还是那句话不能掉以轻心，全力以赴吧，遇事不要慌，该做的都做了，冷静沉稳的处理，看看配置，看看代码，还是不行就重启，都没问题换个板子
下面对比较复杂的部分的处理过程进行展现：
这个我是配合定时器和中断按键处理的，大致思路，按下按键在按键中断函数中将相应标志位置1
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin){ // 按键//OLED_ShowString(0, "victory");STARTTEST = 1;MEMFLAG = 1;
}
主函函数识别标志位变为1则做相应ADC获取，以及OLED显示
void Function_StartAdc(){ if(STARTTEST == 1){//Function_OledInit(10);HAL_TIM_Base_Start_IT(&htim7);Function_GetAdc();Function_OledShow();HAL_GPIO_WritePin(K1_GPIO_Port, K1_Pin, GPIO_PIN_SET);}else {HAL_GPIO_WritePin(K1_GPIO_Port, K1_Pin, GPIO_PIN_RESET);OLED_Clear();//HAL_GPIO_WritePin(OLED_Power_GPIO_Port, OLED_Power_Pin, GPIO_PIN_SET);}
}检测数值是否稳定，在第一次获取ADC数值的时候备份一下，在定时器里去分析是否稳定，不稳定定时器计数值归零否者继续计数
void Function_GetAdc(){uint16_t AdcData[2];for(unsigned char i = 0; i < 2; i ++){HAL_ADC_Start(&hadc);HAL_ADC_PollForConversion(&hadc, 0xff);AdcData[i] = HAL_ADC_GetValue(&hadc);HAL_Delay(5);}HAL_ADC_Stop(&hadc);RP1Value = AdcData[1] * 3.30f / 4095;RP2Value = AdcData[0] * 3.30f / 4095;if(MEMFLAG == 1){ // 做备份MEMFLAG = 0;MEMRP1VALUE = RP1Value;MEMRP2VALUE = RP2Value;}if(RP1Value <= 3.3) WT = RP1Value * 80 / 3.3;else WT = 80;if(RP2Value <= 1) BF = 5;else if(RP2Value > 1 && RP2Value < 2) BF = RP2Value * 40 - 35;else BF = 45;
}
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim){ // 10ms//OLED_ShowString(0, "victory");if(STARTTEST == 1){ // 测量体重if(COUNTNUMBER >= 300){//HAL_TIM_Base_Stop_IT(&htim7);STARTTEST = 0;TESTVICTORY = 1;COUNTNUMBER = 0;sprintf((char* )SENDMSG, "#%.1f#%.1f", WT, BF);LORA_Tx(SENDMSG, 20);} DERTARP1 = RP1Value - MEMRP1VALUE;DERTARP2 = RP2Value - MEMRP2VALUE;if(DERTARP1 > -0.1 && DERTARP1 < 0.1 && DERTARP2 > -0.1 && DERTARP2 < 0.1) COUNTNUMBER ++;else {MEMRP1VALUE = RP1Value;MEMRP2VALUE = RP2Value;COUNTNUMBER = 0;}}if(TESTVICTORY == 1){ // LD5闪烁if(COUNTNUMBER <= 300) {COUNTNUMBER ++;if(COUNTNUMBER % 10 == 0) HAL_GPIO_TogglePin(LD5_GPIO_Port, LD5_Pin);}else{TESTVICTORY = 0;HAL_TIM_Base_Stop_IT(&htim7);HAL_GPIO_WritePin(LD5_GPIO_Port, LD5_Pin, GPIO_PIN_SET);COUNTNUMBER = 0;}}
}LD5是每0.1s反转一次，也就是整10位反转，所以直接%10即可
够3s后OLED直接清屏就行，断开电源开启还要初始化很麻烦
储存用结构体
typedef struct{unsigned char MEMWT[10];unsigned char MEMBF[10];
}MEMO;
符合要求得数据直接memcpy过来就行
对于LORA传输的数据要做一些处理，再判断
void Function_LorRxHandle(){if(RECEIVEMSG[0] == '#'){Function_ArrayClean(RXWT, sizeof(WT));Function_ArrayClean(RXBF, sizeof(BF));unsigned char i = 1;unsigned char j = 0;while(RECEIVEMSG[i] != '#') RXWT[j ++] = RECEIVEMSG[i ++];i ++;j = 0;while(RECEIVEMSG[i] != '\0') RXBF[j ++] = RECEIVEMSG[i ++];//OLED_ShowString(0, WT);//OLED_ShowString(2, BF);TPRXBF = strtof((char* )RXBF, NULL);TPMAXBF = strtof((char* )MAXBF, NULL);TPMINBF = strtof((char* )MINBF, NULL);if(!(TPRXBF >= TPMINBF && TPRXBF <= TPMAXBF)){HAL_TIM_Base_Start_IT(&htim7);}else{HAL_TIM_Base_Stop_IT(&htim7);HAL_GPIO_WritePin(LD5_GPIO_Port, LD5_Pin, GPIO_PIN_SET);Function_ArrayClean(WT, sizeof(WT));Function_ArrayClean(BF, sizeof(BF));memcpy(BF, RXBF, 10);memcpy(WT, RXWT, 10);memcpy(MEMORX[INDEX].MEMBF, BF, 10);memcpy(MEMORX[INDEX].MEMWT, WT, 10);INDEX = (INDEX + 1) % 20;}}if(RECEIVEMSG[0] != '\0') Function_ArrayClean(RECEIVEMSG, sizeof(RECEIVEMSG));
} unsigned char i = 1;unsigned char j = 0;while(RECEIVEMSG[i] != '#') RXWT[j ++] = RECEIVEMSG[i ++];i ++; // 跳过'#'j = 0;while(RECEIVEMSG[i] != '\0') RXBF[j ++] = RECEIVEMSG[i ++];
这一步部分的作用是将例如#value1#value2分别取出来，因为value1和2的位数不知道所以用memcpy是不行的，这就要用算法来操作了
操作之前记得将数组里的值清除一下，防止这次的数据被前面接收的数据污染：
void Function_ArrayClean(unsigned char* array, uint16_t len){for(unsigned char i = 0; i < len; i ++) array[i] = '\0';
}
if(RECEIVEMSG[0] != '\0') Function_ArrayClean(RECEIVEMSG, sizeof(RECEIVEMSG));
将处理函数放外面是因为，比赛可能有其他人发送的数据可能会被误收，更要清除
对串口数据的处理更是将神器strtof函数运用到极致，真是不得不佩服大佬写的函数
void Function_UartRxMsgHandle(){if(UARTRXMSG[0] != '\0'){HAL_Delay(10);//OLED_ShowString(0, UARTRXMSG);TEMP = strtof((char* )UARTRXMSG, &p);if(*p == '\0'){ // 查询指令if(TEMP >= 1 && TEMP <= 20){Function_ArrayClean(SENDMSG, sizeof(SENDMSG));sprintf((char* )SENDMSG, "WT:%sKG,BF:%s%%", MEMORX[(int)TEMP - 1].MEMWT, MEMORX[(int)TEMP - 1].MEMBF);HAL_UART_Transmit(&huart2, SENDMSG, sizeof(SENDMSG), 0xff);}else{HAL_UART_Transmit(&huart2, (unsigned char* )SDERREOR, strlen(SDERREOR), 0xff);}}else if(*p == ','){ // 改变指令Function_ArrayClean(TEMPUARTRX, sizeof(TEMPUARTRX));unsigned char i = 0;unsigned char j = 0;while(UARTRXMSG[i ++] != ',');while(UARTRXMSG[i] != '\0') TEMPUARTRX[j ++] = UARTRXMSG[i ++];TEMP1 = strtof((char* )TEMPUARTRX, &q);if(*q == '\0' && TEMP <= TEMP1 && TEMP >= 0 && TEMP <= 45 && TEMP1 >= 0 && TEMP1 <= 45){sprintf((char* )MINBF, "%d", (int)TEMP);sprintf((char* )MAXBF, "%d", (int)TEMP1);}else HAL_UART_Transmit(&huart2, (unsigned char* )SDERREOR, strlen(SDERREOR), 0xff);}else HAL_UART_Transmit(&huart2, (unsigned char* )SDERREOR, strlen(SDERREOR), 0xff);Function_ArrayClean(UARTRXMSG, sizeof(UARTRXMSG));}
}
延时10ms是因为是DMA接收，所以让CPU别急着处理让DMA将数据接受完再处理
之前讲过strtof的性质，将字符串转换成浮点型直到不能转换为止，所以利用这个性质：
将数据先全部转换一次，如果全部都能转换即指针指向空字符，那么就是查询语句，如果指针指向’,‘那就说明是设置值命令，如果指向的是其他字符，则可返还错误，如果指向‘，’此时可利用上面分割#字符的方式将’,'字符分割到另一个数组做分析，再次分析另一个设置数据合不合法
while(UARTRXMSG[i ++] != ',');while(UARTRXMSG[i] != '\0') TEMPUARTRX[j ++] = UARTRXMSG[i ++];
先跳过第一个‘，’再对后一个字符串做处理
这个处理过程让我找到了后端开发的感觉，先写主体判断框架，再实现框架内部内容
这一部分得慢慢来慢慢调试
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