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Cannot enter Debug Mode
Offline
Ahmad Agbaria
over 7 years ago
Note: This was originally posted on 5th April 2011 at http://forums.arm.com
Hi
when downloading to the LM3s8933 microcontroler i get this message "Cannot enter Debug Mode"
is any one know whats the problem.
best regards.
Parents
Offline
Joseph Yiu
over 7 years ago
Note: This was originally posted on 5th April 2011 at
http://forums.arm.com
You need to give more information:
Which toolchain? which debug hardware? Setup as JTAG or Serial wire? Have you try reducing the debug clock frequency? Is the flash programming working at all?
It can be caused by many different factors. E.g.
- debug pins blocked by I/O usage
- incorrect PLL settings
- issues with voltage level on debug pins
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Offline
Joseph Yiu
over 7 years ago
Note: This was originally posted on 5th April 2011 at
http://forums.arm.com
You need to give more information:
Which toolchain? which debug hardware? Setup as JTAG or Serial wire? Have you try reducing the debug clock frequency? Is the flash programming working at all?
It can be caused by many different factors. E.g.
- debug pins blocked by I/O usage
- incorrect PLL settings
- issues with voltage level on debug pins
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