ARM Technical Support Knowledge Articles

OLD BLINKY IRQ EXAMPLE DOES NOT WORK

Applies to: GNU C Compiler for ARM

Answer


Information in this article applies to:


QUESTION

I downloaded an older version of Blinky IRQ example. When I connect to the target I receive the error:

"JTAG NOT FOUND"

Now I cannot download any code to the MCB2100 target. I have installed all of the updates, and I have re-checked USB. Why can I not connect to the target?

ANSWER

An early release of the Blinky IRQ example that went out with beta DKARM version contained an error in the code.

In the old code the PCON SFR was set to 0x01, putting the LPC2129 into idle mode. Once in Idle, the MCB2100 would not respond to JTAG signals.

The Blinky IRQ example has been corrected and updated. Please download the corrected version.

MORE INFORMATION

SEE ALSO

Article last edited on: 2006-07-10 18:31:55

Rate this article

[Bad]
|
|
[Good]
Disagree? Move your mouse over the bar and click

Did you find this article helpful? Yes No

How can we improve this article?

Link to this article
Copyright © 2011 ARM Limited. All rights reserved. External (Open), Non-Confidential