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harbaum / NanoMig

Amiga Minimig ported to the Tang Nano 20k FPGA
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Latest nanomig core doesn't boot floppy images reliably anymore #22

Open fvillanustre opened 1 week ago

fvillanustre commented 1 week ago

There has been a regression on the reliability of the floppy image boot process with the latest 0.4 release. While I managed somehow to boot a few floppy images, there seems to need some timing sorcery to boot them. This is with the latest MOS unified firmware. After rolling back the nanomig core to the previous version, every floppy image boots reliably again. This is while using HDMI.

harbaum commented 1 week ago

May be a build-to-build instability. Did you try building the core from scratch, again?

fvillanustre commented 1 week ago

Good question! No, I did not. I used the build that you provided for version 0.4. I don't have the environment to build it installed (but I could certainly install it and try). If I reset it a few times, sometimes it will boot the floppy. Otherwise, the screen would stay on the standard KS 1.3 waiting for a floppy screen. But if I roll back to 0.3, every floppy image works flawlessly every time.