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Altera_Forum
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14 years ago

Strange and random (!?) error of the Control block

Hi everyone, sometimes it happens that I get the following errors, the problem is that they seem to appear in a random way, for example my design was working correctly but I needed to rename it...
Altera_Forum's avatar
Altera_Forum
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14 years ago

Im facing a similar error in another design:

Altera DSP Builder Advanced Internal Restriction: 'inPort.m_inWidth <=WIDE_MAX_DATAWIDTH'. Error in block '...Subsystem/tdm_Mux_coef_2_re_c' in mip_common/hw_fu.cpp:1299.

Error in '.../Control' while executing C MEX S-function 'mip_control', (mdlStart), at time 0. MATLAB error message:

Altera DSP Builder Advanced Internal Restriction: 'inPort.m_inWidth <= WIDE_MAX_DATAWIDTH'. Error in block '.../Subsystem/tdm_Mux_coef_2_re_c' in mip_common/hw_fu.cpp:1299.

I get the same error for 3 mux, 2 of them feeding the same multiplier and another one feeding another mux.

I have tried the solution of the Convert block to descrease the datawidth, even if i could not but i wanted just to check if it would work or not, but at the end i get the same error.

I get also a funny thing, let's say i have Mux1, Mux2, Mux3, if I add the convert blocks to Mux1 then I get error on the Mux2, if I add them also to Mux2 I get the error on the Mux3, if every Mux has the convert blocks I get the error again on the Mux1 !

Any of them has loops.

Thanks!