The good alternative was to use the AXI Data Mover. – The transfer commands are delivered by AXI4 Stream. – The status of transfers are delivered back by. The AXI Datamover is a key Interconnect Infrastructure IP which enables high throughput transfer of data between AXI4 memory mapped domain to AXI4- Stream. For you, you are probably looking at AXI Datamover or AXI Central DMA. ” Xilinx provides the AXI Virtual FIFO Controller core to use external.
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It’s a bit strange that the second transfer cannot be executed, since a the FSM goes through through the same steps in the second iteration as it did in the first one, so the protocol is being followed, and b as far as I understand, there’s no need to do any kind of inter-transfer [re]initialization of the DataMover block or is axxi Additional Resources The following information is listed for each version of the core: The is still a problem though.
AXI Datamover Design Problem – Community Forums
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I did tried the Validation, and even it could synthesize, just with the warning about the different width.
Certain products are subject to the terms and conditions of the Limited Warranties which can be viewed at http: Please daamover to a Xilinx. Have you tried validating the block design?
Still working on it though. I’m not quite sure why that is happening.
Please upgrade datwmover a Xilinx. However, when a second write command is issued, the tready signal of the s2mm bus is deasserted, and never asserted again.
You may not reproduce, modify, distribute, or publicly display the Materials without prior written consent. As I am connecting a normal fifo to this input, which is not master axi, then I created an AXI fifo, with the correct width, validate, erase and finally with the correct width connect my normal fifo in the place I had it before. I am keeping a count of the 1us clock cycles to enable me to do that.
I greatly appreciate your help. Xilinx products are not designed or intended to be fail-safe or for use in any application requiring fail-safe performance; you assume sole risk and liability for use of Xilinx products in Critical Applications: The command word settings are as follows: The VHDL code now does the following: Also, based on dagamover, I have included a wait state that issues a command ahead of time after the data becomes available.
Maybe some other ways to achieve similar effect? ChromeFirefoxInternet Explorer 11Safari. These commands will bypass cache and give you the actual values located in memory instead of datamoevr cached values. Embedded Processor System Design: I am trying to create a design using the AXI datamover datamovsr a Zynq design using a zedboard yet I am really struggling.
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. After that I just use a pointer to read out the contents of memory location 0x I changed axu HDL code for testing purposes. I am on a similar project but need a little bit more time to tell if it works as expected. Actually I do disable cache in my code adi reading the memory location simply by including the following:.
For the datamover I have an independent state machine for the catamover AXIS master that keeps on switching between idle and write states. All forum topics Previous Topic Next Topic. ChromeFirefoxInternet Explorer 11Safari. I’m facing a similar situation and I’m curious to see how you fixed it.
Afterwards, and since I am sending bit word at a time, I will include the logic to keep on incrementing the SADDR every time I receive a new data word to send.
I have a state machine running for the data that would send a bit data word xatamover time a new value becomes available.
I was not aware that the status interface had the ability to prevent data from being transferred. Currently I have the command word set for fixed address which I am doing until I get the design to work.
The command word sxi are as follows:. If it is then how would I know how many clock cycles are enough? I would really appreciate more insights getting the datamover to work has been really frustrating. You have the same problem? But thanks to your sugestion, I tried once more with no result. I was just curious about your experience.
I use the regular fifos as I need to cross clock domains and change the data width accordingly to mantain my throughput.