CM4 fpga via EIM

[jingyangxie]

Hi,Yuri

     Do you know something about cortex-M4 accessing fpga by EIM?

    I have read the imx6sx.RM,but don't find the answer.

   Looking forward your help!

[Yuri]

Hello,

  I am afraid, we do not have special example for CM4 using with the EIM.

  You may look at section 23.7 (Typical Application) of i.MX 6SoloX Reference

Manual, Rev. 2, 9/2017 - how to configure EIM registers. It does not depend on what core is

accesses EIM: CA9 or CM4.

  For CM4 addressing its mapping should be used, please refer to Table 2-2 (CM4 memory map).

  Also, the RDC should be configured to allow CM4 access to EIM. Please use Chapter 52

[Resource Domain Controller (RDC)].

Have a great day,
Yuri

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[jingyangxie]

Hi,Yuri

How can I mapped the EIM address On CM4，while On A9，I can use mmap() the address(0X50000000) decribed in Chapter2

[Yuri]

Hello,

 it depends on application, working on the CM4. 

Regards,

Yuri.

[jingyangxie]

Hi,Yuri

Could you give an example for any address that CM4 can access FPGA by EIM correctly?