//USART串口接收长度以及标志位 uint8_t USART2_STA = 0; uint8_t USART3_STA = 0; //指纹ID和验证指纹的分数 uint16_t PageID,MatchScore; //USART串口接收缓冲数组 uint8_t USART2_ReceiveBuffer[20]; uint8_t USART3_ReceiveBuffer[6]; //主循环状态标志位 uint8_t ScanStatus = 0; //三种模式对应的命令 const char StringEnroll[7] = "Enroll"; //注册 const char StringEmpty[7] = "Empty"; //清空 const char StringDelete[7] = "Delete"; //删除 //模块LED灯控制协议 uint8_t PS_BlueLEDBuffer[16] = {0xEF,0x01,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x07,0x3C,0x03,0x01,0x01,0x00,0x00,0x49}; uint8_t PS_RedLEDBuffer[16] = {0xEF,0x01,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x07,0x3C,0x02,0x04,0x04,0x02,0x00,0x50}; uint8_t PS_GreenLEDBuffer[16] = {0xEF,0x01,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x07,0x3C,0x02,0x02,0x02,0x02,0x00,0x4C}; //模块睡眠协议 uint8_t PS_SleepBuffer[12] = {0xEF,0x01,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x03,0x33,0x00,0x37}; //清空指纹协议 uint8_t PS_EmptyBuffer[12] = {0xEF,0x01,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x03,0x0D,0x00,0x11}; //取消命令协议 uint8_t PS_CancelBuffer[12] = {0xEF,0x01,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x03,0x30,0x00,0x34}; //自动注册指纹协议 uint8_t PS_AutoEnrollBuffer[17] = {0xEF,0x01,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x08,0x31,'\0','\0',0x04,0x00,0x16,'\0','\0'}; //PageID: bit 10:11，SUM: bit 15:16 //模块搜索用获取图像协议 uint8_t PS_GetImageBuffer[12] = {0xEF,0x01,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x03,0x01,0x00,0x05}; //模块生成模板协议 uint8_t PS_GetChar1Buffer[13] = {0xEF,0x01,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x04,0x02,0x01,0x00,0x08}; uint8_t PS_GetChar2Buffer[13] = {0xEF,0x01,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x04,0x02,0x02,0x00,0x09}; //模块搜索指纹功能协议 uint8_t PS_SearchMBBuffer[17] = {0xEF,0x01,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x08,0x04,0x01,0x00,0x00,0xFF,0xFF,0x02,0x0C}; //删除指纹协议 uint8_t PS_DeleteBuffer[16] = {0xEF,0x01,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x07,0x0C,'\0','\0',0x00,0x01,'\0','\0'}; //PageID: bit 10:11，SUM: bit 14:15，根据代码指纹模块该咋连接到开发板中

这段代码是针对一个指纹模块的控制程序，使用USART串口进行通信。其中定义了一些变量和数组，包括USART接收长度和标志位、指纹ID和验证指纹的分数、USART串口接收缓冲数组、三种模式对应的命令、模块LED灯控制协议、模块睡眠协议、清空指纹协议、取消命令协议、自动注册指纹协议、模块搜索用获取图像协议、模块生成模板协议、模块搜索指纹功能协议和删除指纹协议。具体的指纹模块连接方式需要根据代码和指纹模块的具体型号来确定。

相关问题

void TA3_0_IRQHandler(void) { /*开始填充用户代码*/ uint32_t status=GPIO_getEnabledInterruptStatus(TIMER_A3_BASE); if(status & TIMER_A_CAPTURECOMPARE_INTERRUPT_FLAG ) //更新中断; { USART3_RX_STA|=1<<15; //标记接收完成 MAP_Timer_A_clearCaptureCompareInterrupt(TIMER_A3_BASE, TIMER_A_CAPTURECOMPARE_REGISTER_0);//清除中断标志位 Timer_A_disableCaptureCompareInterrupt(TIMER_A3_BASE,TIMER_A_CAPTURECOMPARE_REGISTER_0); } /*结束填充用户代码*/ }

这是一个名为 `TA3_0_IRQHandler` 的中断处理函数的定义。根据代码中的注释，中断处理函数主要用于处理定时器A3的捕获/比较中断。

在函数中，首先使用 `GPIO_getEnabledInterruptStatus` 函数获取定时器A3的使能中断状态。然后通过位操作和位掩码检查是否发生了捕获/比较中断。

如果发生了捕获/比较中断，代码会执行以下操作：
- 设置标志位 `USART3_RX_STA` 的第15位，用于标记接收完成。
- 使用 `Timer_A_clearCaptureCompareInterrupt` 函数清除定时器A3的捕获/比较中断标志位。
- 使用 `Timer_A_disableCaptureCompareInterrupt` 函数禁用定时器A3的捕获/比较中断。

在注释中提到的 "开始填充用户代码" 和 "结束填充用户代码" 之间的部分是你可以填充自己的代码的位置。你可以在这个位置添加你希望在捕获/比较中断发生时执行的自定义代码。

请注意，以上代码只是中断处理函数的定义部分，你需要在代码中正确配置定时器和相关外设，并将该中断处理函数与定时器A3的捕获/比较中断关联起来。

STM32 标准库 将结构中6个不同的数据与之后更新的这六个数据进行对比，如果不同则标志位++并保存之前的数据在结构体数组中, 但是没有将USART3中的数据传给要检测是否一样的数据，请修改void Openmv_RXtask(void) { if((Openmv_Flag == 1)&&(USART3_RX_BUF[3]!=0 )) { Openmv.Color_Num = USART3_RX_BUF[2]; Openmv.Shape_Num = USART3_RX_BUF[3]; Openmv.Openmv_X = USART3_RX_BUF[4] | USART3_RX_BUF[5] <<8; Openmv.Openmv_Y = USART3_RX_BUF[6] | USART3_RX_BUF[7] <<8; Openmv.Openmv_W = USART3_RX_BUF[8] | USART3_RX_BUF[9] <<8; Openmv.Openmv_H = USART3_RX_BUF[10]| USART3_RX_BUF[11]<<8; Openmv_Flag = 0; USART3_RX_STA = 0; // printf("%d\r\n",Openmv.Shape_Num); //USART_ITConfig(USART3,USART_IT_RXNE,ENABLE); } }inline void checkAndUpdate(Openmv_InitTypeDef *myStruct) { printf("没进来了\r\n"); static uint16_t prevData1, prevData2, prevData3, prevData4, prevData5, prevData6; printf("%d\r\n",prevData1); if (myStruct->Color_Num != prevData1 || myStruct->Shape_Num != prevData2 || myStruct->Openmv_X != prevData3 || myStruct->Openmv_Y != prevData4 || myStruct->Openmv_W != prevData5 || myStruct->Openmv_H != prevData6) { printf("进来了\r\n"); OpenmvArray[myStruct->flag] = *myStruct; myStruct->flag++; // 保存之前的数据到结构体数组中 prevData1 = myStruct->Color_Num; prevData2 = myStruct->Shape_Num; prevData3 = myStruct->Openmv_X; prevData4 = myStruct->Openmv_Y; prevData5 = myStruct->Openmv_W; prevData6 = myStruct->Openmv_H; } }

你需要把 USART3 接收到的数据传递给 checkAndUpdate 函数进行比较。修改后的代码如下：

void Openmv_RXtask(void) {
    if((Openmv_Flag == 1)&&(USART3_RX_STA & 0x8000)) {
        Openmv.Color_Num = USART3_RX_BUF[2];
        Openmv.Shape_Num = USART3_RX_BUF[3];
        Openmv.Openmv_X = USART3_RX_BUF[4] | USART3_RX_BUF[5] <<8;
        Openmv.Openmv_Y = USART3_RX_BUF[6] | USART3_RX_BUF[7] <<8;
        Openmv.Openmv_W = USART3_RX_BUF[8] | USART3_RX_BUF[9] <<8;
        Openmv.Openmv_H = USART3_RX_BUF[10]| USART3_RX_BUF[11]<<8;
        Openmv_Flag = 0;
        USART3_RX_STA = 0;
        checkAndUpdate(&Openmv); // 将结构体传递给 checkAndUpdate 函数进行比较
    }
}

inline void checkAndUpdate(Openmv_InitTypeDef *myStruct) {
    static uint16_t prevData1, prevData2, prevData3, prevData4, prevData5, prevData6;
    if (myStruct->Color_Num != prevData1 || myStruct->Shape_Num != prevData2 ||
        myStruct->Openmv_X != prevData3 || myStruct->Openmv_Y != prevData4 ||
        myStruct->Openmv_W != prevData5 || myStruct->Openmv_H != prevData6) {
        OpenmvArray[myStruct->flag] = *myStruct;
        myStruct->flag++;
        prevData1 = myStruct->Color_Num;
        prevData2 = myStruct->Shape_Num;
        prevData3 = myStruct->Openmv_X;
        prevData4 = myStruct->Openmv_Y;
        prevData5 = myStruct->Openmv_W;
        prevData6 = myStruct->Openmv_H;
    }
}

修改后的代码中，我们增加了一个判断 USART3_RX_STA 是否为接收完成标志位的判断，只有当接收完成后才会进行处理。同时，在 Openmv_RXtask 函数中，我们将结构体传递给 checkAndUpdate 函数进行比较。