Originally Posted by samdun
I have used putty to perform serial communication between PCs and microcontrollers in serial mode. I know that in serial, the raw ascii values are transmitted. So what is the difference between the serial and raw modes.
Hmm, putty is a fine piece of software, though not really related to Linux. Anyway, let me read the putty manual for you. Section 2.1:
The fourth protocol, Raw, is not used for interactive login sessions; you would usually use this for debugging other Internet services (see section 3.6). The fifth option, Serial, is used for connecting to a local serial line, and works somewhat differently: see section 3.7 for more information on this.
Section 3.6 then explains that raw
allows you to connect to a service that listens to any internet port and transmit whatever you are typing "as-is".
on the other hand allows you to connect to a computer or device that is connected via a serial cable, and has therefore nothing to do with raw