Streaming data to EMIF A OMAP-L137

Jack Kilbey

Intellectual 450 points

Other Parts Discussed in Thread: OMAP-L137, SYSBIOS

I want to stream data to EMIF A in OMAP-L137. What should I do? What should I set the first and the last fields of

SIO_create(?,.... , .... , ?) ? I would be very thankful if you help me.

Thank you

Jack

over 11 years ago

0 Titusrathinaraj Stalin over 11 years ago

TI__Guru** 116100 points

Hi Jack,

Please refer the TI wiki for SIO_Create fn usage.

http://processors.wiki.ti.com/index.php/DSP_BIOS_FAQ#Q:_When_does_SIO_create.28.29_function_call_fail.3F

Could you please tell us what are you looking for ?

I want to stream data to EMIF A in OMAP-L137. What should I do? What should I set the first and the last fields of

Generally, EMIFA peripheral is used interface between CPU and external memories.

Streaming means what ? transfer audio or video like that !

What type of code are you working ?

starterware or SYSBIOS or CSL or own code ?

Please bit elaborate your requirement.

0 Jack Kilbey over 11 years ago in reply to Titusrathinaraj Stalin

Intellectual 450 points

Thank you for your quick response

We want to connect an FPGA to EMIF-A expansion connector. We write some data to EMIF-A and read some data from it. We think one of the solutions is using SIO_Stream. We studied some documents. We found some examples such as mcasp and DSPLink that use SIO_stream. They pass "/mcasp" or "/dsplink" as the first parameter to SIO_create function. How should we do this for EMIF-A? I think if we want to use SIO stream we should use SYSBIOS.

Jack,

0 Titusrathinaraj Stalin over 11 years ago in reply to Jack Kilbey

TI__Guru** 116100 points

Hi Jack,

EMIFA to FPGA is very common interface.

We don't have this specific FPGA design, so we don't have examples too.

I think it is simple design, once you have configured (CSx) EMIFA and pinmuxing then it is simple data transfer through CPU/EDMA

Please refer the below TI e2e posts.

http://e2e.ti.com/support/dsp/omap_applications_processors/f/42/t/66359.aspx
http://e2e.ti.com/support/dsp/omap_applications_processors/f/42/t/67273.aspx
http://e2e.ti.com/support/dsp/omap_applications_processors/f/42/t/248717.aspx
http://e2e.ti.com/support/dsp/omap_applications_processors/f/42/t/212740.aspx
http://e2e.ti.com/support/dsp/tms320c6000_high_performance_dsps/f/115/t/160800.aspx
http://e2e.ti.com/support/dsp/tms320c6000_high_performance_dsps/f/112/t/109204.aspx
http://e2e.ti.com/support/dsp/omap_applications_processors/f/42/t/257563.aspx

0 Jack Kilbey over 11 years ago in reply to Titusrathinaraj Stalin

Intellectual 450 points

Thank you for your information.

Can I use SIO_issue and SIO_reclaim for this purpose? if yes, How?

Jack

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Streaming data to EMIF A OMAP-L137