[Techtoolslist] Bytek Fireman 8x

[John Robertson]

Yes, Cameron, the 2532 does go to FFFh, a 2716 fills to 7FFh.

If you have a logic probe with a 'memory' you can use that on a read 
to see if the A11 toggles. You can use a voltmeter as well...Pin 12 
is Gnd, I would stuff thin wires into the two socket opening and clip 
the voltmeter to them.

If it toggles on a read (it will start Low, then go High at 800h) but 
not on write (write FFs that you just 'read') then you have more 
information.


John :-#)#

At 6:02 PM -0700 10/1/06, Cameron Rector wrote:

>Rodger,

>Thanks for the input however, I believe the last address for the 

>2532 is FFFh. The 2532 is a 32k device arranged as 12bit address 

>8bit data or 4096x8=32k.

>I'm a little rusty at this but I also think that 7FFh = 2048 and 4096 = FFFh.

>

>With this said; I still think I have something wrong with my 

>A11 signal or signal path.

>

>If you can think of something else, please let me know.

>

>Cameron 

>

>Rodger Boots <rlboots at cedar-rapids.net> wrote:

>

>Cameron Rector wrote:

>>  Hello all,

>>  I am new to this site, so I will applogize for dumb questions up front.

>>

>>  I have a Bytek fireman 8x and I am having trouble programming

>>  TMS2532A's. The programming part goes well until verify. It seams that

>>  at address 0800h it fails. It does this on every chip I try. I don't

>>  know if this could be a configuration setting or it the unit has a bad

>>  solder joint or IC. I did a visual inspection from A11 pin 18 back

>>  through the circuit traces and joints, however I didn't find anything

>>  wrong. I tried to call Bytek and their phone is disconnected and my

>>  email bounced back.

>>

>>  So, does anyone here know anything about this machine? Does anyone know

>>  where I can get the schmatic's for this programmer?

>>

>>  I am a newbe at programming eproms, so don't overlook the fact I could

>>  have a software setting wacked out.

>>

>>  The first verify error says "ADDS 0800h Ram 01 Device 00"

>

>

>That's OK, the last address in a 2532 would be 07FF, so at 0800 you're

>no longer inside the 2532.

>

>You have the end of buffer set too high, otherwise it would have stopped

>at 07FF.

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