Hi guys! I want to Build a cheap PIC 16F84 programmer that can be connect with my LAPTOP. but LAPTOP does not have serial COM port. how can i accomplish this? guide me plz..Thankx
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I have bought a USB to DB9 adopter cable and i m going to implement the attached circuit for PIC 16F84 programmer. will it work with laptop directly? any comments please
It uses a driver (WinXP is the latest one given) which wiggles the resident COM port pins directly to make the clock/data ICSP signals to program the F84A. Adding a USB -> COM port adapter adds some layers between that and the USB driver may bypass the resident drivers completely. That could cause it not to perform the required bit timings or not work at all.Connect the PIC programmer to 1st or 2nd COM PORT of computer by using RS232 wire.
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