LPC MicrocontrollersのトピックLPC55S69: portSWITCH_TO_USER_MODE() is not defined

LPC55S69: portSWITCH_TO_USER_MODE() is not defined

EugeneHiihtaja — Mon, 09 Dec 2019 13:04:43 GMT

Hello !

Do you have idea why macro portSWITCH_TO_USER_MODE() is not defined for freertos ?

Regards,

Eugene

Re: LPC55S69: portSWITCH_TO_USER_MODE() is not defined

xiangjun_rong — Wed, 11 Dec 2019 07:32:30 GMT

Hi, Eugene,

I have searched "portSWITCH_TO_USER_MODE() " as a key words in google, the api function is related to MPU(memory protection unit), which can limit the resource scope a task can access. I think the freeRtos example does not use the function.

XiangJun Rong

Re: LPC55S69: portSWITCH_TO_USER_MODE() is not defined

EugeneHiihtaja — Wed, 11 Dec 2019 08:07:01 GMT

Hi XiangJun Rong !

This macro must to be implemented as part of freertos port for LPC55.

But it missing.

Regards,

Eugene