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Visitor zhg2016
Visitor
2,545 Views
Registered: ‎11-23-2016

zedborad axi 64b write to ddr 32b,why miss high 4 byte?

I want to write data to ddr via hp interface,borad is zedboard.
AXI bus width is 64b,
I set awid=6'b000000,
awlen=4'hf, --burst lenth is 16
awsize=3'b010,--burst size is 4 byte
awburst=2'b10,--burst type is wrap
awlock=2'00;
awcache=4'b0011;
awprot=3'b000;
awqos=4'b0000;
but i can not write 04,0c...this address,burst address inc 8 byte
per trasfer,howto solve?

 

xilinx_question1227a.png

1227b.png

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Teacher muzaffer
Teacher
2,478 Views
Registered: ‎03-31-2012

Re: zedborad axi 64b write to ddr 32b,why miss high 4 byte?

@zhg2016 your burst size should also be 8 not 4 (awsize)

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