Max BAUD/transfer rate over USB VCOM?

[lpcware]

Content originally posted in LPCWare by rsp5y on Thu Oct 16 12:44:08 MST 2014
Hi,

I'm using the USB CDC VCOM library on my Keil MCB4357 board. From what I understand about VCOM, it automatically adjusts its BAUD rate automatically with the host?

For example, if I connect with my host at 115200, the VCOM port will deliver at that rate. If I change this to 230400, it will adjust to that as well.

What is the upper limit on this? ie, how high can I go through VCOM communication on my host application (java app on a PC) before the LPC4357 can no longer keep up?

Thanks for your help!

[lpcware]

Content originally posted in LPCWare by rocketdawg on Thu Oct 16 19:40:41 MST 2014
it will always be limited by the PC (host)  side hardware.
the common 16C550 can only do 115200.
Some USB FTDI can go 921600 but I doubt that that is the throughput, just the char by char rate.