aboutsummaryrefslogtreecommitdiff
path: root/examples/stm32/f4/stm32f4-discovery/usart/usart.c
diff options
context:
space:
mode:
Diffstat (limited to 'examples/stm32/f4/stm32f4-discovery/usart/usart.c')
-rw-r--r--examples/stm32/f4/stm32f4-discovery/usart/usart.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/examples/stm32/f4/stm32f4-discovery/usart/usart.c b/examples/stm32/f4/stm32f4-discovery/usart/usart.c
index 6d15744..cac9093 100644
--- a/examples/stm32/f4/stm32f4-discovery/usart/usart.c
+++ b/examples/stm32/f4/stm32f4-discovery/usart/usart.c
@@ -22,7 +22,7 @@
#include <libopencm3/stm32/f4/gpio.h>
#include <libopencm3/stm32/usart.h>
-void clock_setup(void)
+static void clock_setup(void)
{
/* Enable GPIOD clock for LED & USARTs. */
rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPDEN);
@@ -32,7 +32,7 @@ void clock_setup(void)
rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_USART2EN);
}
-void usart_setup(void)
+static void usart_setup(void)
{
/* Setup USART2 parameters. */
usart_set_baudrate(USART2, 38400);
@@ -46,7 +46,7 @@ void usart_setup(void)
usart_enable(USART2);
}
-void gpio_setup(void)
+static void gpio_setup(void)
{
/* Setup GPIO pin GPIO12 on GPIO port D for LED. */
gpio_mode_setup(GPIOD, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO12);