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Diffstat (limited to 'examples/stm32/f4/stm32f4-discovery/button/button.c')
-rw-r--r--examples/stm32/f4/stm32f4-discovery/button/button.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/examples/stm32/f4/stm32f4-discovery/button/button.c b/examples/stm32/f4/stm32f4-discovery/button/button.c
index 0cca193..709900d 100644
--- a/examples/stm32/f4/stm32f4-discovery/button/button.c
+++ b/examples/stm32/f4/stm32f4-discovery/button/button.c
@@ -25,12 +25,12 @@
u16 exti_line_state;
/* Set STM32 to 168 MHz. */
-void clock_setup(void)
+static void clock_setup(void)
{
rcc_clock_setup_hse_3v3(&hse_8mhz_3v3[CLOCK_3V3_168MHZ]);
}
-void gpio_setup(void)
+static void gpio_setup(void)
{
/* Enable GPIOD clock. */
rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPDEN);
@@ -40,7 +40,7 @@ void gpio_setup(void)
GPIO_PUPD_NONE, GPIO12 | GPIO13 | GPIO14 | GPIO15);
}
-void button_setup(void)
+static void button_setup(void)
{
/* Enable GPIOA clock. */
rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPAEN);