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CC2640: Flash Programmer 2 crashes on "Connect"

Dennis Page
Intellectual 635 points

Part Number: CC2640
Other Parts Discussed in Thread: LAUNCHXL-CC2650

I have a CC2640 on a custom board. I used my own bootloader to flash the CC2640. I am trying to use Flash Programmer 2 to read memory using the UART pins. The CC2640 is definitely in bootloader mode. My PC connects to the CC2640 Bootloader UART pins via a FTDI232R USB-to-serial port connection. Flash Programmer 2 runs on Windows 10.

When I click "Connect" on the Flash Programmer 2 user interface, Flash Programmer 2 crashes. There are no messages. The application simply shuts down.

I can connect the Flash Programmer 2 to a TI BOOSTXL-CC2650 board using JTAG to do the same thing and there are no issues.

Is the Flash Programmer 2 really capable of connecting to the bootloader pins on a CC2640 while the bootloader is active? I can't find anything else I need to do to make it work.