QsIssues

After having tested the implementation of the Led Band Controller. I decided to create an IP on QSys. However, we had some problems with that.

Localparam issue

The first problem is a consequence of the use of local parameters. Every interface signals which depend on a local parameter have a length of -1 like angle for instance:

parameter NB_ANGLES = 128;
localparam ANGLE_WIDTH =   $clog2(NB_ANGLES);
input wire [ANGLE_WIDTH - 1:0] angle;

So I would like to know if someone knows how to deal with this problem.

hps_io conduit issue

This problem is a smaller one and has a way to fix it but it is not very clean. Here we would like to connect 4 HPS GPIOs directly in Qsys to the Led Band Controller and send other GPIOs to the top-level module. However, as the image below shows, there are all packed in the same conduit.

The hps_io conduit

Moreover, in Qsys, I only can connect a conduit to another. So I would like to know if it is possible to split this conduit into several ones.

Thank you in advance for the help.

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