| ??? 10/11/08 15:03 Read: times |
#158976 - problem sending SMS by modem |
hi ,i am trying to send sms through wavecom modem using AT89S52
when i am sending at commands through hyperterminal it works fine ,when i connect it to mC the modem does not reply . what's intersting is when i tried to check my communication,by connecting modem first to computer and writing at+cmgs=999997676<cr> and then dissconnected modem and connected to uC WHICH SENTS some message and CTRLZ THEN message is sent ...then after sometime i connected it to hyperterminal it sends +cpms=6 ok i have checked the mC RESPONSE ON cvavr hyperterminal they r absolutely correct... so ultimately problem is when i send "AT" from mC to THE modem it does not work |
| Topic | Author | Date |
| problem sending SMS by modem | 01/01/70 00:00 | |
| Do you wait for the prompt? | 01/01/70 00:00 | |
| UNABLE TO RECEIVE | 01/01/70 00:00 | |
Handshake signals? | 01/01/70 00:00 |