18F87J10 write_program_memory AND read_program_memory

[mcman]

Compiler: PCH 3.245

Developed my code on an 18F8722 development system. Everything worked great. No problems writing to or reading from program memory. Now, when I run my code on an 18F87J10, nothing is updated in program memory after doing a 'write_program_memory'.

Is anybody aware of a compiler bug associated w/ my particular version and PIC combination? I see that the forum is full of complaints and gnashing of teeth w/ regard to program flash and read/write functionality.

Any help would be greatly appreciated.

Thanks.

[Guest]

Update:

CCS Tech support acknowledged that there is a bug associated w/ my compiler version and the PIC 18F87J10 (and other J series parts as well). There is also an issue associated with #fuses setting the config words. I had noticed this as a problem as well. Was getting around that by using the MPLAB IDE dialogue to set the bits. Bits in IDE dialogue wouldn't update per #fuses on compile like they should.

The latest version 4 compiler supposedly fixes these issues.

[Jerry I]

Possibly this problem.

The 18F87J10
From Data sheet Page 3

FLASH PRGRAM MEMORY
- 1000 erase/write cycles endurance typical
- self-write capability during normal operation


Have you exceeded 1000 erase/writes


The 18F8722
FLASH PRGRAM MEMORY
- 100000 erase/write cycles endurance typical
- self-write capability during normal operation