flashing TI CC2531 stick with TI Zstack ZNP firmware #19
Just wanted to say that I successfully flashed the CC2531 USB stick with the TI provided firmware that can be found here: https://github.com/mtornblad/zstack-1.2.2a.44539/tree/master/CC2531
I used Arduino MKR1000 board which is a 3.3V board so I just connected CC_DD_I and CC_DD_O together.
However I could not flash the hex file for CC2531 from here: https://github.com/zigbeer/documents/tree/master/zigbee-shepherd
I also had troubles trying to flash using an 8Mhz 3.3V Pro Micro. I traced the problem to that I could not communicate reliably with the Pro Micro serial at 115200 speed.