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我正試圖在PC和PC MCU PIC之間進行RS-232通信。所以我開始用C++編寫PC程序,但它沒有錯誤,根據我輸出的狀態cout
它應該工作,但我想確定。所以我下載了超級終端,並通過串口將Tx連接到了Rx引腳,但每當我嘗試連接超級終端時都會出現錯誤,並說我試圖運行我的C++程序時會出現這種錯誤。我不明白這個問題究竟在哪裏。下面是完整的代碼,如果該問題是代碼的,只是爲了確保:當超級終端連接時,C++無法通過COM端口傳輸數據
的main.c:
#include <windows.h>
#include <winbase.h>
#include <iostream>
PDWORD sent;
char buf;
int main(){
DCB serial;
HANDLE hserial = CreateFile("\\\\.\\COM1", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
serial.DCBlength = sizeof(DCB);
serial.BaudRate = CBR_9600;
serial.fBinary = true;
serial.fParity = false;
serial.ByteSize = 8;
serial.Parity = NOPARITY;
serial.StopBits = ONESTOPBIT;
char result = BuildCommDCB("baud=9600 parity=N data=8 stop=1", &serial);
if(result != 0){
std::cout << "DCB Structure Successfully Created!" << std::endl;
}else{
std::cout << "DCB Structure Creation Failed!" << std::endl;
}
if(hserial != INVALID_HANDLE_VALUE){
std::cout << "COM Port Handle Successfully Created!" << std::endl;
}else{
std::cout << "COM Port Handle Creation Failed!" << std::endl;
std::cout << GetLastError() << std::endl;
}
char res = WriteFile(hserial, "0xFF", 1, sent, NULL);
if(res != 0){
std::cout << "Writing to COM Port Successfull!" << std::endl;
}else{
std::cout << "Writing to COM Port Failed!" << std::endl;
std::cout << GetLastError() << std::endl;
}
CloseHandle(&hserial);
return 0;
}