ void claim_pin(const mcu_pin_obj_t *pin) {
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in_use[pin->number / 32] |= (1 << (pin->number % 32));
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}
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void free_pin_number(gpio_num_t pin_number) {
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in_use[pin_number / 32] &= ~(1 << (pin_number % 32));
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}
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void common_hal_mcu_pin_claim(const mcu_pin_obj_t *pin) {
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claim_pin(pin);
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}
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@ -39,6 +39,8 @@ void common_hal_reset_pin(const mcu_pin_obj_t *pin);
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void common_hal_never_reset_pin(const mcu_pin_obj_t *pin);
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void claim_pin(const mcu_pin_obj_t *pin);
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void claim_pin_number(gpio_num_t pin_number);
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// Free the pin without resetting it.
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void free_pin_number(gpio_num_t pin_number);
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bool pin_number_is_free(gpio_num_t pin_number);
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void never_reset_pin_number(gpio_num_t pin_number);
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