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Not able to debug after doing version updation in keil

alagappan muthiah

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

Parents
  • 0 in reply to alagappan muthiah

    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.

Reply
  • 0 in reply to alagappan muthiah

    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.

Children
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