-
Notifications
You must be signed in to change notification settings - Fork 104
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
5A-75E V6.0 #65
Comments
Apparently, now we have two completely different 5A-75E V6.0 in the wild. Another one was documented recently by @adamgreig: #67 |
Huh, that's super weird. It actually looks a lot closer to the V7.1 hardware than my V6.0; notably it also has two 16-bit RAM chips and uses the same Broadcom PHYs as V7.1. However it has the 381-ball package for the ECP5 instead of the 256-ball that's on my 6.0 and the other 7.1 hardware. I wonder if it's mean to be a sort of "7.0". Could you say when you purchased this, @lichtfeind ? It would also be interesting to know if the bitstream has any comments at the start. |
I ordered two 5A-75E on 2020-07-18 an got one V7.1 and one V6.0 in the same package. i don't have a Flash dump of the V6.0 atm. You will have to wait until the weekend. |
Thanks for the details and no rush on the bitstream, I'm just curious! |
Look, someone is collecting flash images for science! :D https://github.com/suglover/5a-75x-images |
This board uses a LFE5U-25F-6BG256C chip. Note, however, that there is also a different "V6.0" board with an FPGA chip in a 381-ball package, different RAM chip and magnetics. See q3k/chubby75#65 for relevant discussion. Board pinout: https://github.com/q3k/chubby75/blob/master/5a-75e/hardware_V6.0.md
@adamgreig yes it looks like there are some infos. V6.0 6BG381C:
And that makes the bitstream two month older then the V7.1: |
@lichtfeind 2018 :) |
Yes the image at https://github.com/suglover/5a-75x-images would support that. I don't know how licensing for diamond works but 3.8 looks quit old. So maybe they changed the clock. I also got a V7.1 board with 2MB Flash and that has comments: (The 4MB Board does not)
So i am not sure if the comments are even related to the bitstream as that is not an 381-ball part but a 256. |
Huh. I think it's possible to build a bitstream for 381-pin package that will work for 256-bin package, but this case is strange anyway. |
I built the pin_scan bitstream and the 381-pin bitstream worked when |
I ordered some colorlight 5A-75E and got one with V6.0.
The Chips used:
LFE5U-25F 6BG381C
25Q16CSIG
FlashEM636165TS-6G
RAM850612D
EthernetVHC245 3600097
I have not used it so far, so no pinout. And they might no longer be made so not sure how imported this is.
The text was updated successfully, but these errors were encountered: