Calculating Latency of DSP Builder System if Channel In and Out Blocks not used

[Altera_Forum]

Hi everyone, 

 I want to implement basic averaging block in dsp builder and control it by using qsys.   I have added five register field to obtain data from qsys and then I add them by using five inputs adder then multiply the result with 0.2. Finally, I write the result of the multiplication to the RegOut block. I have not used channel in and channel out blocks as in the example of demo_regs.mdl. Therefore, I do not know the latency of my dsp builder system. If I read the RegOut block soon after writing the data registers I read wrong result because the dsp builder system has not calculated the result yet.  How can I know the latency of my dsp builder system and how can I understand finishing of the calculation?  Thanks,  Omer

[Altera_Forum]

--- Quote Start ---  Hi everyone,  I want to implement basic averaging block in dsp builder and control it by using qsys.   I have added five register field to obtain data from qsys and then I add them by using five inputs adder then multiply the result with 0.2. Finally, I write the result of the multiplication to the RegOut block. I have not used channel in and channel out blocks as in the example of demo_regs.mdl. Therefore, I do not know the latency of my dsp builder system. If I read the RegOut block soon after writing the data registers I read wrong result because the dsp builder system has not calculated the result yet.  How can I know the latency of my dsp builder system and how can I understand finishing of the calculation?  Thanks,  Omer  --- Quote End ---    just pass some data and visualise the result (using spectroscope block of simulink) at any point

[Altera_Forum]

Hi Kaz, 

 This is my dsp builder system. Where can I pass some data and see the result from the scope?

[Altera_Forum]

unfortunately can't open your design. 

for input use any of the "sources" blocks(of simulink) for visualising use scope from "sinks" blocks(of simulink)

[Altera_Forum]

Have you tried using GPIn / GPOuts, then using Properties ... > Block Annotation > latency = %<latencyCorrection>