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Altera_Forum's avatar
Altera_Forum
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12 years ago

Can not use 'valid' signal for back pressure when modelprim subsystem using folding?

we are using the DSP Builder Advanced Blockset. we use the ChannelIn 's valid signal for back pressure (connected to a latch_1L blcok)in modelprim subsystem , and when we enable folding, the erro...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

I do a design with modelprim module of DSP Builder Advanced Blockset. The "ChannelIn" and "ChannelOut" are the base module of modelprim. The design need to be enabled by the "valid" signal of "ChannelIn", so I connect the "valid" signal to a latch_1L block, but when I enable the floding of the "ChannelIn" and "ChannelOut", I get the error message: "the ChannelIn 's valid can only be connected to ChannelOut's same signal", Is this mean I can not implement the back pressure and folding at same time?