This is for UART ? There may even be a kernel boot config option that will work with this hardware as well. Meaning: No need to recompile the kernel to see if it works.
On Tue, Nov 25, 2014 at 7:47 PM, liyaoshi <[email protected]> wrote: > 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. > -- 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.
