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CC2340R5: Problem flashing a blank device with Segger J-Link

Hristo Ivanov
Prodigy 10 points

Part Number: CC2340R5
Other Parts Discussed in Thread: UNIFLASH

Tool/software:

Dear TI team,

We are having devices with the CC2340R5 MCU for Bluetooth functionality and they should be coming blank from the factory. Yesterday I tried to flash a blank CC2340R5 through Segger J-Link, but it failed as it failed to erase the memory. Then I flashed the device by using Uniflash and a XDS110 debugger and after that I had no problems doing the flashing with the J-Link. My questions are - could you give me any idea why the initial flash through J-Link? Why did it fail to erase the memory? Can I fix this and how? I'm attaching a log from J-Link and the CCFG (in Intel HEX format) of the blank device.

Fullscreen jlink_erase_failure.txt Download 
Connecting to target via SWD
ConfigTargetSettings() start
Flash breakpoints are disabled.
ConfigTargetSettings() end - Took 362us
InitTarget() start
  CFG-AP DEVICEID: 0x1BB8402F
    PG2.0 device detected
  CFG-AP DEVICESTATUS: 0x034D8105
  Checking if AHB-AP is enabled...
    AHB-AP enabled --> Attaching to the target...
InitTarget() end - Took 8.05ms
Found SW-DP with ID 0x6BA02477
DPIDR: 0x6BA02477
CoreSight SoC-400 or earlier
AP map detection skipped. Manually configured AP map found.
AP[0]: AHB-AP (IDR: Not set, ADDR: 0x00000000)
AP[0]: Core found
AP[0]: AHB-AP ROM base: 0xE00FF000
CPUID register: 0x410CC601. Implementer code: 0x41 (ARM)
Found Cortex-M0 r0p1, Little endian.
FPUnit: 4 code (BP) slots and 0 literal slots
CoreSight components:
ROMTbl[0] @ E00FF000
[0][0]: E000E000 CID B105E00D PID 000BB008 SCS
[0][2]: E0002000 CID B105E00D PID 000BB00B FPB
Memory zones:
  Zone: "Default" Description: Default access mode
Cortex-M0 identified.
J-Link>erase
No address range specified, 'Erase Chip' will be executed
'erase': Performing implicit reset & halt of MCU.
ResetTarget() start
  Executing reset via SEC-AP in order to enter SACI mode...
    O.K.
  Executing exit SACI mode sequence...
    O.K.
  Checking if AHB-AP is enabled...
    O.K.
  Checking if debug probe loop entered...
    O.K.
  Invalid application entry addr detected: 0xFFFFFFFF
ResetTarget() end - Took 118ms
Device specific reset executed.
Erasing device...

****** Error: Failed to erase sectors 0 @ address 0x00000000 (Unspecified error #1)
FLASH_RAMLESS: Failed to erase target via J-Link
J-Link: Flash download: Total time needed: 0.361s (Prepare: 0.007s, Compare: 0.000s, Erase: 0.352s, Program: 0.000s, Verify: 0.000s, Restore: 0.001s)
ERROR: Erase returned with error code -5.
J-Link>exit
OnDisconnectTarget() start
  Executing SWD => dormant switching sequence...
OnDisconnectTarget() end - Took 208ms

Fullscreen blank_device_ccfg.txt Download 
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