accessing display controller from DSP in OMAP 3530.

Manoj R

Intellectual 390 points

Other Parts Discussed in Thread: OMAP3530

Hi,

Is it possible to acess the display controller through DSP in OMAP 3530.

I want to display an image after decoding by 64x+ using CCS.

Please let me know if this is possible with out using ARM at all.

Thanks,

Manoj

over 17 years ago

Juan Gonzales over 17 years ago

TI__Mastermind 37340 points

Based on the technical reference manual

http://focus.ti.com/lit/ug/spruf98b/spruf98b.pdf

I belive this should be possible.

Manoj R over 17 years ago in reply to Juan Gonzales

Intellectual 390 points

Hi Juan,

Thanks for ur reponse.

Can you please tell me , to whcih point in TRM you were referring to arrive at this opinion.

Thanks,

Manoj

BrandonAzbell over 17 years ago in reply to Manoj R

TI__Guru 64920 points

Chapter 2 of the TRM (SPRUF98) discusses the Memory Map of the OMAP3530 device. Please reference Table 2-10 to get the IVA2.2's (DSP) view of the device memory map. The last entry in that table shows the IVA2.2 access to memory and peripherals on the device and the address range.
The DSS is in that range.

Bernie Thompson TI over 17 years ago in reply to BrandonAzbell

TI__Mastermind 41665 points

Just a comment on this, though it is physically possible to do, we do not have software support for this as mentioned in https://community.ti.com/forums/p/2470/9909.aspx#9909 therefore you would have to write your own C64x+ based display driver which is no small task even if you leveraged the existing Linux display driver source.

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accessing display controller from DSP in OMAP 3530.