Support Flashrom S29GL064 (SNES Repro) [RESOLVED]

[StanMOI]

Hello,

Do you know if listed flash chip are supported for SNES Repro flashing?

• S29GL064

• MX29LV640

Nothing mentioned on this page

Thanks

[Chomemel]

29lv640 is for sure. I flash them all the time.

29gl064 is on the code, so yes. But I've never tested it.

[StanMOI]

I soldered one S29GL064 on my own PCB to test it but get error code:
ID Type 1: 9090
ID Type 2: 9090
UNKOWN FLASHROM

[Chomemel]

Did you try flashing it with the flashrom adpater too?
https://github.com/sanni/cartreader/wiki/Flash-Adapter

[StanMOI]

FLASH.ino
Code has line for S29GL064M but not for S29GL064N or "S" version.

// S29GL064M
    else if (readByte_Flash(28) == 0x10) {
      println_Msg(F("S29GL064M detected"));
      flashSize = 8388608;
      sectorSize = 65536;
      bufferSize = 32;
    }
    // Unknown S29GL type
    else {
      println_Msg(F("Unknown S29GL Type"));
      flashSize = 4194304;
      sectorSize = 65536;
      bufferSize = 32;

[StanMOI]

I got Flashrom S29GL064N90TFI04
Not sure if i'am doing right

// S29GL064
    } else if ((flashid == 0x017E) || (flashid == 0x0104)) {
    println_Msg(F("S29GL064 detected"));
    println_Msg(FS(ATTENTION_3_3V));
    flashSize = 8388608;
    flashromType = 2;
    //END S29GL064

[StanMOI]

After update to FW14
Error code:

ID Type 1: 1CFF
ID Type 2: 1CFF
UNKOWN FLASHROM

Still not working after changing code line like that:

// S29GL064
 } else if (flashid == 0x017E) {
 println_Msg(F("S29GL064 detected"));
 println_Msg(FS(ATTENTION_3_3V));
 flashSize = 8388608;
 flashromType = 2;
 //END S29GL064

[StanMOI]

I done two PCB, LoROM and HiROM PCB with S29GL064 flashrom.
Here is results of testing with original code.

// S29GL064M
    else if (readByte_Flash(28) == 0x10) {
      println_Msg(F("S29GL064M detected"));
      flashSize = 8388608;
      sectorSize = 65536;
      bufferSize = 32;
    }
    // Unknown S29GL type
    else {
      println_Msg(F("Unknown S29GL Type"));
      flashSize = 4194304;
      sectorSize = 65536;
      bufferSize = 32;

It's look's that is works for LoROM but freeze with HiROM.
Most be some similar problem which was corrected in version V13.5
"SNES: Fix flashing hirom repros with SRAM"

LoROM = S29GL064
SRAM present on board = 256kbit
Recognize flash = OK
Erase = OK
Write = OK

---

HiROM = S29GL064
SRAM present on board = 256kbit
Recognize flash = Unknown S29GL
Erase = KO
Write = KO

MX29LV640 = It's work's I added this flashrom to list of supported flash for SNES Repro flashing into:
Chinese or custom-made SNES repros

[StanMOI]

I found !
My fault...
On HiROM board I forgot to add "voltage regulator".
With regulator from 5V to 3V, all works fine !
I added Flash S29GL064 to list Chinese or custom-made SNES repros

Thank's anyway to everyone.

[sanni]

Just out of curiosity, what happens if you select the "CFI HiROM" option? Does CFI work too?

[StanMOI]

CFI writing option, HiROM, all works fine !

[StanMOI]

CFI writing option, LoROM = all works fine TOO !