CCS register window EDMA_CC0

Boris Ruvinsky

Other Parts Discussed in Thread: OMAPL138

Dear E2E:

Is EDMA_CC0 accessible by ARM in OMAPL138?

I use OMAPL138 with emulator "Blackhawk-M".

When emulator is connected to JTAG port and to ARM processor - the EDMA_CC0 is not shown in the "register window" - I can see EDMA_CC1 only.

EDMA_CC0 is shown in "register window" when emulator is connected to the DSP processor on OMAPL138 - I can see both EDMA_CC0 and EDMA_CC1.

That is why I am asking - if ARM processor on OMAPL138 can control EDMA_CC0?

According to data sheet "Memory Map" - EDMA accessible by ARM and DSP processor.

CCS version which I use is: 4.2.4.00033

Thank you fort your help,

Boris Ruvinsky

over 13 years ago

0 Ki over 13 years ago

TI__Guru**** 480691 points

Hi Boris,

I took a look at the device XML file for the OMAP L138 and it looks like a line is missing in the XML file which specifies EDMACC0ARM. I manually added the line and attached a copy of the the file to this post.

Replace the one that exists in : <INSTALL DIR>\ccsv4\common\targetdb\devices

Note that I modified the one for the L138 configuration and not the one with PRU.

Thanks

0 Boris Ruvinsky over 13 years ago in reply to Ki

Expert 1410 points

Hi Ki.

Thank you for your help.

I replaced the file as you said and now I have EDMACC0ARM shown in the register window.

But I see all "0", no Revision ID and can't modify the register contents. What the reason can be?

And also OMAPL138 includes PRU unit according to DS. Should the file be replaced for OMAPL138_PRU?

Thank you,

Boris

0 Ki over 13 years ago in reply to Boris Ruvinsky

TI__Guru**** 480691 points

Sounds like the device is not properly initialized. Are you using the L138 GEL file for the ARM?

0 Boris Ruvinsky over 13 years ago in reply to Ki

Expert 1410 points

Hi Ki.

Thank you very much for your help.

I found the problem in initialization with PSC for EDMA0.

Thank you,

Boris

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CCS register window EDMA_CC0