@arthurlutzim this one doesn't print any sort of useful messages on the debug uart, so I'm going to try reading/writing the TSOP48 NAND flash directly with an in-system programming clip.
@phooky long shot, but is there a hub involved? When I was building a verilog CDC interface, /dev/ttyACM0 bandwidth through the hub was around 400 KiB/s, while plugged directly into the laptop the FPGA's USB serial port received at nearly 1 MiB/s.
@phooky for the ASR33 I had to build my own USB to (current loop) adapter since none of commercial ones supported 110 baud!
Most of the guides I've found (for GoPro models) say that the bootloader prompt can be interrupted, although this one just immediately prints "`booting from primary partition`" and after around 30 seconds something like a MAC address.
@SuricrasiaOnline only one on the HDMI LVDS pins, although there are also Ethernet pins that could carry an arbitrary number.
@phooky the time honored way to find out what the actual specification is, regardless of the datasheet says the maximum clock is.
@artelse that's the plan! The Hershey and Asteroids fonts are too straight line, so I'm hoping an FFT with oscillators will loop it up a bit.
@kingannoy parts of Hong Kong still had a very claustrophobic feel, although most of the city seemed very polished.