This contains a collection of utility cores specifically targeting the lattice iCE40 FPGA family.
The cores in this repository are licensed under the "CERN Open Hardware Licence Version 2 - Permissive" license.
See LICENSE file for full text.
Misc iCE40 specific cores
License: Other
I am trying to run your ice40-playground memtest project to test Hyperram on a Blackice MX board.
I successfully ran it on an iCEBreaker board. My Pmod is the single Hyperram chip version.
I changed the pcf files, and had to change the PLL to PLL_CORE.
I then get an error in the nextpnr placement script:
RuntimeError: Unable to place SerDesBlock(0/2 OSERDES NegEdge Delay)
ERROR: Error occurred while executing Python script /home/lawrie/ice40-playground/cores/no2ice40//sw/serdes-nextpnr-place.py
Presumably that is expected and the placement script needs changing for that board and the pins that it uses.
Can you give me any hints on what changes I need to make to the script?
The creator of the Blackice Mx board, @folknology, thought that you may have a script for an hx8k, as we believe you have Hyperram running on the Glasgow board.
My issue on your dfu bootloader was so successful, that I thought I would try another one :)
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