This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

What does total IR len. and TDO is constant mean?

Trying to get Blinky project to upload to LPC4330 board for the 2015 contest.
Hardware is LPC4330-Xplorer and LPC-Link2 debugger/JTag board.
Using uVision MDK-Lite Version 5.14.0.0. 
Source compiles okay.
After compile I get these messages:
* JLink Info: Device "UNSPECIFIED" selected.
Set JLink Project File to "C:\ARM Contest\Boards\NGX\LPC4330-Xplorer\Blinky\JLinkSettings.ini"
* JLink Info: Device "UNSPECIFIED" selected.
JLink info:
------------
DLL: V4.98a, compiled Mar 26 2015 18:40:07
Firmware: J-Link LPCXpresso V2 compiled Jan 28 2015 16:43:37
Hardware: V1.00
S/N : 720000000
* JLink Info: Could not measure total IR len. TDO is constant high.
Error: Flash Download failed  -  Target DLL has been cancelled
Flash Load finished at 04:19:59

I had numerous problems getting to this point. So I've probably done something wrong
with the configuration or board connections, but none of the documentation covers my
exact hardware configuration, so it was hard to figure out. 
What does total IR len. and TDO is constant mean?
When uploading the code, Should J1 be connected on the Link2 board?
Should USB0 be connected to the computer?  (I'm using USB1 and it seems to work)
Is there an exact description of uVision parameters for this exact hardware
configuration? 
Thanks.