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[Moved] Failed to get CPU status after 4 retries

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nahidalam

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I have a Toshiba TC35667 evaluation board (ARM cortex) with BLE module. I have done proper jumper settings according to their starter guide. But I can't download the code. Getting error "Failed to get CPU status after 4 retries".

I am using the latest J-Link debugger from SEGGER, the latest J-Link software, and IAR. Below is the output of J-Link Commander. Looks like the debugger is not finding the CPU. Can anyone please suggest?


*************************************************


DLL version V4.94g, compiled Nov 21 2014 10:19:50
Firmware: J-Link ARM V8 compiled Sep 22 2014 23:26:43
Hardware: V8.00
S/N: 99991999
Feature(s): RDI,FlashDL,FlashBP,JFlash,GDBFULL
VTarget = 2.957V
Info: TotalIRLen = ?, IRPrint = 0x..FFFFFFFFFFFFFFF300000001
Info: TotalIRLen = ?, IRPrint = 0x..FE0A4A0000003278F8787800
No devices found on JTAG chain. Trying to find device on SWD.


WARNING: RESET (pin 15) high, but should be low. Please check target hardware.


WARNING: RESET (pin 15) high, but should be low. Please check target hardware.
No device found on SWD.
Failed to identify target. Trying again with slow (4 kHz) speed.
Info: TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
Info: TotalIRLen = ?, IRPrint = 0x..FFFFFC2525C0031F07F0783F
No devices found on JTAG chain. Trying to find device on SWD.


WARNING: RESET (pin 15) high, but should be low. Please check target hardware.


WARNING: RESET (pin 15) high, but should be low. Please check target hardware.
No device found on SWD.
No device found at all. Selecting JTAG as default target interface.
 

Does the board powerup with a factory default demo app?

Can you either upload or post a link to the board's user manual?

According to the posted J-Link output the J-Link is unable to pull the RESET line low to initiate JTAG or SWD communications.


BigDog
 

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