Generating Bipolar Encoded signal using MCU

Amr Wael

Member level 5
Joined
Jul 13, 2020
Messages
84
Helped
0
Reputation
0
Reaction score
1
Trophy points
8
Activity points
866
Hello ,

I would like to make bipolar encoding using microcontroller STM32 , I have 2 states only 1 and 0 ,
What hardware can be used to generate this signal with the MCU , is there an IC or should I build a circuit ?

Here is a link for the waveforms that I desire to generate

Bipolar encoding - Wikipedia

en.wikipedia.org
Thank you very much in advance.
 

Sort by date Sort by votes
Hi,

my first question is: Why? Aren´t there better/simpler solutions?

With two sates only (one signal) it can´t work. You need at least a second signal. I´d vote for some kind of "clock" signal.
--> USART instead of UART .. for example.

****
Hardware:
It depends on signal voltages, currents, impedances, frequency / baud_rate ... and so on.

In simplest case you could use an RS232 transmitter IC,
But you could also use other ICs, like flip flops and analog_MUX.
or a circuit based on discretes like transistors.

Klaus
 

Upvote 0 Downvote
From the article it appears as though output is determined from your data as well as incoming clock pulses. This brings to mind a D flip-flop whose changes of state are delayed until a clock pulse arrives. JK flip-flop is similar.

Flip-flops have Q and bar-Q outputs. As each is an inversion of the other, you can obtain bipolar AC by connecting a load across them. Can your mcu do the same thing if you program two of its outputs to be at inverted states of each other?
 

Upvote 0 Downvote
You must log in or register to reply here.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…