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AURIX™ Forum Discussions

User18151
Level 3
Level 3
First solution authored
‎Jan 20, 2020 03:12 AM
‎Jan 20, 2020 03:12 AM

Why is write to core special function register(CFSR) not working?

Hi all,

I am trying to write to a core register and the write is not working. What could be the reason?

Thanks in advance!
Christine

#8042000 13590
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User18237
Level 5
Level 5
First solution authored First like received
‎Jan 20, 2020 04:17 AM
‎Jan 20, 2020 04:17 AM

Re: Why is write to core special function register(CFSR) not working?

Hi Christine,

For its own core special function registers (CSFRs), the CPU must access them using MTCR and MFCR instructions. On the other hand, for core registers of other CPUs, the CPU should access via the SRI.
Note: For SFR registers of any CPU, this may only be accessed using load and store instructions via the SRI.

Best regards,
Mr. AURIX™
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