| | |
|---|
| | | } |
|---|
| | | checksum = Checksum_u16(&send_frame[2],5+data_length); |
|---|
| | | memcpy(&send_frame[7+data_length],&checksum,2); |
|---|
| | | |
|---|
| | | gpio_pin_set(CHANGE_UART_PIN);//；拉高变发送 |
|---|
| | | uart_send(UART_ID0, send_frame,data_length+9, NULL); |
|---|
| | | while(uart_tx_in_progress(UART_ID0)); |
|---|
| | | gpio_pin_clr(CHANGE_UART_PIN);//；拉低变接收 |
|---|
| | | } |
|---|
| | | void SendComMap(uint8_t data_length, uint8_t index)//表示成功读取的回应包 |
|---|
| | | { |
|---|
| | |
|---|
| | | } |
|---|
| | | } |
|---|
| | | extern uint8_t bind_flag; |
|---|
| | | extern uint32_t dev_id; |
|---|
| | | uint16_t temp_id; |
|---|
| | | |
|---|
| | | |
|---|
| | | |
|---|
| | | void Usart0ParseDataHandler(uint8_t data) |
|---|
| | | { |
|---|
| | | if(state5V_prase_flag&&!g_com_map[MODBUS_MODE]) |
|---|
| | |
|---|
| | | uint16_t checksum = 0; |
|---|
| | | static uint8_t pack_datalen = 0,pack_length = 0,pack_index = 0,pack_msgtype = 0,pack_cmd = CMD_READ; |
|---|
| | | static uint8_t index = 0; |
|---|
| | | |
|---|
| | | if(usart_receive_state == UsartReceiveWaitChecksum) |
|---|
| | | { //若收到校验和包 |
|---|
| | | checksum = 0; |
|---|
| | |
|---|
| | | case CMD_READ: |
|---|
| | | //read包中data字节，即mUsart2ReceivePack[0]表示数据长度； |
|---|
| | | //从g_com_data结构体中的第index位置读取长度为mUsart2ReceivePack[0]的字节，发送出来 |
|---|
| | | SendComMap0(pack_datalen,pack_index>>1); |
|---|
| | | memcpy(&temp_id,&mUsart2ReceivePack[0],2); |
|---|
| | | if(memcmp(&temp_id,&dev_id,2)==0) |
|---|
| | | buffer_message_send(); |
|---|
| | | //SendComMap0(pack_datalen,pack_index>>1); |
|---|
| | | break; |
|---|
| | | default: |
|---|
| | | break; |
|---|
