UART & USB Clock - Cypress.com Forums http://www.cypress.com/? Re: UART & USB Clock http://www.cypress.com/?rID=50874 Hi,

 

In case of USB clock using IMO, the clock syncs with the accurate clock of the USB host (like PC) and hence the clock tolerance reduces to 0.25%.

]]>
Mon, 02 May 2011 01:22:22 -0600
Re: UART & USB Clock http://www.cypress.com/?rID=50774  Thank you for your information, I will give it a try

 

Regards

]]>
Wed, 27 Apr 2011 14:01:41 -0600
Re: UART & USB Clock http://www.cypress.com/?rID=50545 Hi,

 

Using IMO with 4% tolerance might not be of concern if  you are transmitting in bursts, that is, you send data with intervals.

However, if you are transmitting very long chunks of data in a given time, then the small time error might accumulate over a period of time and may result in a bit error which might manifest itself in the later part of the transmission.

Using 2 stop-bits might come in handy to get over this issue.

You can use many UART components as these are UDB based components.

]]>
Fri, 22 Apr 2011 13:15:10 -0600
Re: UART & USB Clock http://www.cypress.com/?rID=50479 Hi,

Doing simple testing, there wasn't any error in 1 UART tx/rx.

It's a warning in Clock design that I was curios about, I intent to use 7 UARTs and 1 USB.

Can I ignore that warning?

 

Thanks

]]>
Wed, 20 Apr 2011 16:23:45 -0600
Re: UART & USB Clock http://www.cypress.com/?rID=50359 Arenosoft,

 

Were you able to see error in UART communication practially  while using IMO of 24MHz?

]]>
Sat, 16 Apr 2011 09:18:35 -0600