WIP: ULX3S support #54
Open
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
icecube doesn't care about init values, but yosys does and you can't satisfy them with HW RAM module. So here we remove all the init values and we make sure the reads are not dependent on the reset line Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
…atches If you don't assign all 'reg's in a process, this effectively describes a latch, and the HW doesn't have any HW latches which leads yosys to create a logic loop, which is definitely not good in FPGA ! Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
|
@osresearch - FYI There isn't much work going into this bootloader at the moment. Most people have moved over to the ValentyUSB / Foboot stuff that @xobs is working on. |
|
Just flashed a brand new board and found a few issues in the documentation. Updated it as well as fixed the return code from security page write. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Preliminary support for the ULX3S ECP5 fpga dev board. I wasn't able to make it work with the USB serial device in master, but it works fine with the split clock one in #40
The bootstrap procedure to install the firmware and configure it needs more documentation. Sample JSON files are included.