Paul Chilton

Electronics, Home Automation & Software Development

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Startup problem with LPC1347

02 Dec 2012

I was having difficulty getting my NXP LPC1347 to correctly run a program when it wasn’t in debug mode connected to the programmer. It turns out that you need to explicitly set a pre-processor symbol to instruct the processor the start running your application when it boots, otherwise it just sits and idles.

In Keil this is found in the C/C++ tab of the project options. Enter ‘STARTUP_FROM_RESET’ in the preprocessor symbols box (put it in without the quotes).

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