Debugging SABRESD with JTAG BDI3000

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Debugging SABRESD with JTAG BDI3000

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AlanSouza
Contributor III

I was trying to debug a custom board with BDI3000 but I was having issues, so I tried with SABRE but the issues persist.

The state after powering up with BDI attached seems good to me:

IMX6#0>info

    Core number       : 0

    Core state        : debug mode (ARM)

    Debug entry cause : Debug Request

    Current PC        : 0x2780ad40

    Current CPSR      : 0x600001d3 (Supervisor)

    Current SPSR      : 0xca0c196d

 

However, I can't correctly read and write from memory.

Example:

 

IMX6#0>md 0x8a000000 1        

8a000000 : 0x00000071          113  q...

 

IMX6#0>mm 0x8a000000 0x1234abcd 1

 

IMX6#0>md 0x8a000000 1        

8a000000 : 0x00000061           97  a...

 

IMX6#0>mm 0x8a000000 0x12345678 1

 

IMX6#0>md 0x8a000000 1        

8a000000 : 0x04000071     67108977  q...

 

Apparently, it is not writing what is expected to. I need to make this process consistent an then load the u-boot into memory.

 

Does anyone know what is happening? Or maybe have a better configuration file?

 

I'm using the attached configuration file. Any help would greatly appreciated.

Original Attachment has been moved to: regCortex-A9.def.zip

Original Attachment has been moved to: imx6.cfg.zip

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Yuri
NXP TechSupport
NXP TechSupport

  It is needed to init memory. Please refer to the following

resources about it.

DDR Script Aid tools :

https://community.freescale.com/docs/DOC-94987

https://community.freescale.com/docs/DOC-99450

https://community.freescale.com/docs/DOC-95089

https://community.freescale.com/docs/DOC-94917

  1. i.MX6 DDR Stress Test Tool V1.0.3

"DDR3 Porting Guide"

https://community.freescale.com/docs/DOC-101708

Have a great day,

Yuri

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