I'm interested in designing a PCB for a F28069 chip (the Launchpad is nice, but it's too large for my project). It'll include a USB port that'll be using for flashing.
Questions:
1. I'd like to directly connect the USB input port to the USB pins on the F28069 (GPIO26 and GPIO27) and use the USB bootloader included in controlSuite to flash programs to the F28069 via USB. On the launchpad, the USB input goes into an FTDI chip to translate it to UART and programs the F28069 via SCI (UART) pins -- this takes up some extra real estate, though, so I'd like to program via USB if possible. Would this work? Would this work without a huge amount of programming effort?
2. If I do use USB bootloading, which bootloader configuration pins need to be tied to power? I looked at Table 2-4 in the chip family user guide, which explained how GPIO37, GPIO34, and TRSTn should be configured for a few different bootloader options (including SCI), but it didn't include USB.
Thanks!
