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led_clock-old
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fix enable USART port

This commit is contained in:
King Kévin 2016-04-13 21:00:00 +02:00
parent 68749ef851
commit 281c9924f6
1 changed files with 2 additions and 0 deletions
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2
lib/usart.c
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@ -41,6 +41,7 @@
#define USART_IRQ NVIC_USART1_IRQ /**< USART peripheral interrupt signal */
#define USART_ISR usart1_isr /**< USART interrupt service routine */
#define USART_PORT GPIOA /**< USART port */
#define USART_PORT_RCC RCC_GPIOA /**< USART port peripheral clock */
#define USART_PIN_TX GPIO_USART1_TX /**< USART transmit pin (PA9) */
#define USART_PIN_RX GPIO_USART1_RX /**< USART receive pin (PA10) */
/** @} */
@ -59,6 +60,7 @@ volatile uint8_t usart_received = 0; // same as rx_used, but since the user can
void usart_setup(void)
{
/* enable USART I/O peripheral */
rcc_periph_clock_enable(USART_PORT_RCC); // enable clock for USART port peripheral
rcc_periph_clock_enable(USART_RCC); // enable clock for USART peripheral
gpio_set_mode(USART_PORT, GPIO_MODE_OUTPUT_10_MHZ, GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, USART_PIN_TX); // setup GPIO pin USART transmit
gpio_set_mode(USART_PORT, GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, USART_PIN_RX); // setup GPIO pin USART receive