C5515 interface with external FIFO

davidw

1) I need to setup an interface to read data from external FIFO and write them to internal SARAM . The FIFO depth is about 2048kW with 16 bit data bus. What kind of interface and data transferring strategy should I use to achieve fastest data transferring rate.

2) I need to setup an interface to read data from external FIFO and write to USB Endpoint FIFO . The external FIFO depth is about 2048kW with 16 bit data bus. What kind of interface and data transferring strategy should I use to achieve fastest data transferring rate.

Thanks.

over 14 years ago

0 Wen Li over 14 years ago

TI__Expert 8511 points

The fast way to do this is to hook up the external FIFO to the EMIF interface of DSP. So your FIFO becomes a memory mapped device. Then use DMA to transfer the data from EMIF to SARAM.

0 davidw over 14 years ago in reply to Wen Li

Prodigy 55 points

Thanks for the reply. Do you have any wire diagram between EMIF and FIFO? The FIFO could be either Synchronized or Asynchronized in my application. What I am not sure is that FIFO doesn't have address pins, then how to map the FIFO?

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C5515 interface with external FIFO