So I’ve managed to solder together my very own B2 board. It’s been quite the challenge but I think I’ve got it right.
Now I suspect I need to flash the board with the bootloader. I have an arduino mega wired in with the programmer sketch loaded, all setup according to this: https://github.com/tinyfpga/TinyFPGA-B-Series/tree/master/programmer_arduino
I have installed the python program and have tried this:
tinyfpgab -d 2341:0042 -a 0 -p ~/Downloads/fw.mcs
mcs is probably an Intel HEX file right? I suspect I need a bin file to see if this board is working. Can I grab the binary from somewhere please?
I just hope everything has soldered in correctly! Trying to do BGA in a frying pan is a little tricky!