45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
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#include <windows.h>
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int main() {
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HANDLE com;
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com = CreateFile("COM1", GENERIC_READ | GENERIC_WRITE, 0, 0, OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL, 0);
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DCB dcbSerialParams = {0};
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COMMTIMEOUTS timeouts = {0};
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dcbSerialParams.DCBlength = sizeof(dcbSerialParams);
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GetCommState(com, &dcbSerialParams);
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dcbSerialParams.BaudRate = 115200;
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dcbSerialParams.ByteSize = 8;
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dcbSerialParams.StopBits = ONESTOPBIT;
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dcbSerialParams.Parity = NOPARITY;
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SetCommState(com, &dcbSerialParams);
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timeouts.ReadIntervalTimeout = 1;
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timeouts.ReadTotalTimeoutConstant = 1;
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timeouts.ReadTotalTimeoutMultiplier = 1;
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timeouts.WriteTotalTimeoutConstant = 1;
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timeouts.WriteTotalTimeoutMultiplier = 1;
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SetCommTimeouts(com, &timeouts);
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EscapeCommFunction(com, SETDTR);
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EscapeCommFunction(com, SETRTS);
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com = CreateFile("\\\\.\\COM12", GENERIC_READ | GENERIC_WRITE, 0, 0,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
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dcbSerialParams.DCBlength = sizeof(dcbSerialParams);
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GetCommState(com, &dcbSerialParams);
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dcbSerialParams.BaudRate = 38400;
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dcbSerialParams.ByteSize = 8;
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dcbSerialParams.StopBits = ONESTOPBIT;
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dcbSerialParams.Parity = NOPARITY;
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SetCommState(com, &dcbSerialParams);
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timeouts.ReadIntervalTimeout = 1;
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timeouts.ReadTotalTimeoutConstant = 1;
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timeouts.ReadTotalTimeoutMultiplier = 1;
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timeouts.WriteTotalTimeoutConstant = 1;
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timeouts.WriteTotalTimeoutMultiplier = 1;
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SetCommTimeouts(com, &timeouts);
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EscapeCommFunction(com, SETDTR);
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EscapeCommFunction(com, SETRTS);
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return 0;
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}
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