Unable to flash/erase TM4C129x MCUs

[kajusK]

When trying to erase the tiva MCU, the pyocd fails.

Environment: MCU: TM4C129DNCPDT Debugger: tested with J-Link and Orbtrace Pyocd version: 0.36.0 Pack: Keil.TM4C_DFP 1.1.0 OS: Windows 10 Pro Command: pyocd erase --mass -t tm4c129dncpdt -vv, most other (flash,...) commands fail in a same way

Error log

...
0017665 D Running task create_cores [sequencer]
0017665 D Creating SCS component [discovery]
0017665 D selected core #0 [soc_target]
0017686 I CPU core #0: Cortex-M4 r0p1, v7.0-M architecture [cortex_m]
0017687 I   Extensions: [DSP, FPU, FPU_V4, MPU] [cortex_m]
0017688 I   FPU present: FPv4-SP-D16-M [cortex_m]
0017698 D Creating SCS component [discovery]
0017700 D uninit session <pyocd.core.session.Session object at 0x0000018153FD3A10> [session]
0017728 C Error: <APv1Address@0x18154b57ad0 #1 dp=0> [__main__]
Traceback (most recent call last):
  File "C:\Users\JakubKaderka\AppData\Roaming\Python\Python311\site-packages\pyocd\__main__.py", line 161, in run
    status = cmd.invoke()
             ^^^^^^^^^^^^
  File "C:\Users\JakubKaderka\AppData\Roaming\Python\Python311\site-packages\pyocd\subcommands\erase_cmd.py", line 94, in invoke
    with session:
  File "C:\Users\JakubKaderka\AppData\Roaming\Python\Python311\site-packages\pyocd\core\session.py", line 415, in __enter__
    self.open()
  File "C:\Users\JakubKaderka\AppData\Roaming\Python\Python311\site-packages\pyocd\core\session.py", line 553, in open
    self._board.init()
  File "C:\Users\JakubKaderka\AppData\Roaming\Python\Python311\site-packages\pyocd\board\board.py", line 143, in init
    self.target.init()
  File "C:\Users\JakubKaderka\AppData\Roaming\Python\Python311\site-packages\pyocd\coresight\coresight_target.py", line 123, in init
    super().init()
  File "C:\Users\JakubKaderka\AppData\Roaming\Python\Python311\site-packages\pyocd\core\soc_target.py", line 174, in init
    seq.invoke()
  File "C:\Users\JakubKaderka\AppData\Roaming\Python\Python311\site-packages\pyocd\utility\sequencer.py", line 213, in invoke
    resultSequence.invoke()
  File "C:\Users\JakubKaderka\AppData\Roaming\Python\Python311\site-packages\pyocd\utility\sequencer.py", line 208, in invoke
    resultSequence = call()
                     ^^^^^^
  File "C:\Users\JakubKaderka\AppData\Roaming\Python\Python311\site-packages\pyocd\coresight\discovery.py", line 63, in _create_cores
    self._apply_to_all_components(self._create_component,
  File "C:\Users\JakubKaderka\AppData\Roaming\Python\Python311\site-packages\pyocd\coresight\discovery.py", line 74, in _apply_to_all_components
    ap.rom_table.for_each(action, filter)
  File "C:\Users\JakubKaderka\AppData\Roaming\Python\Python311\site-packages\pyocd\coresight\rom_table.py", line 338, in for_each
    action(component)
  File "C:\Users\JakubKaderka\AppData\Roaming\Python\Python311\site-packages\pyocd\coresight\discovery.py", line 56, in _create_component
    cmp = cmpid.factory(cmpid.ap, cmpid, cmpid.address)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\JakubKaderka\AppData\Roaming\Python\Python311\site-packages\pyocd\coresight\cortex_m.py", line 222, in factory
    root.add_core(core)
  File "C:\Users\JakubKaderka\AppData\Roaming\Python\Python311\site-packages\pyocd\target\pack\pack_target.py", line 513, in _pack_target_add_core
    pname = _self._pack_device.processors_ap_map[cast(CortexM, core).ap.address].name
            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
KeyError: <APv1Address@0x18154b57ad0 #1 dp=0>

I'm wondering, what is the problem, the J-Link works well with original software in this setup, the pyocd always fails.