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Is it possible to use a ProtoIO pin as a clock driver? The reason I ask is I would like to interface a 40 pin daughter card with an HSMC port using an HSMC to 40 pin debug header but the clocks don't line up. If it is possible, how would I go about assigning this in Quartus?
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--- Quote Start --- Is it possible to use a ProtoIO pin as a clock driver? The reason I ask is I would like to interface a 40 pin daughter card with an HSMC port using an HSMC to 40 pin debug header but the clocks don't line up. If it is possible, how would I go about assigning this in Quartus? Thanks. --- Quote End --- Hi, there is no basic problem to use an FPGA I/O as a ock driver. You have to assign your clock signal to an I/O, which is connected to the HSMC port. You can do that with the Assignment Editor or with the Pin Planer tool in Quartus.
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Yes, you can use the I/O pin as a clock driver. Take care about using a low output drive strength (I suggest you 4mA) in order to avoid annoying overshoots that may intefere with the adjacent data lines.

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