Errata

Error 1

In the top-level file uart_led.v of lab2, there is an error regarding the handling of the rst_clk signal: The error is caused by an inversion applied to the rst_clk signal in the design, which results in rst_clk being incorrectly inverted to high when the button is not pressed (default low level). This causes the reset signal to remain active, preventing the system from functioning properly in an idle state. Consequently, the system does not show the expected behavior without intervention, and the reset button must be manually pressed to observe the desired experimental effect.

The specific issue is found on line 69 of uart_led.v:

    .signal_src   (~rst_pin),

The same logic in lab3, lab5, and lab6 does not have this issue, as the inversion operation was not applied.

• Contact the instructor to correct the error

Erroneous logic experiment phenomenon:

Error 2

In Lab 4, steps 2-2-4 and 2-2-5 do not need to be performed because the clk_core clk_core_i0 already exists, and it does not need to be added again.

• Contact the instructor to correct the error