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![18f252 tait programmer 18f252 tait programmer](http://openprog.altervista.org/OProgMain.png)
I have performed continiuity checks between the ICSP header on the programmerĪnd the pins on the PIC as well as cross-continuity checks with no errors discovered. The values that they change to seem to be random.Īfter further investigation, I have found that it programs "0"'s fine but as soon as a non-zero value appears in the program memory all subsuquent data is corrupted. When I read out the program and data memory, only the first few
![18f252 tait programmer 18f252 tait programmer](http://idata.over-blog.com/3/80/04/92/picprog1.gif)
I am continually getting verify errors (at address 0 or 1) when attempting There are no parts populated on the board other than the PIC, ICSP header,Īnd a 0.1 uF decoupling cap between VSS and VDD. I have an old ITU Technologies programmer model PIC-1a (TAIT compatible). I have a recently constructed a prototype PCB for a 18F452 in the TQFP