LPC54113 und SWD

Hallo,
wir haben hier ein Board mit einem LPC54113 und bekommen den nicht mit 
einem segger j-link programmiert.

Wir haben schon mehrere Boards und Programmer getestet, immer mit dem 
gleichen Ergebnis.

Connect funktioniert noch, alles weitere aber nicht mehr ...

Log File :
Connecting ...
 - Connecting via USB to probe/ programmer device 0
  - Device "LPC54113J256_M4" selected.
 - Target interface speed: 100 kHz (Fixed)
 - VTarget = 3.291V
 - Found SW-DP with ID 0x2BA01477
 - DPIDR: 0x2BA01477
 - Scanning AP map to find all available APs
 - AP[1]: Stopped AP scan as end of AP map has been reached
 - AP[0]: AHB-AP (IDR: 0x24770011)
 - Iterating through AP map to find AHB-AP to use
 - AP[0]: Core found
 - AP[0]: AHB-AP ROM base: 0xE00FF000
 - CPUID register: 0x410FC241. Implementer code: 0x41 (ARM)
 - Found Cortex-M4 r0p1, Little endian.
 - FPUnit: 6 code (BP) slots and 2 literal slots
 - CoreSight components:
 - ROMTbl[0] @ E00FF000
 - ROMTbl[0][0]: E000E000, CID: B105E00D, PID: 000BB00C SCS-M7
 - ROMTbl[0][1]: E0001000, CID: B105E00D, PID: 003BB002 DWT
 - ROMTbl[0][2]: E0002000, CID: B105E00D, PID: 002BB003 FPB
 - ROMTbl[0][3]: E0000000, CID: B105E00D, PID: 003BB001 ITM
 - ROMTbl[0][4]: E0040000, CID: B105900D, PID: 000BB9A1 TPIU
 - Executing init sequence ...
  - Initialized successfully
 - Target interface speed: 100 kHz (Fixed)
 - CPU clock frequency: 5981 kHz (Auto detected)
 - Found 1 JTAG device. Core ID: 0x2BA01477 (None)
 - Connected successfully
Blank checking target ...
 - 8 of 8 sectors selected, 1 range, 0x0 - 0x3FFFF
 - Start of preparing flash programming
 - ERROR: Failed to download RAMCode.
 - ERROR: Failed to prepare for programming.
Failed to download RAMCode!
 - End of preparing flash programming
 - Start of restoring
 - End of restoring
 - ERROR: Failed to check blank target
Disconnecting ...
 - Disconnected

Hat jemand eine Ahnung was das sein kann?

Andreas