Can somebody give me resources on how to develop a serial to usb device? I'm not allowed to use rs232 to usb ICs so I have to develop my own!
Already have the USB specification.
Thanks
- posted
17 years ago
usb
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- posted
17 years ago
Get Jan Axelson's book, "USB Complete" and check out the resources on her website,
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Robert Scott Ypsilanti, Michigan
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- posted
17 years ago
Use a PIC18F2450
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which has USB and a hardware UART, and get Microchip Application Note AN956
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and the software for this AN
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This gives you a working USB CDC communication layer, so most of the work is already done. PC drivers for CDC standard devices are already included in W2k/XP, so you won't have to worry about Windows kernel mode programming either.
You will need MPLAB (free,
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the ICD2 ISP programming/debugging interface (about 150$,
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, and the Microchip C18 C compiler (about 300$, maybe the Student Edition is enough:
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for this task. Maybe the PCDEM USB starter board
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is helpful for the first steps.
Mit freundlichen Grüßen
Frank-Christian Krügel