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Registered: ‎08-15-2017

how to get the right data from xadc ip when the xadc ip is instantiated ?

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now I am using xadc, I have implemented using ps_xadc interfaec to acess the xadc via the linux driver which xilinx provides,and get the right data ; now I need to construct a system having a self_defined IP to get the xadc ip data via AXI STREAM,but when  the xadc is read from ps via axi  interface   ,I get the wrong data,

and what I want to know is :

1.  I know there are linux driver for xadc when ps_xadc interface is used ,and is there a independent linux driver just for axi_xadc interface when xadc is accessed from ps side ? can a example be provided ?

2. when xadc ip is instantiated, and operated via ps_xadc interface , is it same with using  axi xadc interface or not? can I get the xadc data from axi_stream interface correctly too ?

that is when xadc is  instantiated,a axi_xadc interface is created, the  dedicated ps_xadc can be used too on the same time ,right ?

the two interface can all  operate the xadc ip ,and have the same influence to the xadc ip ,right ?

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Community Manager
Community Manager
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Registered: ‎08-08-2007

Hi @microchip_zhang 

 

This Xapp may be of interest to you : https://www.xilinx.com/support/documentation/application_notes/xapp1182_zynq_axi_xadc_mon.pdf

Thanks,
Sandy

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Community Manager
Community Manager
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Registered: ‎08-08-2007

Hi @microchip_zhang 

 

This Xapp may be of interest to you : https://www.xilinx.com/support/documentation/application_notes/xapp1182_zynq_axi_xadc_mon.pdf

Thanks,
Sandy

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