Community
cancel
Showing results for 
Search instead for 
Did you mean: 
DVonA
Beginner
143 Views

Why is this wire not driven in functional simulation?

Hello

 

I am trying to implement a basic UART transmitter in the project "uart_test" attached. The top level entity has two blocks, "baud-generator" and "uart-transmitter".

 

schematic.PNG

 

 

During simulation, I plot the accumulator register in the block "baud_generator" and get the expected result. However, the plot window shows an "X" output for the node "clk_out" (even though this output is assigned to accumulator bit 16 - baud_accumulator[16] - in "baud_generator").

 

sim_results.PNG

 

 

I'm not sure what I set up incorrectly in the simulation?

0 Kudos
0 Replies
Reply