The instruction 'mtpmr' and 'mfpmr' is affect when disable the S32R274 ICACHE

[yadi_zhang]

what is the cause of this case?

[petervlna]

Hello,

Could you be please more specific and share more details on the question?

best regards,

Peter

[yadi_zhang]

I use the Autosar OS，In the main funtion，I use the mtpmr intstruction, read core id from SPR286 to PMR 384

the Instruction  mtpmr is faild as disable the z70 Instruction Cache