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platforms/stm32f7: enable GPIOA before USART2 setup

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Onur Özkan committed 2026-08-01 22:28:06 +03:00
1 parent 482f4c0283
commit 8be8723ead
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platforms/stm32f7/src/f722/board.rs
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@@ -206,6 +206,13 @@ fn initialize_icm42688(
configure_spi3_pins_pc10_pc11_pc12(&device.RCC, &device.GPIOC); configure_spi3_pins_pc10_pc11_pc12(&device.RCC, &device.GPIOC);
configure_exti3_pin_pc3(&device.GPIOC); configure_exti3_pin_pc3(&device.GPIOC);
configure_exti3(&device.RCC, device.SYSCFG, device.EXTI); configure_exti3(&device.RCC, device.SYSCFG, device.EXTI);
// PA2/PA3 writes take effect only after enabling the GPIOA bus clock.
// The ICM route enables GPIOA later for chip select, which is too late for
// the USART2 alternate-function configuration below.
device
.RCC
.ahb1enr()
.modify(|_, write| write.gpioaen().set_bit());
configure_usart2_pins_pa2_pa3(&device.GPIOA); configure_usart2_pins_pa2_pa3(&device.GPIOA);
configure_vertical_pins(&device.RCC, &device.GPIOA, &device.GPIOB, vertical); configure_vertical_pins(&device.RCC, &device.GPIOA, &device.GPIOB, vertical);