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Upgrading DSLogic Basic to Plus without EEPROM modification

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thm_w:

--- Quote from: hhyytt on November 30, 2019, 04:08:30 am ---Yes, 64Mb -> 256Mb
Using U2B origin eeprom firmware, use buffer mode, test new SDRAM(256Mb) is ok.
Modify pid/vid, DSView shows Plus, but push start, only wait, not work.
I use other plus firmware from this post, DSView shows Plus, also not work.

Change DSView from latest 1.0.1 to 0.9.9, work ok. Because DSLogicPlus.bin changed, not work good with U2B version, you can copy older to latest 'res' folder.

--- End quote ---

That works with DSView, thanks. I used the eeprom from fx2lafw_eeprom_loader linked above and its working with pulseview as well.
From what I can see the only difference between U2B and Pro is the memory chip. The board looks the same. But then why would they behave differently and have a quite different EEPROM loaded (see attached)?

Also of note, the cables may be improved over before but the Basic and Pro cables are still very different. You can see here the Plus cables have a heatshrink section, presumably for the shield of the coax:
https://www.aliexpress.com/i/32905798335.html

The Basic and U2B are just plain wires.
From the specs the adapter board and component values appear to be the same. So I may try in the future replicating their design with some RG178.

BH3XON:

--- Quote from: hhyytt on November 29, 2019, 10:38:55 am ---I got a new DS Logic U2B, update sdram to 256Mbit, but modify the usb vid & pid to plus(u2b is 29, change to 20) in eeprom, but it can not work.
The PCB look like this.

--- End quote ---

Me too. Like the attachment, the PID becomes different. What can I do?

thm_w:

--- Quote from: BH3XON on December 19, 2019, 02:58:33 pm ---Me too. Like the attachment, the PID becomes different. What can I do?

--- End quote ---

Did you try 0.9.9 dsview as recommended?

You can either modify the eeprom to change the PID to pro. Or you can simply re-flash with the Pro eeprom file that has been uploaded by pgo.

BH3XON:
so,you mean using the old version of dsview, I try, thanks!

btw, new version has two UIs,i like this

thm_w:

--- Quote from: BH3XON on December 20, 2019, 12:40:55 am ---so,you mean using the old version of dsview, I try, thanks!

btw, new version has two UIs,i like this

--- End quote ---

You can either use the old version, or copy the 'res' folder from 0.9.9 to the new version, as hhyytt has discovered above.

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