Posted on March 03, 2008 at 12:49Hi all,
I have programmed an IAP application in order to load other programs remotely. I am using ARM7 STR7.
Now I got two microcontrollers ''blocked'', when I try to reprogram these I always get the following message: ''cannot halt target after reset'' the explanation I found is the following:
This error message is displayed when the debugger is unable to make the ARM stop running and enter debug mode typically after carrying out a reset. This error message could be caused by the following:
* Unreliable JTAG Connection �? Try reducing the JTAG clock frequency or reducing the target interface's cable lengths as much as possible.
* Incorrect support package �? Make sure you are using a CPU/board support package intended for your part.
* Incorrectly connected reset signals �? Typically the nSRST signal should be connected to the target's core reset signal, it should not be connected to the JTAG TAP reset (TRST) signal.
* Invalid code has been executed �? This may be caused by your program not being loaded correctly, a problem with the target's memory or a bug in your program. You can check the download and memory by verifying the download.
The point is that I've checked the first three possibilities and I think there's no problem. And I'm not getting access to the uController so I can't try the forth.
Is there any possibility that I've set some register or internal variable unintendedly that blocks the uController? In that case, is there a possibility to set it to the default paramaters?
I hope anyone could help me,
many thanks.
Dani.
