Hi,
I have upgraded my keil IDE:: LPC1800_DFP version from 2.6.0 to 2.7.0. my program is built with no error. Now i am trying to debug my program using ULINK2. But i am not able to debug. it is always showing error message. "could not stop cortex M device, please check the JTAG".
But the same setup is working fine and able to debug, when i am using version 2.6.0.
Even i tried with changing the JTAG clock as 1MHz and 10MHz
Could anyone tell how can i resolve this issue
Thanks
Alagappan M
Also note i am able to do Flash and erase.
Here i am getting 2 different error messages at different scenario
scenario 1: once i loaded the program which is upgraded to 2.7.0, then it is giving error message as "could not stop cortex M device, please check the JTAG"
scenario 2: I tried first erasing the chip and trying to debug. On that time i am getting error message as "CPU locked up stopping target"
Could someone tell how to fix? Ant support from Keil is there or not?
This is a user forum, support has direct contact information.
Re-read the overview if this isn't clear http://www.keil.com/forum/
Check SWD connectivity rather than JTAG Check "Connect under Reset" options Check the device is powered and connected properly, and you are not running code that is breaking the debugger interface. ie reconfiguring the pins it uses.
Check the availability of local training and support resources. ie teachers, people you work with, people you went to school with, etc.