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Old 08-07-2008, 06:41 AM
d_mc_a d_mc_a is offline
 
Join Date: Aug 2008
Location: Ireland
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help reading a 16C621A..

Hi,

I'm a bit of a amateur when it comes to PIC programmer. I'll explain my situation. I have a CCTV system at home with 2 x 4 channel Video capture cards. Its a PC based CCTV system running windows XP and a simple video server that is recording 6 camera inputs from around my house. It's a little bit dated and hardware has been swapped and upgraded many times in it. My problem is that on of the camera's was recently struck by lightning and it fried one of the video capture cards along with a few other things. I eventually managed to replace all the damaged hardware as well as the video capture card but the software I'm using doesn't allow me to use the new card. I've noticed a removable PIC ( 16C621A ) on the working card that is not present on the new card. I imagine this PIC contains some kind of Identification info for the software running on the PC so I planned on buying a PIC programmer that would allow me to read the working chip and write it to a blank chip of the same type. I tried swapping in the old, damaged cards PIC but is clearly not working. I bought a couple of blank 16C621A's and also a K150 USB PIC Programmer.

I have managed to install the programmer on a PC here and it is detected perfectly by the MicroPro programming software when I try to read from the original chip, it returns all zero's and the read data. All I am doing is plugging the PIC into the 40 pin interface on the programmer in the correct location and orientation.

Is there any PIC guru here that would be nice enough to help?


Thanks,
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