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Have you tried the CDL option
CYGHWR_HAL_ARM_LPC2XXX_IDLE_PWRSAVE
Here is the description. I put it in when I was having problems with the JTAG dropping out.
Select this option when it is desired to save power by stoping the processor clock in the idle loop. This is controlled by the PCON register. Generally this is a good thing, but it may be necessary to disable this when debugging via JTAG, as stopping the clock can prevent the debugger getting control of the system."
Hope that helps,
Andy..
A lot in fact, that was it -.- Thank you all again!
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