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bin9000
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Registered: ‎12-09-2018

How do I use burst transfer using AXI Full interface

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If I want to transfer one data with AXI Lite interface, I just typed functions in C code in SDK, which is "Xil_Out8, Xil_In32.." 

 

But I don't know how to use burst transfer. 

What functions should I use in C code to use burst transfer?

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florentw
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Moderator
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Registered: ‎11-09-2015

Hi @bin9000 ,

You might want to search for an answer on the forums before posting as there might be the answer already:

https://forums.xilinx.com/t5/AXI-Infrastructure/AXI-burst-access-to-the-AXI-full-slave-from-Microblaze-is-this/td-p/843235

https://forums.xilinx.com/t5/AXI-Infrastructure/How-Do-I-Perform-an-AXI-Burst-in-Software/td-p/592502

 


Florent
Product Application Engineer - Xilinx Technical Support EMEA
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florentw
Moderator
Moderator
912 Views
Registered: ‎11-09-2015

Hi @bin9000 ,

You might want to search for an answer on the forums before posting as there might be the answer already:

https://forums.xilinx.com/t5/AXI-Infrastructure/AXI-burst-access-to-the-AXI-full-slave-from-Microblaze-is-this/td-p/843235

https://forums.xilinx.com/t5/AXI-Infrastructure/How-Do-I-Perform-an-AXI-Burst-in-Software/td-p/592502

 


Florent
Product Application Engineer - Xilinx Technical Support EMEA
**~ Don't forget to reply, give kudos, and accept as solution.~**

View solution in original post

dgisselq
Scholar
Scholar
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Registered: ‎05-21-2015

You might find this discussion and comparison interesting.  It goes through a cycle-by-cycle logic explanation showing why a CPUs bus access isn't nearly as fast as the CPU itself.  It also demonstrates CPU logic, albeit not MicroBlaze, that can interact with a bus at one transaction per 10ns cycle for an extended period of time.

Dan

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