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Hello i have a printer cable that i connect to it some LEDs . i want to use CreateFile and WriteFile functions but i don't know that i should use LPT1 and LPT2 or COM1 and COM2 in CreateFile function. h = CreateFile( L"LPT1", // pointer to name of the … 
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Hello when i use below program to write and read data from USB mass storage device(flash memory) i am getting following error. I've succeeded with usb_bulk_write() but can't utilize usb_bulk_read(). It returns an error. Set configuration usb_bulk_write: 12 bytes written 33 5b 2 1 0 5 1 3 7 f … |
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Hello I want to turn on a LED using C, meaning that I want to write on printer port. but the code doesn't work. I use char ledStatus instead of BYTE ledStatus. is there any difference?? what is the problem in this code? #include <windows.h> #include <conio.h> #include <staio.h> #define …
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hello can any one give me a simple examle code to read and write to serial port? i want to send data to the port and recevie the same. i use visual c++
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