So , can you try the 1024HZ for kernel scheduler ? And , do you have fflush () after you write uart ?
2014-11-25 23:51 GMT+08:00 Thomas O <[email protected]>: > Hey liyaoshi... I am running both uarts in 3,000,000 bytes per second! It > is the problem that i get long delys 10ms or more so it is not related to > speed but to latency. > Also it seems the kernel only copies from kernel space to the uart in that > same 10ms intervals. so it fills up the send queue for 10ms. > > On Tuesday, November 25, 2014 1:54:06 AM UTC, liyaoshi wrote: >> >> speed up to 921600bps or more if your remote uart can work >> >> 2014-11-24 19:17 GMT+08:00 Thomas O <[email protected]>: >> >>> Hi all i am writing some software using the OMAP_SERIAL drivers to send >>> and receive data from a c program (TERMIOS). >>> >>> I am seeing large delays 10ms ticks when sending and receiving data on >>> the UARTS >>> >> -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
