CCSLOAD / MACH X erasing problem

EmmKay · Joined: 23 Dec 2009 Posts: 3

Hi All,

It might be a simple question to answer but none the less it has got me confused. I am working pic 16f822. When I erase the chip, ccsload displays that the erasing has been successful. So when I go into verify chip is blank it comes up with the message 'chip not erased'. Because of this the writing to the chip is not working.

Also the file info shows the target chip field to be blank, while all other options in CCSload recognise the chip as being the correct one.

Any help / insight is much appreciated.

Cheers

CORRECTION it should say 16f882 and not 16f822... My typeo..!!!!!

EmmKay

wwinch · Joined: 29 Dec 2009 Posts: 1

If you figure it out, please update. I have the same problem.

I haven't used the Mach X in a year or more, so went thru the whole update to CCSLOAD/firmware business. Now I can't erase a 18LF2680 in the ZIF socket. Have not yet tried a different chip or programmer.

EmmKay · Joined: 23 Dec 2009 Posts: 3

I have had no luck with my issue!.. does any one have any insight that they can offer!!!!! any hint to look into a particular direction..?????

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

EmmKay · Joined: 23 Dec 2009 Posts: 3

MY BAD.. it should be 16F882.. I made a typo and and being brainwashed in trying to figure out the problem kept reading the 16f822 as 16f882...

cheers all..

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

What is the Vdd voltage of the PIC ? Is it 3.3v ? The CCS programmer
may be doing a bulk-erase operation, and that won't work if the Vdd
on the 16F882 is less than 4.5 volts.

Also, to find out what sections are not being erased, use the CCS
programmer to read the PIC. Then look at the program memory and
the Config bits that have been read.