Ken/Hugen -
I just installed a new ST32F303 on to my original NanoVNA and it is not recognized by USB (Yes, I installed 1.5K pull-up on pin33) so I assume I need to install the DFU bootloader.
Where do I find the bootloader binary for the F303? I've looked all over.
I can install firmware successfully using my ST-link, so that is not an issue.
Did anyone create instructions for replacing the bootloader on the 'nano? I think that would be good trouble shooting info to have.
Finally, Ken - can you send me a working binary you had developed for using the F303 with the 2.8 inch display so I can verify everything works?
I ultimately want to write up a document on how to enhance the original 2.8" Nanovna with an F303 processor and maybe add an SD slot in the process.
Thanks
Larry
