Cyao
Joined 1 year ago
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101
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Member since
May 28
Joined 1 year ago
This is a dev board that carries an ECP5 FPGA, and has a raspberry pi zero footprint. It also has a few improvements! Notably the 2 USB-B ports are replaced with 3 USB-C ports, and it has additional indicator LED and buttons.
This board can output HDMI, read from a uSD, use a SDRAM and much more. I'm very proud the product of multiple months of work.
It is also completely open source! Check out the source on github: https://github.com/cheyao/icepi-zero
The H3 CPU has a small bootloader inside, that enumerated the SD card and eMMC to look for a user-made bootloader. IIRC it looks for some file inside of the file system, and loads it to 0x70000. Thus you can customize it if you have enough time :)
[1] https://github.com/ssvb/lima-memtester/releases/tag/20151207...