Re: Serial port speed
Bryan Armstrong <bryan.armstrong-6tN4nzCoH/[email protected]>
| Newsgroups | gmane.comp.hardware.microcontrollers.tini |
|---|---|
| Message-ID | <[email protected]> |
Mauro Farracha : Tyrex wrote: > Im new in the embedded world and i don't understand too much about > communication speed etc etc... > > Im still waiting for the developing kit, but im already testing my java > application. Im using the PC to simulate the Tini board (Serial to Serial) > using HyperTerminal. With a timeout in the serial port(115200bds) to read > bytes of 2 seconds, i just can send through the hyperterminal 56/57 characters > , i questioned my self when i get the Tini Board if it will be slower, since > my PC is far better than the Tini Board. > > The problem is related with the windows by itself or applications in java > are slower by nature? > Is there a solution to speed up the communication? At 115200 you will get around 11K bytes in one second. If you are byte banging the I/O (read one byte/write one byte) you could see latencies on the PC as high as 10ms per byte. (Solaris is about 30ms) This could be the source of the slow I/O. -- -- Bryan Armstrong bryan.armstrong-6tN4nzCoH/[email protected] _______________________________________________ TINI mailing list TINI-6tN4nzCoH/[email protected] To UNSUBSCRIBE, edit your profile, or see list archives: http://lists.dalsemi.com/mailman/listinfo/tini