INTELLIGENT WORK FORUMS
FOR COMPUTER PROFESSIONALS

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Jobs

Siemens TC35 GSM modem - problem.

Siemens TC35 GSM modem - problem.

(OP)
Hi people! I have some trouble with TC35. It was extremely easy to connect two PC-s via these modems vith Hyper Terminal (AT commands, data call) but when I connected it to an Atmega128 controller via MAX232, it refuses to connect (modem must auto-answer after one call, so does with HT), as it seems 3-wire connection (GND, RXD, TXD) isn't enough, I also tried to give an rising edge on DTR, RTS.. but no effect. So if anyone knows how to control another pins, please let me know coz my project is going to be out-of-time and my boss will be veeeery angry of this. Pleeeeeaaaseee heeeeeeelllpppp!

 thanks......

and sorry for my baaaad English.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members!

Resources

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close