Hello all
Got a question, regarding the ROM for Phoenix H5 (C1 for me, but valid probably for all MB revision) ...
I do have now the 1.04/2.06 chip, 27C4096 with capacity of 512KB, also some spare empty chips.
Since I do not have the decoder, obviously the upper half (2.06 ROM code) is not usable, my H5 boots into TOS 1.04.
My question is: if I program another 27C4096 chip with the two ROMs reversed, 2.06 first, would it work, the H5 booting in TOS 2.06 ?
I mean, logically the answer would be yes but because the 1.04 is 192k and the 2.06 is 256K I decided to better ask first.
Especially since 27C4096 are One-Time-Programable chips
Or maybe put it even more generic: if I program any kind of valid (compatible, bootable) 256K ROM in the first half of EPROM chip, would that work (on a H5 motherboard without decoder) ?
Thx.
Thomas
H5 ROM programming/compatibility
Re: H5 ROM programming/compatibility
Hi, short answer is no.
You need additional decoding to get the 256k ROM to work on the basic board.
There are decoders in the shop and on the ST-TF536 plus others (on TRUDIE for example).
Another option might be to run a RAM image of the OS - that avoids the decoding issue.
You need additional decoding to get the 256k ROM to work on the basic board.
There are decoders in the shop and on the ST-TF536 plus others (on TRUDIE for example).
Another option might be to run a RAM image of the OS - that avoids the decoding issue.
Re: H5 ROM programming/compatibility
Understood.
Thx. for information.
Thx. for information.