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delene
Joined: 13 Oct 2003 Posts: 32
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connect to a modem |
Posted: Fri Dec 19, 2003 6:42 am |
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Hi
I would like to connect a 18f452 to a modem.
How do I go about this? I have seen that there is lots of ideas when doing a search on modem but unfortunately none of them tell me how to connect the modem to the pic.
Please can some tell me how to connect a normal fax modem to a pic?
Many thanks
Delene |
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wedilo
Joined: 16 Sep 2003 Posts: 71 Location: Moers, Germany
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Posted: Mon Dec 22, 2003 9:14 am |
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Hello Delene,
please have a look to the Maxim MAX232 Chip. This is for connecting the rx/tx lines with TTL level (18F452 pin RC6 and RC7) to v24 standard. Also look at www.kabelfaq.de for pin assignment.
73 Sven |
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Acetoel
Joined: 20 Dec 2003 Posts: 7
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Protocol |
Posted: Sat Dec 27, 2003 12:30 pm |
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Okey. Up to now, I know how to connect to a serial external modem. But what about protocol? How to handle the communication, how to send data using TCP/IP or X(Z)Modem? Thanks very much
Ezequiel |
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wedilo
Joined: 16 Sep 2003 Posts: 71 Location: Moers, Germany
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Posted: Mon Jan 05, 2004 5:26 am |
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Hello,
No problem, please have a look for 'modem commands' at Google and you will find a lot of topics like 'AT commands'.
You can use this commands to control your modem.
Try it out.
All the best for the new year...
73 Sven |
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