Great work on the MKR Vidor 4000 support so far, I've used it to upload a working Heartbeat sketch to the board. It works!
The only thing is for larger sketches, e.g. for the Vidor Graphics library, the sketch upload stalls at around 50% when it reaches a write at 0x40000. This only happens when it's been loaded with the new loader released 5 days from the time of writing.
I have switched back and forth and it's not an issue on the sam-ba stock firmware that shipped with the board.
I had also drafted a quick minimal version of the Vidor Graphics library which fits just below 0x40000 and that uploaded but for obvious reasons didn't load the bitstream.
The new bootloader makes it 10x easier to switch between arduino and circuitplayground_express which also loads on the vidor,
but without a USB drive on that particular uf2. The USB drive shows up when it's loaded with another minimal uf2 e.g. feather_m0_adalogger and some others for ATSAMD21G18A. E18A also loads but with limited i/o pins available (missing PortB).
A basic LED test worked well with digitalio on PB08 which is an inverted Red LED on the board.
Great work on the MKR Vidor 4000 support so far, I've used it to upload a working Heartbeat sketch to the board. It works!
The only thing is for larger sketches, e.g. for the Vidor Graphics library, the sketch upload stalls at around 50% when it reaches a write at 0x40000. This only happens when it's been loaded with the new loader released 5 days from the time of writing. I have switched back and forth and it's not an issue on the sam-ba stock firmware that shipped with the board.
I had also drafted a quick minimal version of the Vidor Graphics library which fits just below 0x40000 and that uploaded but for obvious reasons didn't load the bitstream.
sketch_upload_working_stock_firmware.txt sketch_upload_interrupted_uf2_loaded.txt
The new bootloader makes it 10x easier to switch between arduino and circuitplayground_express which also loads on the vidor, but without a USB drive on that particular uf2. The USB drive shows up when it's loaded with another minimal uf2 e.g. feather_m0_adalogger and some others for ATSAMD21G18A. E18A also loads but with limited i/o pins available (missing PortB). A basic LED test worked well with digitalio on PB08 which is an inverted Red LED on the board.
This is the version I loaded, looking forward to future updates on this: https://github.com/adafruit/uf2-samdx1/releases/download/v3.15.0/bootloader-mkrvidor4000-v3.15.0.bin