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Altera_Forum
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14 years ago

MATLAB/DSP Builder megablock timing issues

I am trying to use the fir_compiler_v11 Megablock in MATLAB/Simulink but can't figure out how to change the internal timing. I have 200 coefficients that I want to use only one multiplier with. I hav...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

I did mean Simulink sample time. However when I open the Megablock GUI there is no way to modify the clock time of the block. I can change the amount of clocks to compute which changes the multipliers used accordingly. When I set the clocks to compute to compute to 200 (because I have 200 coefficients) and run the simulation in MATLAB the output changes every 200 seconds of simulation time. This tells me that the Megablock sample time is 1 second which doesn't make any sense.