[CoolRunner II UART controller design]

5 hours ago, zygot said:

Go over to Adafruit or Sparkfun. They sell inexpensive TTL USB UART breakout boards or cables. I use these on boards that have a USB UART capability built in. All you need are two spare IO pins; one for TxD and one for RxD. You can connect the cable or breakout board to a PMOD and have a USB UART that your PC can use.

You can probably find a convenient distributor for these things most places in the world if buying from the sources mentioned is a problem. FTDI also sell a cable a a higher cost.

Be mindful of 5V verses 3.3V logic compatibility when using on older devices.

Hi,

Thank You for your reply. I am planning to buy the below.

https://reference.digilentinc.com/reference/pmod/pmodrs232/start

https://reference.digilentinc.com/reference/pmod/pmodusbuart/start

Could you please let me know if these two would be fine for CoolRunner II board?

Thanks in advance.

 

[CoolRunner II UART controller design]

Recently I bought the CoolRunner II. I have a requirement to design UART controller and execute in that Board. But, I do not see any hardware interface for UART to that board. Could you please let me know what extra hardware I need to implement the RX, TX of the UART?