Trying to read a PIC16F57 with ICD2...

[zanor]

...but all I get is 0xFF all over the memory. Could that be because it is protected in some way?

 

[menz]

check the configgurations bits.

 

[jankop]

No, protected program and data memory is all read as 0x00, not as 0xFF.

 

[zanor]

Thanks for helping!

I rewired my ICSP connection on tried again. Now I get the first 64 lines of code and the configuration bits reads as 0FF5 (Code protected).
Is there no way around this? Why do I get the first 64 lines if it is protected?

 

[jankop]

From datasheet 16F57:
Once code protection is enabled, all program memory
locations above 0x3F read all ‘0’s. Program memory
locations 0x00-0x3F are always unprotected.

 

[zanor]

damn... Is there no way around this?

 

[blueroomelectronics]

Sure just erase the PIC and you can reprogram it.

 

[koky]

have you put a 10k resistor from pin 2 to pin 28 ?

 

[zanor]

have you put a 10k resistor from pin 2 to pin 28 ?

No, but why?