BF70X external data throughput...
Thread Summary
The user inquired about the data throughput of BF70X external interfaces, particularly for 1Kbyte blocks, considering DMA and internal memory transfer. The final answer directed the user to an application note (EE376) for DDR optimization techniques and bandwidth analysis, suggesting it may provide the necessary information. The accompanying answer recommended examining the application note and associated code for detailed guidance.AI Generated Content
Hi,
Can someone point me to objective numbers on data throughput for the BF70X external interfaces?
Our design will have a BF706 connected to an FPGA, and we want to choose the interface that provides the highest burst performance for ~1Kbyte blocks. We need to take into account DMA / internal memory transfer, too.
If the BF707's DDR interface is considerably better at moving data, then we can make the switch. Otherwise, I'm assuming we'll want to use either the PPI or SMC (static memory) interface.
If hard numbers aren't available, then I would appreciate any guidance on gotchas when trying to determine these numbers ourselves.
BTW, USB isn't an option for us to interface with the FPGA.
Thanks
Bob
Hi There Bob,
There is an application note available that discusses DDR optimization techniques, which includes bandwidth analysis:
EE-Note: http://www.analog.com/media/en/technical-documentation/application-notes/EE376.pdf
Associated Code: http://www.analog.com/media/en/technical-documentation/application-notes/EE376.zip
Have a look and see if it answers your questions.
-Joe
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EZ Admin
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