sir
i have a usb to db9 cable i can able to load the program in P89V51RD2 but i not able to send proper data from hperterminal to my gsm module and i have check by shorting pin no. 2 and 3 of db9 that time i got perfect data……but when i connect my gsm module to db9 that time it not give proper data like a simbol..and i have make the all the bound rate same but inspite of this i am not gettinf proper data..
pleae sir help me…..
my no.9016347670