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fifo_rd_underflow is unconnected. Is it an error?

Question asked by IPrium on Nov 5, 2017
Latest reply on Apr 13, 2018 by CsomI

Hello

 

Is it an error?

 

I'm using ZedBoard+FMCOMMS4 and I want to use DAC REG_UI_STATUS UI_UNF bit from here
AXI_AD9361 [Analog Devices Wiki] 

 

It works as expected in hdl_2016_r1, but not in hdl_2016_r2 and hdl_2017_r1.

 

I did simple check:
                   
(1) hdl_2016_r1
hdl/fmcomms2_bd.tcl at hdl_2016_r1 · analogdevicesinc/hdl · GitHub 
axi_ad9361_dac_dma/fifo_rd_underflow is connected to axi_ad9361/dac_dunf

 

(2) hdl_2016_r2 and hdl_2017_r1
hdl/fmcomms2_bd.tcl at hdl_2016_r2 · analogdevicesinc/hdl · GitHub 
hdl/fmcomms2_bd.tcl at hdl_2017_r1 · analogdevicesinc/hdl · GitHub 
fifo_rd_underflow is not connected to any port.

 

If I connect fifo_rd_underflow to axi_ad9361/dac_dunf in hdl_2016_r2 and hdl_2017_r1 all work as
expected.

 

Danil Shendrik, IPrium LLC

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