assembly coding for 8051

[manasusman]

hello
how can we do coding for sending AT commands from the micro controller to the mobile attached serially with it.
is it like we first send 'A' serially and then 'T' to it through the 'SBUF' register.
please please help me.
:|:|:???:

 

[srizbf]

send the command characters serially , character by character ending with linefeed character.

yes you have to send it through SBUF of 8051.
the baudrate should programmed based on other ends requirement.

 

[FvM]

The initial 'A' and 'T' have to be send with an intermediate delay to allow the autobaud to work - if the mobile aupports variable baud rates at all.

Generally, you would want to have string print routine in your code to send AT commands.

 

[manasusman]

Sir FvM please explain a little bit.
A little bit delay and autobaud?
"Generally, you would want to have string print routine in your code to send AT commands"
and this also!
please please :|:|