EMTime/libopencm3-examples
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stm32f0: eliminate outdated comments

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Fixes: https://github.com/libopencm3/libopencm3-examples/pull/229
This commit is contained in:
Karl Palsson
2021-11-17 12:47:55 +00:00
parent 3a8911627d
commit 9577cd71eb
2 changed files with 10 additions and 10 deletions
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10
examples/stm32/f0/stm32f0-discovery/usart/usart.c
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@@ -28,13 +28,13 @@ static void clock_setup(void)
rcc_periph_clock_enable(RCC_GPIOC); rcc_periph_clock_enable(RCC_GPIOC);
rcc_periph_clock_enable(RCC_GPIOA); rcc_periph_clock_enable(RCC_GPIOA);
/* Enable clocks for USART2. */ /* Enable clocks for USART. */
rcc_periph_clock_enable(RCC_USART1); rcc_periph_clock_enable(RCC_USART1);
} }
static void usart_setup(void) static void usart_setup(void)
{ {
/* Setup USART2 parameters. */ /* Setup USART parameters. */
usart_set_baudrate(USART1, 115200); usart_set_baudrate(USART1, 115200);
usart_set_databits(USART1, 8); usart_set_databits(USART1, 8);
usart_set_parity(USART1, USART_PARITY_NONE); usart_set_parity(USART1, USART_PARITY_NONE);
@@ -51,10 +51,10 @@ static void gpio_setup(void)
/* Setup GPIO pin GPIO8/9 on GPIO port C for LEDs. */ /* Setup GPIO pin GPIO8/9 on GPIO port C for LEDs. */
gpio_mode_setup(GPIOC, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO8 | GPIO9); gpio_mode_setup(GPIOC, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO8 | GPIO9);
/* Setup GPIO pins for USART2 transmit. */ /* Setup GPIO pins for USART transmit. */
gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO9); gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO9);
/* Setup USART1 TX pin as alternate function. */ /* Setup USART TX pin as alternate function. */
gpio_set_af(GPIOA, GPIO_AF1, GPIO9); gpio_set_af(GPIOA, GPIO_AF1, GPIO9);
} }
@@ -66,7 +66,7 @@ int main(void)
gpio_setup(); gpio_setup();
usart_setup(); usart_setup();
/* Blink the LED (PD12) on the board with every transmitted byte. */ /* Blink the LED on the board with every transmitted byte. */
while (1) { while (1) {
gpio_toggle(GPIOC, GPIO8); /* LED on/off */ gpio_toggle(GPIOC, GPIO8); /* LED on/off */
usart_send_blocking(USART1, c + '0'); /* USART1: Send byte. */ usart_send_blocking(USART1, c + '0'); /* USART1: Send byte. */

10
examples/stm32/f0/stm32f0-discovery/usart_stdio/usart_stdio.c
View File

@@ -54,7 +54,7 @@ static ssize_t _iowr(void *_cookie, const char *_buf, size_t _n)
static FILE *usart_setup(uint32_t dev) static FILE *usart_setup(uint32_t dev)
{ {
/* Setup USART2 parameters. */ /* Setup USART parameters. */
usart_set_baudrate(dev, 115200); usart_set_baudrate(dev, 115200);
usart_set_databits(dev, 8); usart_set_databits(dev, 8);
usart_set_parity(dev, USART_PARITY_NONE); usart_set_parity(dev, USART_PARITY_NONE);
@@ -79,7 +79,7 @@ static void clock_setup(void)
rcc_periph_clock_enable(RCC_GPIOC); rcc_periph_clock_enable(RCC_GPIOC);
rcc_periph_clock_enable(RCC_GPIOA); rcc_periph_clock_enable(RCC_GPIOA);
/* Enable clocks for USART2. */ /* Enable clocks for USART. */
rcc_periph_clock_enable(RCC_USART1); rcc_periph_clock_enable(RCC_USART1);
} }
@@ -88,10 +88,10 @@ static void gpio_setup(void)
/* Setup GPIO pin GPIO8/9 on GPIO port C for LEDs. */ /* Setup GPIO pin GPIO8/9 on GPIO port C for LEDs. */
gpio_mode_setup(GPIOC, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO8 | GPIO9); gpio_mode_setup(GPIOC, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO8 | GPIO9);
/* Setup GPIO pins for USART2 transmit. */ /* Setup GPIO pins for USART transmit. */
gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO9); gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO9);
/* Setup USART1 TX pin as alternate function. */ /* Setup USART TX pin as alternate function. */
gpio_set_af(GPIOA, GPIO_AF1, GPIO9); gpio_set_af(GPIOA, GPIO_AF1, GPIO9);
} }
@@ -104,7 +104,7 @@ int main(void)
gpio_setup(); gpio_setup();
fp = usart_setup(USART1); fp = usart_setup(USART1);
/* Blink the LED (PD12) on the board with every transmitted byte. */ /* Blink the LED on the board with every transmitted byte. */
while (1) { while (1) {
gpio_toggle(GPIOC, GPIO8); /* LED on/off */ gpio_toggle(GPIOC, GPIO8); /* LED on/off */