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hi.. i am also doing project which requires interface between mobile(modem) and microcontroller..
i have checked the presence of modem in my mobile..through hyperterminal in pc..it gave response to some of the at commands i have sent...
but when i wrote the program am not getting response from the mobile...for the at commands sent from microcontroller serially...
the lookuptable i have used for sending at commands are..
toselmem:db "at+cpms=",22h,"sm",22h,0dh;
i am using assembly language..the command above is used to select memory...and 22h is eqvt of double quotes--ascii..0dh is for CR..sm for sim memory..
toreadmem:db "at+cmgr=1",0dh
my project is displaying the msg from the inbox of mobile on lcd display...
can anyone help me please...
thank you..
please reply soon..i am in a great need..