Scucci
Well-known member
The honeymoon's over...
I've been having some problems with my EMP20 and Fairchild NMC27C32Q eproms... it just won't program them.
It will blank check them, verify they're blank... but when I go to program them it shows the programming window for about a second, then comes back with an error that the buffer is showing (for example) 03 and the chip has FF... ... um, it's a blank chip. It's SUPPOSED to have FF!
Why it is verifying the code before it's done burning and why isn't it burning correctly?
I put in an Hitachi 2732, changed the device type, and it programs perfectly. But it just doesn't like those Fairchild NMC27C32Qs... I tried about 20 of them, same results for every one of them.
Has anyone else had this problem?
I've been having some problems with my EMP20 and Fairchild NMC27C32Q eproms... it just won't program them.
It will blank check them, verify they're blank... but when I go to program them it shows the programming window for about a second, then comes back with an error that the buffer is showing (for example) 03 and the chip has FF... ... um, it's a blank chip. It's SUPPOSED to have FF!
Why it is verifying the code before it's done burning and why isn't it burning correctly?
I put in an Hitachi 2732, changed the device type, and it programs perfectly. But it just doesn't like those Fairchild NMC27C32Qs... I tried about 20 of them, same results for every one of them.
Has anyone else had this problem?