Hi,
I just soldered and connected my J-link to my Arduino Due (Taiji-uino DUE). But he cant find the Chip

. When I use it as "Standalone" without powering the Due via USB J-Link Flash says:
Supply Voltage to low (1 Volt is required, Measured 0,0V)
Please Check target Power
Unable to Connect
So far so good. When I connect the USB Plug, it takes 2-3 sec. until this message appears
Connecting ...
- Connecting via USB to J-Link device 0
- J-Link firmware: V1.20 (J-Link ARM V8 compiled Nov 14 2012 22:34:52)
- JTAG speed: 5 kHz (Fixed)
- Initializing CPU core (Init sequence) ...
- Initialized successfully
- JTAG speed: 5 kHz (Auto)
- J-Link found 0 JTAG device. Core ID: 0x00000000 (ARM9)
- Reading CFI info ...
- Could not find CFI compliant flash device
- Detecting flash memory ...
- ERROR: Could not find any flash devices
- ERROR: Failed to connect
Now trying the Same with J-Link (without flash)
OEM: SEGGER-EDU
Feature(s): FlashBP, GDB
VTarget = 2.497V
Info: TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
Info: TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
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.
Did not find any core.
Failed to identify target. Trying again with slow (4 kHz) speed.
Info: TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
Info: TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
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.
Did not find any core.
J-Link>
But when I try the same with pressing the RESET button the 0V problem appears in the J-LINK Flash Software (as mentioned above).
Are there any basic things I have to do before I start to program?