72 lines
1.5 KiB
C
72 lines
1.5 KiB
C
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#include <rtthread.h>
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#include <stm32f10x.h>
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#define RCC_APB2Periph_GPIO_LED RCC_APB2Periph_GPIOF
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#define GPIO_LED GPIOF
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#define GPIO_Pin_LED GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9
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static const rt_uint16_t led_map[] = {GPIO_Pin_6, GPIO_Pin_7, GPIO_Pin_8, GPIO_Pin_9
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};
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static rt_uint8_t led_inited = 0;
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static void GPIO_Configuration(void)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_LED;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(GPIO_LED, &GPIO_InitStructure);
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}
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void LED_Configuration(void)
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{
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/* enable led clock */
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIO_LED, ENABLE);
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GPIO_Configuration();
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}
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void rt_hw_led_init()
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{
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/* init led configuration if it's not inited. */
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if (!led_inited)
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{
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LED_Configuration();
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led_inited = 1;
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}
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}
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void rt_hw_led_on(rt_uint32_t led)
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{
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if (led < sizeof(led_map)/sizeof(rt_uint16_t))
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GPIO_SetBits(GPIO_LED, led_map[led]);
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}
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void rt_hw_led_off(rt_uint32_t led)
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{
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if (led < sizeof(led_map)/sizeof(rt_uint16_t))
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GPIO_ResetBits(GPIO_LED, led_map[led]);
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}
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#ifdef RT_USING_FINSH
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#include <finsh.h>
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void led(rt_uint32_t led, rt_uint32_t value)
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{
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/* init led configuration if it's not inited. */
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if (!led_inited)
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{
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LED_Configuration();
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led_inited = 1;
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}
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/* set led status */
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if (value)
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rt_hw_led_on(led);
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else
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rt_hw_led_off(led);
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}
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FINSH_FUNCTION_EXPORT(led, set led[0 - 3] on[1] or off[0].)
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#endif
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