2 Replies Latest reply on Aug 19, 2020 11:30 AM by MiZh_4707896

    Cannot find ETM(Embedded Trace Macrocell) on CYW43438

    MiZh_4707896

      Hi,

       

      The CYW43438 block diagram shows that its Cortex-M3 core has ETM.

      But I try to read its registers from 0xE0041000, I got all 0xFFFFFFFF.

      I read it through SDIO brcmf_sdiod_readl().

       

      Can I read the MMIO registers through SDIO interface? Or something I did it wrong?

       


      Thanks

       

       

       

      Best Regards,

      Mingbo