Re: Serial port speed
"Mauro Farracha : Tyrex" <[email protected]>
| Newsgroups | gmane.comp.hardware.microcontrollers.tini |
|---|---|
| Message-ID | <[email protected]> |
Hi, > > 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 This might be a ridiculous question, but since english is not my strongest language, what do you mean by "byte banging"? I use Hyperterminal to send a file full of characters, and the serial port (in my java application) only reads 56/58 characters (560 bits) with a 115200bps... the code line that i use is spin.read(buffer,0,buffer.length)... where is the byte banging??? My fisrt thought was that windows use internal buffers for COM1... but 560bits to 115200 its a lot! Thank you! > on the PC as high as 10ms per byte. (Solaris is about 30ms) This could > be the source of the slow I/O. > > 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? > _______________________________________________ TINI mailing list TINI-6tN4nzCoH/[email protected] To UNSUBSCRIBE, edit your profile, or see list archives: http://lists.dalsemi.com/mailman/listinfo/tini