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danduan2's avatar
danduan2
Icon for New Contributor rankNew Contributor
5 years ago

intel FPGA clkusr pin

Hi, Intel, I want to know how to use clkusr pin for FPGA transceivers calibration and recalibration. Could you help to provide some advices? 1. if i want to use clkusr for my logic, 1) i a...
CheepinC_altera's avatar
CheepinC_altera
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,


Sorry for the delay. I have just received a valid response from Factory on our consultation. As I understand it, it is possible to use the CLKUSR pin for both XCVR and core logic.


The following some sample to instantiate the CLKUSR for core usage:


module top (

input refclk,

input clkusr,

...

);


altera_a10_xcvr_clock_module reset_clock (.clk_in(clkusr));


test u0 (

.mgmt_clk_clk ( clkusr ),


Please let me know if there is any concern. Thank you.



Best regards,

Chee Pin