Multicore debugger for NXP's LPC4000

16 February 2011 Computer/Embedded Technology

Keil recently introduced multicore debugging for NXP’s LC4000 family of microcontrollers.

The new LPC4000 devices integrate a multicore system consisting of an ARM Cortex-M4 and a Cortex-M0 processor. This asymmetric multicore system requires additional features from the development tools, in particular the debugger.

In the JTAG mode, a LPC4000 system provides simultaneous access to the two Cortex-M processors using the ARM CoreSight debug/test interface. The Keil ULINKpro debug and trace unit, together with the Keil MDK-ARM (microcontroller development kit) enables two independent instances of the μVision debugger to be run simultaneously. This enables the developer to analyse the application software of the two processors and to identify and correct complex inter-processor communication issues. Once these inter-processor communications are completed, the second processor may be seen simply as another peripheral unit. Further code development can be done using only one instance of the μVision IDE/debugger.

The multicore debugging of ULINKpro is not limited to the LPC4000, but may be used with any system that is composed of multiple Cortex-M processors.

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