[SOLVED] help on serial programming with 8051. i got black box character.. :)

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hi again.. the code of this project is written for at89s51 and I would like to use at89s52.... I checked the data sheet of at89s52 and they are almost the same.. if that the case if i use at89s52 do i need to edit the code according to the new device or no need at all?
 

HI ckshivaram,

WHY I cant send sms using At commands if I use the international format of number?

+639395016788 -- I cannot send sms with this format

09395016788 -- I can send with this format using at commands


both are the same when sending using your mobile
 

there is no difference.. check the array size you have declared to store the number... when you use + and number it is 13 characters and when you use 0 it is 11 characters...

check it once...........
 

i check it in the LCD before I wrote a code for sending sms..

all the numbers are displayed.
 

Hi ckshivaram

just an update of my work.. it's now working in the actual hardware.. thanks for helping me..




**broken link removed**
 

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