UART character spacing query

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by Scribe on Fri Aug 31 06:20:43 MST 2012
Hi guys,

I'm currently working with the UART on the LPC1200.

In the documentation an interrupt can be triggered if a character isn't received between 3.5 and 4.5 characters time to help flush the rx buffer.

From the transmitting side, I wish to use this to create a clear frame-break. If I disable transmission and re-enable, would there typically be a break of at least 3.5 to 4.5 characters or would I have to use a timer to ensure that I've waited long enough before my next transmission?

Many thanks for any help.