181 lines
4.4 KiB
C
181 lines
4.4 KiB
C
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//#include "uart_my.h"
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//#include "exit.h"
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//#include "led.h"
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#include "usart.h"
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#define __DATA_CHANNEL_C__
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#include "data_channel.h"
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u8 Zigbee_Rx_Max =8;
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u8 Wifi_Rx_num =0;
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u8 Wifi_Rx_flag=0;
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u8 Zigbee_Rx_num =0;
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u8 Zigbee_Rx_flag=0;
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u8 Zigbee_RxZt_flag =0;
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u8 rxd1_timer4_1ms,rxd1_timer4_flag;
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/***************************************************************
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** 功能： 定时器4中断服务函数
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** 参数： 无参数
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** 返回值： 无
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****************************************************************/
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void TIM4_IRQHandler(void)
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{
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/* if(TIM4->SR&0X0001) // 溢出中断
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{
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rxd1_timer4_1ms++;
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if(rxd1_timer4_1ms>5) // 5ms时间已到，数据帧接收完成
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{
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rxd1_timer4_flag=1;
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TIM4->CR1&=~(0x01); // 关使能定时器4
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Wifi_Rx_flag =1;
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}
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}
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TIM4->SR&=~(1<<0); // 清除中断标志位 */
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if(TIM_GetITStatus(TIM4,TIM_FLAG_Update) == SET)
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{
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rxd1_timer4_1ms++;
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if(rxd1_timer4_1ms>5) // 5ms时间已到，数据帧接收完成
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{
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rxd1_timer4_flag=1;
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TIM_Cmd(TIM4,ENABLE);
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Wifi_Rx_flag =1;
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}
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TIM_ClearITPendingBit(TIM4,TIM_FLAG_Update);
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}
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}
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/***************************************************************
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** 功能： 定时器4中断初始化
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** 参数： arr：自动重装值
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** psc：时钟预分频数
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** 返回值： 无
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****************************************************************/
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void Timer4_Init(u16 arr,u16 psc)
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{
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TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
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NVIC_InitTypeDef NVIC_InitStructure;
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE); //时钟使能
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//定时器TIM4初始化
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TIM_TimeBaseStructure.TIM_Period = arr; //设置在下一个更新事件装入活动的自动重装载寄存器周期的值
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TIM_TimeBaseStructure.TIM_Prescaler =psc; //设置用来作为TIMx时钟频率除数的预分频值
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TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //设置时钟分割:TDTS = Tck_tim
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TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //TIM向上计数模式
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TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); //根据指定的参数初始化TIMx的时间基数单位
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TIM_ITConfig(TIM4,TIM_IT_Update,ENABLE ); //使能指定的TIM4中断,允许更新中断
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//中断优先级NVIC设置
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NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
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NVIC_InitStructure.NVIC_IRQChannel = TIM4_IRQn; //TIM4中断
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; //先占优先级0级
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; //从优先级3级
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道被使能
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NVIC_Init(&NVIC_InitStructure); //初始化NVIC寄存器
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TIM_Cmd(TIM4, ENABLE); //使能TIMx
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}
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void Wifi_data_Receive( u8 res) // wifi 数据接收处理
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{
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rxd1_timer4_1ms=0;
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if(rxd1_timer4_flag==1) // 5ms时间 数据帧重新开始
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{
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rxd1_timer4_flag=0;
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TIM4->CR1|=0x01; //使能定时器4
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Wifi_Rx_num =0;
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Wifi_Rx_Buf[Wifi_Rx_num]=res;
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}
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else if(Wifi_Rx_num < WIFI_MAX_NUM )
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{
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Wifi_Rx_Buf[++Wifi_Rx_num]=res; // 接收数据帧
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}
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else // 数据超出最大接收数据长度时，舍去不要
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{
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;
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}
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}
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void Zigbee_data_Receive( u8 res) // zigbee 数据接收处理
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{
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u8 sum;
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if(Zigbee_Rx_num >0)
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{
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Zigb_Rx_Buf[Zigbee_Rx_num]=res;
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Zigbee_Rx_num++;
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}
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else if (res==0x55) // 寻找包头
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{
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Zigb_Rx_Buf[0]=res;
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Zigbee_Rx_num=1;
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}
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else Zigbee_Rx_num =0;
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if(Zigbee_Rx_num >= Zigbee_Rx_Max)
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{
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if((Zigb_Rx_Buf[Zigbee_Rx_Max -1]==0xbb)&&(Zigbee_RxZt_flag ==0)&&(Zigb_Rx_Buf[1]!=0xfd)) // 判断包尾 //change by ygm
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{
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//主指令与三位副指令左求和校验
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//注意：在求和溢出时应该对和做256取余。
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Zigbee_Rx_num=0; // 计数清零
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Zigbee_RxZt_flag =0; // 接收状态清零
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sum=(Zigb_Rx_Buf[2]+Zigb_Rx_Buf[3]+Zigb_Rx_Buf[4]+Zigb_Rx_Buf[5])%256;
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if(sum==Zigb_Rx_Buf[6])
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{
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Zigbee_Rx_flag =1; // 指令验证正确，标志位置1
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}
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else {Zigbee_Rx_flag =0;}
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}
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else if((Zigb_Rx_Buf[1]==0xfd)&&(Zigbee_RxZt_flag ==0))
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{
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if(Zigb_Rx_Buf[2]>8)
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{
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Zigbee_Rx_Max = Zigb_Rx_Buf[2];
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Zigbee_RxZt_flag =1; // 接收状态1 接着接收数据
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}
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else
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{
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Zigbee_Rx_num=0; // 计数清零
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if(Zigb_Rx_Buf[Zigbee_Rx_Max-1]==0xbb)
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{
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Zigbee_RxZt_flag =0; // 接收状态清零
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// send_Flag=1; //change by ygm
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Zigbee_Rx_Max =8;
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}
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}
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}
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else if((Zigbee_RxZt_flag ==1)&&(Zigb_Rx_Buf[Zigbee_Rx_Max -1]==0xbb))
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{
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Zigbee_Rx_num=0; // 计数清零
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Zigbee_RxZt_flag =0; // 接收状态清零
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// send_Flag=1;
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Zigbee_Rx_Max =8;
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}
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else {Zigbee_Rx_flag =0; Zigbee_Rx_num =0;} //接收错误指令，打开蜂鸣器
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}
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}
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