Hey guys,

I'm using a BK Precision 848 device programmer to burn my chips, and I'm using ST M27C256 chips. I'm having some problems on burning these correctly. When I attempt to burn a bin to the chip I get this error:

Programming device error
ADR=8000h, DO=02h, D1=00h, ST=00h

I've got the device set like this:

device org x8, size 10k, start 8k end FFFF
Buffer org x8, size 10K, start 0000 end 7FFF
file org x8, size 8000, start 0000 end 7FFF

any help explaining what I'm doing wrong would be appreciated!! also, how do I erase these chips? I've sat them out in the sun for days, under a bright UV light, without results.

thanks

dale

 

It looks like the device org is setup incorrectly. That too should be 0 to 7FFF. A 27C256 is a 32KB device. A '730 with $88 or $8D (from the looks of your sig) will be the whole chip (32KB).

Takes about a month of time (24hrs/day) to erase an EPROM under the sun. For a UV lamp need to use a germicidal type bulb, the kind that will burn your skin & eyes if not careful with it. Then it takes about 15-20 minutes.

Can also use x-rays. . .

RBob.

 

Well, it's not a 256 chip, it's actually a 512 chip. Can you tell me what I need to change on the device settings to allow me to burn to this chip?

thanks