Can the DSP in OMAP3530 get data directly from the GPMC? In other words, Can the DSP operate the GPMC?

*** Liu

Other Parts Discussed in Thread: OMAP3530

I connect OMAP3530 to a FPGA through GPMC interface,  and the FPGA is connected to a AD circuit. I need read AD data in realtime, and I want to use DSP to read data from AD and let ARM do other things.
I want to know, can the DSP get data from the GPMC interface directly? or only the ARM can operate the GPMC interface?

Thanks!

over 13 years ago

0 BrandonAzbell over 13 years ago

TI__Guru 64490 points

*** Liu said:

I want to know, can the DSP get data from the GPMC interface directly? or only the ARM can operate the GPMC interface?

Yes, the DSP inside the OMAP3530 can access the GPMC directly. Indications of this is provided in the Technical Reference Manual (SPRUF98) in Chapter 5 Interconnect in Table 5-14, the L3 interconnect connectivity matrix. Here it indicates the IVA2.2 subsystem (aka. DSP), as an initiator, has a functional path to the GPMC target.

0 *** Liu over 13 years ago in reply to BrandonAzbell

Prodigy 140 points

OK, I understand.

Thanks a lot!

Thanks for your help!

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Can the DSP in OMAP3530 get data directly from the GPMC? In other words, Can the DSP operate the GPMC?