Litochevski, Moti

MULLER, Steve

UART to Bus

Can you explain the calculation formulas of the two parameters baud_freq and baud_limit in detail?
After reading the formula, I have been unable to understand how the formula was generated.

Parameter Calculation Formula Questions

At binary mode protocol:
When you are sending constant zero byte, then sending NOP command with ack flag (bit 0) = zero at UART rx module, I see the ack is still recieved at UART tx module.

Ack is received for binary NOP command even if ack bit was zero

In file baud_gen.v line 9, written
"baud_limit = (global_clock_freq / gcd(global_clock_freq, 16*baud_rate)) - baud_freq";
I think it should be "baud_limit = (global_clock_freq / gcd(global_clock_freq, 16*baud_rate))",is it right? if not,can you explain the formula? thank you!

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UART to Bus