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path: root/examples/stm32/f1/stm32-h103/usart_irq/usart_irq.c
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Diffstat (limited to 'examples/stm32/f1/stm32-h103/usart_irq/usart_irq.c')
-rw-r--r--examples/stm32/f1/stm32-h103/usart_irq/usart_irq.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/examples/stm32/f1/stm32-h103/usart_irq/usart_irq.c b/examples/stm32/f1/stm32-h103/usart_irq/usart_irq.c
index a2d8eef..8237c63 100644
--- a/examples/stm32/f1/stm32-h103/usart_irq/usart_irq.c
+++ b/examples/stm32/f1/stm32-h103/usart_irq/usart_irq.c
@@ -31,8 +31,7 @@ void clock_setup(void)
/* Enable clocks for GPIO port A (for GPIO_USART1_TX) and USART1. */
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN |
- RCC_APB2ENR_AFIOEN |
- RCC_APB2ENR_USART1EN);
+ RCC_APB2ENR_AFIOEN | RCC_APB2ENR_USART1EN);
}
void usart_setup(void)
@@ -42,7 +41,7 @@ void usart_setup(void)
/* Setup GPIO pin GPIO_USART1_RE_TX on GPIO port B for transmit. */
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
- GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX);
+ GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX);
/* Setup GPIO pin GPIO_USART1_RE_RX on GPIO port B for receive. */
gpio_set_mode(GPIOA, GPIO_MODE_INPUT,
@@ -67,7 +66,7 @@ void gpio_setup(void)
{
gpio_set(GPIOC, GPIO12);
- /* Setup GPIO6 and 7 (in GPIO port A) for led use. */
+ /* Setup GPIO6 and 7 (in GPIO port A) for LED use. */
gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, GPIO12);
}
@@ -78,7 +77,7 @@ void usart1_isr(void)
/* Check if we were called because of RXNE. */
if (((USART_CR1(USART1) & USART_CR1_RXNEIE) != 0) &&
- ((USART_SR(USART1) & USART_SR_RXNE) != 0)) {
+ ((USART_SR(USART1) & USART_SR_RXNE) != 0)) {
/* Indicate that we got data. */
gpio_toggle(GPIOC, GPIO12);
@@ -92,10 +91,10 @@ void usart1_isr(void)
/* Check if we were called because of TXE. */
if (((USART_CR1(USART1) & USART_CR1_TXEIE) != 0) &&
- ((USART_SR(USART1) & USART_SR_TXE) != 0)) {
+ ((USART_SR(USART1) & USART_SR_TXE) != 0)) {
/* Indicate that we are sending out data. */
- //gpio_toggle(GPIOA, GPIO7);
+ // gpio_toggle(GPIOA, GPIO7);
/* Put data into the transmit register. */
usart_send(USART1, data);