Many fpga chips have some built-in IP resources. This test is used to verify the SparkRoad clock system and how to reference the built-in PLL resources.
module ledflash(clk,led,x);inputclk;
output led
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1. What is the reason why the servo motor cannot start and makes loud noise and vibration? Answer: 1. Disconnect the load. 2. Turn it by hand to confirm that it is flexible and has no abnormalities. 3