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Factor out some code into gpio_setup().

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This commit is contained in:
Uwe Hermann 2009-07-25 01:48:50 +02:00
parent 1f07553863
commit 734a87d4c5
2 changed files with 19 additions and 10 deletions
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18
examples/fancyblink/fancyblink.c
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@ -19,6 +19,7 @@
#include <libopenstm32.h> #include <libopenstm32.h>
/* Set STM32 to 72 MHz. */
void clock_setup(void) void clock_setup(void)
{ {
/* Select HSI as SYSCLK source. */ /* Select HSI as SYSCLK source. */
@ -40,19 +41,22 @@ void clock_setup(void)
rcc_set_sysclk_source(SW_SYSCLKSEL_PLLCLK); rcc_set_sysclk_source(SW_SYSCLKSEL_PLLCLK);
} }
int main(void) void gpio_setup(void)
{ {
int i;
/* Set STM32 to 72 MHz. */
clock_setup();
/* Enable GPIOC clock. */ /* Enable GPIOC clock. */
rcc_enable_peripheral_clock(&RCC_APB2ENR, IOPCEN); rcc_enable_peripheral_clock(&RCC_APB2ENR, IOPCEN);
/* Set GPIO12 (in GPIO port C) to 'output push-pull'. */ /* Set GPIO12 (in GPIO port C) to 'output push-pull'. */
gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ, gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, GPIO12); GPIO_CNF_OUTPUT_PUSHPULL, GPIO12);
}
int main(void)
{
int i;
clock_setup();
gpio_setup();
/* Blink the LED (PC12) on the board. */ /* Blink the LED (PC12) on the board. */
while (1) { while (1) {

11
examples/miniblink/miniblink.c
View File

@ -19,10 +19,8 @@
#include <libopenstm32.h> #include <libopenstm32.h>
int main(void) void gpio_setup(void)
{ {
int i;
/* Enable GPIOC clock. */ /* Enable GPIOC clock. */
/* Manually: */ /* Manually: */
// RCC_APB2ENR |= IOPCEN; // RCC_APB2ENR |= IOPCEN;
@ -36,6 +34,13 @@ int main(void)
/* Using API functions: */ /* Using API functions: */
gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ, gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, GPIO12); GPIO_CNF_OUTPUT_PUSHPULL, GPIO12);
}
int main(void)
{
int i;
gpio_setup();
/* Blink the LED (PC12) on the board. */ /* Blink the LED (PC12) on the board. */
while (1) { while (1) {