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stmhal: Add support for UART5 

I tested this on my CERB40 board and it seems to be working fine.
This commit is contained in:
Dave Hylands 2015-05-31 15:37:37 -07:00 committed by Damien George
parent 18fda7b42f
commit 3ac2d06bd1
3 changed files with 40 additions and 0 deletions
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4
stmhal/boards/CERB40/mpconfigboard.h
View File

@ -38,6 +38,10 @@
#define MICROPY_HW_UART3_CTS (GPIO_PIN_11)
#define MICROPY_HW_UART4_PORT (GPIOA)
#define MICROPY_HW_UART4_PINS (GPIO_PIN_0 | GPIO_PIN_1)
#define MICROPY_HW_UART5_TX_PORT (GPIOC)
#define MICROPY_HW_UART5_TX_PIN (GPIO_PIN_12)
#define MICROPY_HW_UART5_RX_PORT (GPIOD)
#define MICROPY_HW_UART5_RX_PIN (GPIO_PIN_2)
#define MICROPY_HW_UART6_PORT (GPIOC)
#define MICROPY_HW_UART6_PINS (GPIO_PIN_6 | GPIO_PIN_7)

4
stmhal/stm32f4xx_it.c
View File

@ -413,6 +413,10 @@ void UART4_IRQHandler(void) {
uart_irq_handler(4);
}
void UART5_IRQHandler(void) {
uart_irq_handler(5);
}
void USART6_IRQHandler(void) {
uart_irq_handler(6);
}

32
stmhal/uart.c
View File

@ -185,6 +185,31 @@ STATIC bool uart_init2(pyb_uart_obj_t *uart_obj) {
break;
#endif
#if defined(UART5) && \
defined(MICROPY_HW_UART5_TX_PORT) && \
defined(MICROPY_HW_UART5_TX_PIN) && \
defined(MICROPY_HW_UART5_RX_PORT) && \
defined(MICROPY_HW_UART5_RX_PIN)
case PYB_UART_5:
UARTx = UART5;
irqn = UART5_IRQn;
GPIO_AF_UARTx = GPIO_AF8_UART5;
GPIO_Port = MICROPY_HW_UART5_TX_PORT;
GPIO_Pin = MICROPY_HW_UART5_TX_PIN;
__UART5_CLK_ENABLE();
// The code after the case only deals with the case where the TX & RX
// pins are on the same port. UART5 has them on different ports.
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.Pin = MICROPY_HW_UART5_RX_PIN;
GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
GPIO_InitStructure.Pull = GPIO_PULLUP;
GPIO_InitStructure.Alternate = GPIO_AF_UARTx;
HAL_GPIO_Init(MICROPY_HW_UART5_RX_PORT, &GPIO_InitStructure);
break;
#endif
#if defined(MICROPY_HW_UART6_PORT) && defined(MICROPY_HW_UART6_PINS)
// USART6 is on PC6/PC7 (CK on PC8)
case PYB_UART_6:
@ -596,6 +621,13 @@ STATIC mp_obj_t pyb_uart_deinit(mp_obj_t self_in) {
__UART4_RELEASE_RESET();
__UART4_CLK_DISABLE();
#endif
#if defined(UART5)
} else if (uart->Instance == UART5) {
HAL_NVIC_DisableIRQ(UART5_IRQn);
__UART5_FORCE_RESET();
__UART5_RELEASE_RESET();
__UART5_CLK_DISABLE();
#endif
} else if (uart->Instance == USART6) {
HAL_NVIC_DisableIRQ(USART6_IRQn);
__USART6_FORCE_RESET();