Products > Test Equipment
Upgrading DSLogic Basic to Plus without EEPROM modification
thm_w:
--- Quote from: ceres-c on March 07, 2020, 08:34:12 pm ---I've made the same modification, but it's still not working with the latest bitstream.
Maybe it's due to the RAM I'm using, given I have soldered the -75, which is 34MHz slower than the -6A version. Which one of the two do you have?
--- End quote ---
In the photo I posted above, -6A
kivijakola:
I received also my DSLogic Basic that has 64 Mb ram installed. I did some investigations to upgrade to pro and noticed following:
64Mbit ram datasheet can be found from here:
https://www.winbond.com/resource-files/w9864g6kh_a02.pdf
And 256Mbit version here:
https://www.winbond.com/resource-files/da00-w9825g6khc1.pdf
Difference between those is that 256Mb version has extra address pin A12 mapped to pin 36. Measured that pin from PCB and seems that it is not connected to any pin of Spartan? Has anyone measured that from Pro version where that should be connected?
kivijakola:
Found one blurry image of back side of pcb from net. Seems that there is at least on trace missing from my basic version compared to that.
masterx81:
Look here for u2b;
https://www.google.com/amp/s/m.habr.com/ru/amp/post/483496/
I've used a thin enameled wire to connect the missing addressing pin. The i've done the eeprom mod and it works perfectly
eetechTom:
I have a question regarding the shielded leads w/compensation network. The only 2 suppliers that seem to show these with the DSLogic Plus are Banggood, and Dreamsource.
Thanks.
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