FreeRTOS port for LPC3250?

mschwarzi wrote on Thursday, May 13, 2010:

Hi there!
Has anybody ported FreeRTOS to the LPC3250 µC using GCC? This is a ARM926EJ-S core…… -> FreeRTOS port including the MPU support! ?

Are there any hints for porting? I think the STR9 (ARM9) port could be adapted for this case? Because the cores are nearly the same! Ok, support for floating point must be used (portSAVECONTEXT and portRESTORECONTEXT)

thx in adavance

edwards3 wrote on Friday, May 14, 2010:

Getting basic FreeRTOS running on any ARM9 should be easy, but utilizing the MPU will be harder. Is the MPU the same as the one used on the Cortex M3?

mschwarzi wrote on Monday, May 17, 2010:

OK running FreeRTOS on ARM9 is easy (there is already a port for e.g. STR9) - the LPC3250 uses a VFP. Does anybody know which registers i’ve to save on contextswitch at stack.?

I don’t know anything about he MMU of the CM3…. sry…… what’s the problem using the MMU?