i am making project to switch devices with GSM
can anyone give me detail hoe to interface 8051 and modem i have kit easy8051 microelectronika with rs-232.
how the asm code to be written to intreface gsm modem with AT commands.
Did you expect many people to busy themselves answering the same questions?
How many more forums have you posted to?
www.8052.com/.../169147
By the way - there are no "one" way to connect a GSM to a microcontroller. It depends on controller and GSM module/phone and supply voltages and available interfaces etc.
You either know assembler, or you don't. If you don't, then consider using C instead. Why? Becaues the code will look very similar for different processors, so there will be a huge amount of examples to be found using Google.
Since you've posted the question to multiple forums, it is up to you to monitor all those forums, and respond promptly to all contributions that you receive.
Please check all your other threads, and respond them!