Hi! I am a beginers pIC developments circuits and I work in an GSM alarm whit PIC 16F84A and an telephone sony ericsson T226 or K300a. I test both whit hyperterminal of windows and work ok! receives and sent ok the AT Commands, displays the correct string on the screen, but when I try to probe whit PIC the sony ericsson dont receive the AT commands. I use a subroutine for transmit AT commands to the phone at 9600 bps. How is the correct way to send characters ASCII? ..... MOVLW "A" , CALL XMIT_RS232 , MOVLW "T" , CALL XMIT_RS232 and so on.?? please help me.
thanks in advance
jose
I think that problem could be in the connection of the pic to the phone, someone can tell me a circuit between a pic and a cell phone T226??
thanks in advance
jose
I think that problem could be in the connection of the pic to the phone, someone can tell me a circuit between a pic and a cell phone T226??
Last edited: