Hi NG, I need a good protocol for error free communicating with my msp and a pc. It should be a software protocol (not RS232 with parity) because it should work on other links such as over gsm, too. What about xmodem. Can I use this protocol for communication, too? Can somebody help please?
Thanks, Joachim
TCP/IP I believe is supposed to be error free and is the basis for most communications these days. You can use PPP if using a Circuit Switched Data connection over GSM, or even direct with GPRS.
There are multiple choices. These choices differ in blocksizes or streaming, compression or not, forward errorcorrection, multipoint or master-slave and so on.
Error correction is achieved by a CRC and retransmission. If error spikes are expected, a forwarsd error correction may lower the number of retransmissions.
Rene
Look up zmodem.
XModem is horribly inefficient (78%). For file transfers, maybe ZModem is what you want.
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