problem interfacing uC and GSM phone ..pls help....

zent_88 · Joined: 18 Sep 2006 Posts: 10

hi..i have some problem when interfacing my gsm phone (sony ericcson T610) with my uC(89C51) the uC was suppose to ask the phone to send a sms to another phone .....i have tested it using hyperterminal ....and it works fine both receive and trasmit ...below are my code:

$regfile = "89C51CC.dat"
$baud = 9600
$crystal = 11059200

Wait 2
Print "AT"

Wait 2
Print Chr(13)

Wait 2
Print "AT+CMGF=0"

Wait 2
Print Chr(13)

Wait 2
Print "AT+CMGS=21"

Wait 2
Print Chr(13)

Wait 2
Print "07910621000010F511000B910621297377F80000AA08E832FB8D2EB3DF" ; Chr(26)

Wait 2

End

is there any problem with my code???for hardware ...i just connect directly pin 3.0(RXD) to trasmit wire of the phone and pin3.1 to receive wire of the phone ...i use a 12Mhz crystal ...pls help ..thx alot .... Crying or Very sad

Funci · Joined: 03 Aug 2005 Posts: 58 Location: CRO

You are saing that you are using 12MHz crystal, but in program there is $crystal=11059200.
Do you understand where is potencially error?