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Participant
Participant
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Registered: ‎06-06-2016

shift register in HLS test using BRAM & ILA

Hello,

I am new in Vivado HLS (though I completed Xilinx training on HLS). 

 

I written simple shift register code (later need to design FIR filter!) using C (Fig1 in attached file). I checked the functionality using c-based testbech (Fig2 is a result). For the realtime test, I provided same input signal (like in c-based test-bench) from Block ram, and checking output from shift register (HLS-IP) using ILA. The output Y is giving always 0 (Fig4). 

 

I investigated that shift register is not shifting the value. 

 

Am I missing anything. 

 

Thanks for your kind help. 

 

 

 

shift_reg_hls.png
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