Part Number: TM4C123BH6ZRB
Hi,
I recovered a locked TIVA microcontroller via debug port unlock sequence (by I-Jet Trace in IAR Workbench for ARM)
(s. Manual p. 199: Performing a total of ten JTAG-to_SWD and SWD-to-JTAG swith sequences while holding the microcontroller in reset to restore BOOTCFG-Register).
After PowerON-Reset flashing via JTAG or SWD is no longer possible!!!
So could you please tell me if JTAG / SWD communication must be possible after unlocking sequence?
Or is ROM-bootloader the only way for flashing?
Thanks in advance,
Tobi