bad tsop?

Taco!Taco!
in The Brewery
Got a new batch of TSOP in the other day and tried to burn some files and kept getting the following error every single time;



Verify Failed, Address=0x000000, Device=0xFF, Buffer=0x00



I've tried erasing the chips multiple times and every single time I get that error. I can get the chips to ID, blank test, erase, and that's it. Every time I read the chips back they're always empty. I've checked pin connections multiple times, I can't find any user error.



I think the chips might of gotten fried due to static as the vendor didn't put them in any anti-static shielding. I don't know if that would explain this or what's going on.



I get the same error on two programmers that have and currently still go program tsop just fine as I had a chip left over from another shipment that is programming and verifying between both units flawlessly.



Anyone have any insight?

Comments

  • jjreprojjrepro
    Are all of them doing this? I have the occasional one that will blank, then burn and get stuck 3/4 the way through.
  • Taco!Taco!
    Every single one
  • jjreprojjrepro
    have you successfully burned chips before with your current set up?
  • Taco!Taco!

    Originally posted by: Taco!



    I get the same error on two programmers that have and currently still do program tsop just fine as I had a chip left over from another shipment that is programming and verifying between both units flawlessly.

     






  • jjreprojjrepro
    Oops, sorry for not reading!



    I would contact the seller and ask for a refund/exchange then.
  • Taco!Taco!
    Yeah, I guess that's the only option left. Unfortunately my vendor is on vacation for a week so I'm TSOL there.



    Anyone have the exact same issue and get past it? Anyone?





    EDIT : I found 1 single working chip in the entire batch. Wow.
  • FancyPantsGamerFancyPantsGamer
    I ordered from Quest before and was 0 for 15 on chips I sent some out and no one could get any of the chips to work. I ordered from buyicnow and was 5 for 5. But since you said vacation for a week I will guess buyicnow?
  • Taco!Taco!
    I've dealt with buyicnow and didn't like the way they sent the chips, the postage costs, etc. They did work but I did get one or two duds. These came from a chinese distributor I shall not name. I don't want to hurt the guy's business, he's making the order right and thats all that matters. It just sucks its going to take a week + to get them replaced.
  • PikoPiko
    buyicnow wont carry tsops 29f032B anymore :S
  • Taco!Taco!

    Originally posted by: pichichi010



    buyicnow wont carry tsops 29f032B anymore :S



    Why not?
  • PikoPiko

    Originally posted by: Taco!




    Originally posted by: pichichi010



    buyicnow wont carry tsops 29f032B anymore :S



    Why not?

    discountinued and hard to get.



    I found another memory that would be compatible  but  has a different pin out, so I need to get a adapter done.




  • jjreprojjrepro
    I have 120 left over, but since they're becoming so scare i'm not sure if I would sell these easily
  • PikoPiko

    Originally posted by: jjrepro



    I have 120 left over, but since they're becoming so scare i'm not sure if I would sell these easily





    of course you would sell them easily, but I recommend you sell them at higher price
  • FancyPantsGamerFancyPantsGamer
    Damn, I was enjoying their already constructed boards, it was worth saving time.
  • Moothead2Moothead2
    I've got 36 or so left from when I bought 50 from a guy selling about 200 chips (both 75 and 90ns). They came out at about $3.50 per chip. Glad I bulk bought now!



    Buyicnow have 4 120ns 29f032s (TSOP only)  in stock if anyone is interested.
  • busybeebusybee
    they sell on ebay for $18-20



  • dra600ndra600n

    Originally posted by: pichichi010




    Originally posted by: jjrepro



    I have 120 left over, but since they're becoming so scare i'm not sure if I would sell these easily





    of course you would sell them easily, but I recommend you sell them at higher price



    I don't think he meant that they wouldn't sell easily, but that HE won't SELL them easily, so he has some for when he needs them.
  • thepandaofnomthepandaofnom
    This may be off topic to some but I'm getting an issue where i have flashes a am29f032 on a tsop adapter III and now it wont erase. i did a blank cheek and it says not blank but the program says erased completed. most of the bits read ff but some still have data in them. i was trying to make bahamut lagoon but it didn't work so I figured I didn't prep the rom right so i went to start over and now i cant wright to it.
  • mhammham
    this is a little late in the game, but buy ic's from jameco. They are reasonable, ship well, and have great customer service if things don't work well. I have had the occasional part that doesn't work, and they send out a new one right away, and they don't even bother with the broken one.
  • billybob2236billybob2236
    I have some extra Brand New in the reel packaging AM29f032B. I would be willing to sell some of these for $12 each. Plus shipping, remember these are brand new, not used.



    -Jake
  • Taco!Taco!
    Thanks for the offer, I quit offering modifications a while ago so I'm not interested.



    Someone will be locking this thread shortly.



    The problem was a voltage discrepancy on a programmer is all, I just never got back to reply to the OP problem.
This discussion has been closed.