In addition to RTS/CTS flow control, what other hardware handshake lines do I need to support for WMP100?
RTS/CTS is all you need signal-wise on host UART interface.
Downloading OpenAT the first time with DWLWIN is fun.
And don’t forget to use the dongle.
I didn’t even know there was a dongle requirement.
And, leave the Erase Customization Files UNchecked.
You only need the dongle for the very first download ever to a “virgin” memory.