Compatible chips for Atari flash-software and Flashable TOS4x

[Arthur]

Hallo Peter,

can we use this chips from ST with your flash-programmer software?
The chips are not from ATMEL or AMD. Thx.

Edit: are they fast enough?

[Petari]

can we use this chips from ST with your flash-programmer software?
The chips are not from ATMEL or AMD. Thx.

That chips should work well as ROMs, because reading is usually standard. But for programming need to write proper code for those chips/brand. There are some differences in writing protocol among manufacturers, so must having code for each. How urgent is this ?

[Arthur]

We would make a small batch on forum.atari-home.de in the next one or two month. We will maby build a modified (smaller) layout so we can use the flashtos4x circuit under adverse conditions for the most Atari ST. Lynxman said he has some chips in his portfolio. I hope he has enough. 

[Petari]

Well, as I see here , AMD Flash chips are cheapest . 4Mbit ones cost under 2 Euros/piece .
It would help me if you could send me 2 pieces of ST Flash EPROM chips - if postage is not more than price of chips self. Then I can make SW for on circuit programming.