diff options
Diffstat (limited to 'src/stm/ao_serial_stm.c')
| -rw-r--r-- | src/stm/ao_serial_stm.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/src/stm/ao_serial_stm.c b/src/stm/ao_serial_stm.c index c625471e..ef562313 100644 --- a/src/stm/ao_serial_stm.c +++ b/src/stm/ao_serial_stm.c @@ -195,7 +195,7 @@ ao_usart_set_speed(struct ao_stm_usart *usart, uint8_t speed) } static void -ao_usart_init(struct ao_stm_usart *usart) +ao_usart_init(struct ao_stm_usart *usart, int hw_flow) { usart->reg->cr1 = ((0 << STM_USART_CR1_OVER8) | (1 << STM_USART_CR1_UE) | @@ -236,6 +236,10 @@ ao_usart_init(struct ao_stm_usart *usart) (0 << STM_USART_CR3_IREN) | (0 << STM_USART_CR3_EIE)); + if (hw_flow) + usart->reg->cr3 |= ((1 << STM_USART_CR3_CTSE) | + (1 << STM_USART_CR3_RTSE)); + /* Pick a 9600 baud rate */ ao_usart_set_speed(usart, AO_SERIAL_SPEED_9600); } @@ -244,8 +248,6 @@ ao_usart_init(struct ao_stm_usart *usart) static void ao_usart_set_flow(struct ao_stm_usart *usart) { - usart->reg->cr3 |= ((1 << STM_USART_CR3_CTSE) | - (1 << STM_USART_CR3_RTSE)); } #endif @@ -441,7 +443,7 @@ ao_serial_init(void) stm_rcc.apb2enr |= (1 << STM_RCC_APB2ENR_USART1EN); ao_stm_usart1.reg = &stm_usart1; - ao_usart_init(&ao_stm_usart1); + ao_usart_init(&ao_stm_usart1, 0); stm_nvic_set_enable(STM_ISR_USART1_POS); stm_nvic_set_priority(STM_ISR_USART1_POS, AO_STM_NVIC_MED_PRIORITY); @@ -494,10 +496,7 @@ ao_serial_init(void) stm_rcc.apb1enr |= (1 << STM_RCC_APB1ENR_USART2EN); ao_stm_usart2.reg = &stm_usart2; - ao_usart_init(&ao_stm_usart2); -#if USE_SERIAL_2_FLOW && !USE_SERIAL_2_SW_FLOW - ao_usart_set_flow(&ao_stm_usart2); -#endif + ao_usart_init(&ao_stm_usart2, USE_SERIAL_2_FLOW && !USE_SERIAL_2_SW_FLOW); stm_nvic_set_enable(STM_ISR_USART2_POS); stm_nvic_set_priority(STM_ISR_USART2_POS, AO_STM_NVIC_MED_PRIORITY); @@ -541,7 +540,7 @@ ao_serial_init(void) stm_rcc.apb1enr |= (1 << STM_RCC_APB1ENR_USART3EN); ao_stm_usart3.reg = &stm_usart3; - ao_usart_init(&ao_stm_usart3); + ao_usart_init(&ao_stm_usart3, 0); stm_nvic_set_enable(STM_ISR_USART3_POS); stm_nvic_set_priority(STM_ISR_USART3_POS, AO_STM_NVIC_MED_PRIORITY); |