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stm32: Add UART4 to stm32h7 (#4848) 

Signed-off-by: Aaron DeLyser <bluwolf@gmail.com>
This commit is contained in:
adelyser 2021-11-19 08:27:56 -07:00 committed by GitHub
parent 08dab6f825
commit a5ec751406
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 13 additions and 2 deletions
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15
src/stm32/stm32h7_serial.c
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@ -48,6 +48,17 @@
#define GPIO_Tx GPIO('D', 8)
#define USARTx USART3
#define USARTx_IRQn USART3_IRQn
#elif CONFIG_STM32_SERIAL_UART4
DECL_CONSTANT_STR("RESERVE_PINS_serial", "PA1,PA0");
#define GPIO_Rx GPIO('A', 1)
#define GPIO_Tx GPIO('A', 0)
#define USARTx UART4
#define USARTx_IRQn UART4_IRQn
#define USARTx_FUNCTION GPIO_FUNCTION(8)
#endif
#ifndef USARTx_FUNCTION
#define USARTx_FUNCTION GPIO_FUNCTION(7)
#endif
#define CR1_FLAGS (USART_CR1_UE | USART_CR1_RE | USART_CR1_TE \
@ -88,7 +99,7 @@ serial_init(void)
USARTx->CR1 = CR1_FLAGS;
armcm_enable_irq(USARTx_IRQHandler, USARTx_IRQn, 0);
gpio_peripheral(GPIO_Rx, GPIO_FUNCTION(7), 1);
gpio_peripheral(GPIO_Tx, GPIO_FUNCTION(7), 0);
gpio_peripheral(GPIO_Rx, USARTx_FUNCTION, 1);
gpio_peripheral(GPIO_Tx, USARTx_FUNCTION, 0);
}
DECL_INIT(serial_init);