My Programs runs well when using UDE and LPC1000. But it is not running standalone, what could be the reason?Probably you flashed a wrong checksum to reserved vector location 7 (Offset 0x1C).
The bootcode does not start your application if the checkksum is invalid. The checksum is simply the twos complement of all DWORDs before.
Solution: Either set a valid checksum in your startup code area or use UDE's build in checksum driver:
Open Memtool Dialog Press Setup, go to driver card Select Use standard FLASH-Driver from library and Press ... Select driver with automatic checksum calculcation from defaults
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