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board_stm32h743nucleo: Implement user button for mouse/keyboard demo.

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This commit is contained in:
William D. Jones 2019-09-03 01:19:38 -04:00
parent f703a74daa
commit 4ce8796b2a
1 changed files with 10 additions and 2 deletions
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12
hw/bsp/stm32h743nucleo/board_stm32h743nucleo.c
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@ -32,6 +32,8 @@
#define LED_PORT GPIOB
#define LED_PIN GPIO_PIN_0
#define BUTTON_PORT GPIOC
#define BUTTON_PIN GPIO_PIN_13
/* PWR, RCC, GPIO (All): AHB4 (D3 domain)
USB{1,2} OTG_{H,F}S: AHB1 (D2 domain)
@ -164,6 +166,13 @@ void board_init(void)
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(LED_PORT, &GPIO_InitStruct);
__HAL_RCC_GPIOC_CLK_ENABLE();
GPIO_InitStruct.Pin = BUTTON_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(BUTTON_PORT, &GPIO_InitStruct);
// https://community.st.com/s/question/0D50X00009XkYZLSA3/stm32h7-nucleo-usb-fs-cdc
// TODO: Board init actually works fine without this line.
HAL_PWREx_EnableUSBVoltageDetector();
@ -181,8 +190,7 @@ void board_led_write(bool state)
uint32_t board_button_read(void)
{
// TODO implement
return 0;
return HAL_GPIO_ReadPin(BUTTON_PORT, BUTTON_PIN);
}
int board_uart_read(uint8_t* buf, int len)