Hello, I am using a a modified version of the TM4C129xl boot_serial example in order to utilize USB DFU functionality. I am able to flash the device with a modified blinky example starting at address 0x4000 using dfuprog and all works well. The problem I am having is as follows when trying to invoke DFU using GPIO.
1. ENABLE_UPDATE_CHECK and associated #defines are set so that DFU using GPIO can be utilized.
2. Program new boot_serial.bin to the device (I see "Stellaris Device Firmware Upgrade" in the device manager as expected).
3. Program previously programed blinky to device using dfuprog.
4. Blinky fails to execute?
I have attached my project files if needed.
