How to access External Memory for the "Mistarl OMAP 3530 EVM Main Board REV D".

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on May 02 2012 01:56 AM

Hi,

I’m working on Mistarl OMAP 3530 EVM Main Board REV D with OMAP Processor Module OMAP 35xx REV B on it along with CCS 5.1 through BackHawk USB 560BP Emulator.

It’s using Samsung Onenand K5W1G1GACM-DL60

Able to acess internal memory from addr 4020 0000
Added gel file “omap3530_cortexA.gel” at new target congiuration, which is supported by CCS 5.1.

According to my understanding this main “omap3530_cortexA.gel” internally calling the following gel files.

CortexA8_CrossTrigger.gel
cortexA8_util.gel
etm_cortexA8_registers.gel
omap3430_prcm_clock_configs.gel
omap3430_reconfigure_firewalls.gel
omap35xx_resets.gel
OMAP35x_AM-DM37x_sdrc_config.gel

Issues::

I tried to access external memory at the addr 0x0000 0000 and 0x8000 0000 which was producing error :: Data Verification Error.
How to access external memory / ? any memory address for it?
Is there any other gel file needs to be added for this board ?

Regards,

Revolution.

All Replies

Posted by Vaibhav Hiremath

on May 03 2012 00:53 AM

Expert8160 points

On OMAP3530 the external memory is mapped at 0x80000000 and you MUST configure SDRC in order to access it. The SDRC configuration must be happening in "OMAP35x_AM-DM37x_sdrc_config.gel", so you just check whether code from this gel file is getting executed or not.

Thanks,

Vaibhav

Posted by Revolution devilmaycry

on May 03 2012 05:33 AM

Prodigy45 points

Hi Vaibhav,

Thank you so much for your concern.

I followed as you mentioned.

1. Changed the External Memory Address 0x8000 0000. Still the error is same (PFA "LoadPrgmError.JPG")

2. Checked OMAP35x_AM-DM37x_sdrc_config.gel, Code is passing through the gel. (PFA "SDRCInitilization_Done_for_mDDR_Samsung_K4X51323PC.JPG")

We can see the "SDRC initilization for mDDR_Samsung_K4X51323PC completed" statement at console.

Please verify cmd and gel files attached. (OMAP3530.cmd and OMAP35x_AM-DM37x_sdrc_config.gel).

As per my observation ::

The Mistral OMAP 3530 EVM Main Board REV D with OMAP Processor Module OMAP 35xx REV B is using Samsung Onenand K5W1G1GACM-DL60 but the memory configured in the ***sdrc_config.gel file is for "mDDR_Samsung_K4X51323PC" ( /*Configure only memory on CS0*/). Is this mismatch causing the Data verification error ?

6036.OMAP3530.rar

Regards,

Revolution.