void main()
{
sys_cpuInit();
uint16_t loop_i = 0;
uint8_t ii;
uint8_t count=0;
uint8_t count1=0;
uint8_t count2=0;
/* LED初始化 */
led_init();
//app_ledBothOn();
//app_ledBothOff();
/*串口初始化*/
uart3_init(2400);
/*GPIO初始化*/
gpioInit();
/*延时函数初始化*/
delay_init(12);
uint8_t data[]={'0','1','2','3','4','5','6','7','8','9'};
/* 使能全局中断 */
enableInterrupts();
/***** 程序主循环体 *****/
app_wait(50);
while(1)
{
app_wait(50);
ENP_INIT_H();
ENP_INIT_L();
for( ii=0;ii<4;ii++)//D7 闪光
{
led2_on();
app_wait(1);
led2_off();
app_wait(3);
}
uart3_send(data,10);//发送数据
delay_ms(1);
app_wait(170);
/*3位数全部接受到*/
if(receivedata[0] != 0x01 && receivedata[1] != 0x01 && receivedata[2] != 0x01 )
{
if(receivedata[0] == 'r' && receivedata[1] == 'i' && receivedata[2] == 'g')
{
//接收到1次正确应答
rig++;
count1 ++;
for(uint8_t ii=0;ii<4;ii++)//D6 闪光
{
GPIO_WriteBit(GPIOB,GPIO_Pin_1,RESET);
app_wait(1);
GPIO_WriteBit(GPIOB,GPIO_Pin_1,SET);
app_wait(3);
}
for(loop_i=0;loop_i<3;loop_i++)//清除 存储
{
receivedata[loop_i]=0x01;
}
}
else
{
if(receivedata[0] == 'e' && receivedata[1] == 'r' && receivedata[2] == 'o')
{
ero++;
count2++;
}
for(loop_i=0;loop_i<3;loop_i++)
{
receivedata[loop_i]=0x01;
}
}
}
count++;
if(count == 3)//3次ACK 全正确
{
sss++;
if(count1 ==3)
{
xxx++;
GPIO_WriteBit(GPIOC,GPIO_Pin_4,RESET);
}
else
{
GPIO_WriteBit(GPIOB,GPIO_Pin_2,RESET);
}
count = 0;
count1 = 0;
break;
}
}
UART3_RX_DISABLE();
while(1);
}
INTERRUPT_HANDLER(USART3_RX_TIM5_CC_IRQHandler, 22)
{
/* In order to detect unexpected events during development,
it is recommended to set a breakpoint on the following instruction.
*/
if (USART_GetFlagStatus(USART3, USART_FLAG_RXNE) != RESET)//注意！
{
receivedata[datanum]=USART3->DR;
if (receivedata[datanum] == 57)
{
datanum = 9;
}
datanum++;
led2_on();
uint8_t aa=40;
while(aa--);
led2_off();
if (datanum>9)
{
datanum=0;
}
}
}
这是发送数据 接收应答
void main()
{
uint8_t loop_i=0;
result_t a_a=uart2_send(a,58);
if(a_a==FAILED)
{
ab=1;
}
/*配置HSE 使能看门狗*/
sys_cpuInit();
/* LED初始化 */
led_init();
GPIO_Init(GPIOC, GPIO_Pin_4, GPIO_Mode_Out_PP_High_Fast); /*led D5初始化*/
GPIO_WriteBit( GPIOC, GPIO_Pin_4, SET);
GPIO_Init(GPIOB, GPIO_Pin_2, GPIO_Mode_Out_PP_High_Fast); /*led D4初始化*/
GPIO_WriteBit( GPIOB, GPIO_Pin_2, SET);
uint8_t data1[]={'r','i','g'}; /*接收正确数据 回答码*/
uint8_t data2[]={'e','r','o'}; /*接收错误数据 回答码*/
/*串口初始化*/
uart3_init(2400);
/* 使能全局中断 */
enableInterrupts();
/***** 程序主循环体 *****/
while(1)
{
if ((receivedata[0] != 0x00)
&& (receivedata[1] != 0x00)
&& (receivedata[2] != 0x00)
&& (receivedata[3] != 0x00)
&& (receivedata[4] != 0x00)
&& (receivedata[5] != 0x00)
&& (receivedata[6] != 0x00)
&& (receivedata[7] != 0x00)
&& (receivedata[8] != 0x00)
&& (receivedata[9] != 0x00)) /*判定 10次数据全部放入接收区*/
{
if ((receivedata[0] == 48)
&& (receivedata[1] == 49)
&& (receivedata[2] == 50)
&& (receivedata[3] == 51)
&& (receivedata[4] == 52)
&& (receivedata[5] == 53)
&& (receivedata[6] == 54)
&& (receivedata[7] == 55)
&& (receivedata[8] == 56)
&& (receivedata[9] == 57)) /*接收区的数据为正确数据*/
{
for(loop_i=0;loop_i<10;loop_i++) /*清空接收区数据*/
{
receivedata[loop_i]=0x00;
}
for( loop_i=0;loop_i<4;loop_i++) /*接收正确数据 D6 闪烁*/
{
led3_on();
app_wait(1);
led3_off();
app_wait(3);
}
uart3_send(data1,3); /*接收到正确数据 发送数据"rig"*/
datanum=0;
}
else /*接收的数据为错误数据*/
{
for(loop_i=0;loop_i<10;loop_i++) /*清空数据*/
{
receivedata[loop_i]=0x00;
}
for( loop_i=0;loop_i<4;loop_i++) /*接收错误数据 D5 闪烁*/
{
GPIO_WriteBit(GPIOC, GPIO_Pin_4,RESET);
app_wait(1);
GPIO_WriteBit(GPIOC, GPIO_Pin_4,SET);
app_wait(3);
}
uart3_send(data2,3); /*接收到错误数据 发送数据"ero"*/
datanum=0;
}
}
}
}
INTERRUPT_HANDLER(USART3_RX_TIM5_CC_IRQHandler, 22)
{
yyy++;
/* In order to detect unexpected events during development,
it is recommended to set a breakpoint on the following instruction.
*/
if (USART_GetFlagStatus(USART3, USART_FLAG_RXNE) != RESET)//注意！发送方接收应答
{
receivedata[datanum]=USART3->DR;//接收‘r’or ‘e’
receive[datanum1]=receivedata[datanum];
datanum1 ++;
datanum++;
if(datanum == 3)
{
datanum = 0;
}
}
}
这个是接收数据 发送应答
遇到问题是 有时候发送方 接收应答 回漏掉一次 也就是说只接收到 2次应答共 6个字节
根据yyy变量显示 应答3次回复 收到2次 有一次根本就没进中断 一般是最后一次丢掉 也有
中间丢掉的时候 |
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