[51] want to communicate to RS232 with at89c51

[jay_3189]

I want to communicate at89c51 to computer so i am using rs232.
As i am new to this communication please help me that what i have to do for communication and can anyone give simple example program to just send simple message or data from controller to pc.
Also i need one information that if i have to program each for transmit and receive than how i have to dump it into controller. i mean in single hex file or how?

i am using keil ide.
i have joint to male and female's only 3 pin(2nd, 3rd and 5th) of 9 pin RS232 in wire. is that enough connection?


How about MODE that i have to select in programming. i coundn't undertand that what happen with mode selection actually.
i.e. MODE 0, 1, 2, 3

 

[PRABAKARDEVA]

I want to communicate at89c51 to computer so i am using rs232.
As i am new to this communication please help me that what i have to do for communication and can anyone give simple example program to just send simple message or data from controller to pc.
Also i need one information that if i have to program each for transmit and receive than how i have to dump it into controller. i mean in single hex file or how?

i am using keil ide.
i have joint to male and female's only 3 pin(2nd, 3rd and 5th) of 9 pin RS232 in wire. is that enough connection?

Had u gotten a clear idea about UART Protocol?how to configure the protocol?

 

[jayanth.devarayanadurga]

Yes. 3 pins is enough. Take code from "8051 Microcontroller and Embedded Systems: Using Assembly and C bu Muhammed Ali Mazidi"

Codes can be downloaded from mazidi's website.

**broken link removed**

**broken link removed**

https://saeedsolutions.blogspot.in/2012/05/interfacing-with-uart-of-8051.html