82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
#include "led.h"
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int Led_Count=500; //LED flicker time control //LED闪烁时间控制
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/**************************************************************************
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Function: LED interface initialization
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Input : none
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Output : none
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函数功能：LED接口初始化
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入口参数：无
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返回 值：无
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**************************************************************************/
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void LED_Init(void)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);//使能GPIOB时钟
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GPIO_InitStructure.GPIO_Pin = LED_PIN;//LED对应IO口
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;//普通输出模式
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GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;//推挽输出
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;//100MHz
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GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;//上拉
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GPIO_Init(GPIOA, &GPIO_InitStructure);//初始化GPIO
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GPIO_SetBits(GPIOA,GPIO_Pin_12);
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}
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/**************************************************************************
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Function: Buzzer interface initialized
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Input : none
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Output : none
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函数功能：蜂鸣器接口初始化
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入口参数：无
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返回 值：无
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**************************************************************************/
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void Buzzer_Init(void)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);//使能GPIOB时钟
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GPIO_InitStructure.GPIO_Pin = Buzzer_PIN;//LED对应IO口
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;//普通输出模式
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GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;//推挽输出
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;//100MHz
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GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;//上拉
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GPIO_Init(GPIOA, &GPIO_InitStructure);//初始化GPIO
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}
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/**************************************************************************
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Function: LED light flashing task
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Input : none
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Output : none
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函数功能：LED灯闪烁任务
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入口参数：无
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返回 值：无
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**************************************************************************/
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void led_task(void *pvParameters)
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{
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while(1)
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{
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//The status of the LED is reversed. 0 is on and 1 is off
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//LED状态取反，0是点亮，1是熄灭
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LED=~LED;
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//The LED flicker task is very simple, requires low frequency accuracy, and uses the relative delay function
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//LED闪烁任务非常简单，对频率精度要求低，使用相对延时函数
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vTaskDelay(Led_Count);
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}
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}
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/**************************************************************************
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Function: The LED flashing
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Input : none
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Output : blink time
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函数功能：LED闪烁
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入口参数：闪烁时间
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返 回 值：无
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**************************************************************************/
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void Led_Flash(u16 time)
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{
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static int temp;
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if(0==time) LED=0;
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else if(++temp==time) LED=~LED,temp=0;
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}
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