H2500 SN Bios Flash

[Jackhead]

With the great Pikuma tutorial for PS dev i setup my PS Dev PC new.
Im looking to use the h2500 with the best option for IDE and debugger.
ATM i using the Code Warrior release 5 with update DECI and it working fine with win98se.

Whats new for me that its possible to flash a SN bios to the h2500 to use it with the SN Win Debugger like the PSY-Q Kit.
I had a SN Flash but when i try to flash it just freeze the h2500.
Reflash the DECI or H25bios anything working fine again.
But i have no idea why the SN bios dont work at all?? Anyone tryed this here before?
From what i read the SN Windebugger even work on WindowsXP with the h2500, what im want to try..

[nocash]

Can't help there. But I am curious: What is in those memory chips? As far as known, the DTL-H2500 has two memory chips,

Code: Select all

  IC807-2 32pin MX 27C1000MC-90 (PROM)
  IC808   32pin F 29F040A-90    (FLASH)

I assume the 512Kbyte FLASH is equivalent to the BIOS/Kernel in retail consoles, perhaps with some modifications and different CRC32?
And the 128Kbyte PROM, I've no idea what it's good for... does it contain additional MIPS code, or other code or data?

[Jackhead]

i have no idea.

the flashing working now. system was needed a reboot.
But the sn windebugger dont see the h2500. Flashed with h2500.img(SN) V1.3
Maybe i need another version or its windows nt only.. Very confusing and no docs.

[nocash]

Going by the viewtopic.php?f=69&t=56 BIOS Collection thread there aren't any known DTL-H2500 bioses, but ...

Going by the above posts there are at least three DTL-H2500 bioses...
- a SN bios
- the DECI
- H25bios
Does somebody know where those BIOSes come from, are they included in a SDK package?

[Jackhead]

The DECI and h25bios are include the Programmer Tools under PSSN. The PSY-Q SN bios for SN Software comes from SN. I think its also include in some Lib update discs.