ORDER am29f032b-TSOP -> SNES-ROM36-DIP..

Hias · Post by **Hias** » Wed Nov 09, 2011 12:35 pm

Huh? What picture, what bridge? oO

rkrenicki · Post by **rkrenicki** » Wed Nov 09, 2011 1:18 pm

the picture sometimes loads for me, sometimes not. It is on a Japan webhost, so perhaps that may have something to do with it.

You can right click on the picture, and either copy image or click "view image"

Hias · Post by **Hias** » Wed Nov 09, 2011 2:10 pm

heh, it 403d for me the whole day, worked the first try with a japanese proxy

You need this bridge to connect W_ to VCC, otherwise the chip won't "boot". I would connect _RP too.

rkrenicki · Post by **rkrenicki** » Wed Nov 09, 2011 2:22 pm

Oh right, didnt AMD/Spansion parts need that, but ST parts didnt? I seem to recall reading that somewhere.

Hias · Post by **Hias** » Wed Nov 09, 2011 2:51 pm

I dont know, but it is always a good idea to disable W_ and RP_ for a game in a cartridge which is supposed to stay there

Post by **tepples** » Wed Nov 09, 2011 5:25 pm

Hias wrote:it is always a good idea to disable W_ and RP_ for a game in a cartridge which is supposed to stay there

Unless, for example, you're designing a homebrew game to use the last 0.5 MB of a 2 MB ROM chip for saved games.

Hias · Post by **Hias** » Thu Nov 10, 2011 12:04 am

How does this work? The 29F032 needs min. 12V to enable W_ access, where does that come from?

But great idea!

slpcat · Post by **slpcat** » Thu Nov 10, 2011 6:52 am

hello guys,that TSOP adapter1 bridge #reset to VCC.
I was trying few connection.
#WE is for use burning.

Post by **tepples** » Thu Nov 10, 2011 8:09 am

Hias wrote:How does this work? The 29F032 needs min. 12V to enable W_ access, where does that come from?

In some flash IC families, it comes from a charge pump on the chip.

SkinnyV · Post by **SkinnyV** » Mon Dec 05, 2011 6:49 pm

I'm really about to quit on these things. I soldered about 5 adapters, 2 of them Type 2. I can only get 1 chip on the Type 2 board to detect and ID properly. I seem to be able to read the chip, (at least part of it as I see copyright information from a company and data here and there) but impossible to erase. Re-soldered 2 other 29f0320 tsop to be certain the chip were not bad. Still no go. I checked the tsop legs with a 30x jeweler magnifying glass and it's perfect. Tried with a brand new SNES maskrom to Willem adapter PCB generously offered by rkrenicki and still nothing. I even changed my power supply for a 12v - 2A adapter and still nothing. I'm being paranoid about my willem potentially being the problem. If it's not the willem, I really don't know what it could be. I saw a lot of people posting about similar issue erasing around the net and one of the solution was to avoid an erase timeout by clicking in the device drop down box and leaving it open for a min or so because that apparently block the time out count while continuing to erase the chip but even that didn't work. How many people have had success with a regular willem, not the QG-4X or other True usb programmer. I'm talking about a plain willem 5.0. I'm going completely nuts over that thing and really starting regretting ever trying it out.

Hias · Post by **Hias** » Tue Dec 06, 2011 3:45 am

Just let your chip supplier program the TSOPs, every supplier should be able to do that for you.

SkinnyV · Post by **SkinnyV** » Tue Dec 06, 2011 7:12 am

I gothem on ebay and in any case, it would kinda defeat the whole purpose of using them as i want to be able to re-flash them by myself...

rkrenicki · Post by **rkrenicki** » Tue Dec 06, 2011 10:45 am

If I lived closer, I would offer to swing by to try my programmer, and/or my tested TSOPs.. But alas, a 6 hour drive in each direction is a little much for that..

SkinnyV · Post by **SkinnyV** » Tue Dec 06, 2011 4:00 pm

Haha you were nice enough already to give me your adapter's pcb

I saw some people trying to program the same flash chip for a different purpose and he was saying he can program them if they are brand new but can't when he used second-hand flash chip that need to be erased so it might be a similar issue. I'm almost tempted to buy a new programmer but I can't really shell out 100$ for the USB programmer at this time of the year.

rkrenicki · Post by **rkrenicki** » Tue Dec 13, 2011 8:13 am

I just ordered another 24 chips and pcbs, I hope to have all of them assembled by the end of the week. I could test one and send it to you at my cost so you can rule out everything but your programmer?