how to make arduino read from a text file?

[Anay Joshi]

hello all,
  i want to make arduino read some numbers from a text file periodically. (the text file would be updated periodically by a c program running on the computer)
how to do this?

regards

[Sanket Diwale]

you dont need to write to a text file
you can directly use serial port to send data from your c program to the uC
regards,
Sanket

[Sanket Diwale]

to do that there is a direct api using windows.h. u can create a serial port object, and then write to serial port likeu write to a file

[Mehul Tikekar]

An example using the windows.h API is at http://kartikmohta.com/wiki/Tech/SerialPort

The other method of writing data to file and having Hyperterminal read that file also works.

Mehul

[Siraj Issani]

On 25 Dec 2010 23:28, "Mehul Tikekar" <mehult...@gmail.com> wrote:
>
> An example using the windows.h API is at http://kartikmohta.com/wiki/Tech/SerialPort
>
> The other method of writing data to file and having Hyperterminal read that file also works.

Can hyperterminal read and send text files periodically?

[Mehul Tikekar]

On Sun, Dec 26, 2010 at 12:54 AM, Siraj Issani <siraj....@gmail.com> wrote:

On 25 Dec 2010 23:28, "Mehul Tikekar" <mehult...@gmail.com> wrote:
>
> An example using the windows.h API is at http://kartikmohta.com/wiki/Tech/SerialPort
>
> The other method of writing data to file and having Hyperterminal read that file also works.

Can hyperterminal read and send text files periodically?

Sorry, i had done it the other way round (uC sends data which gets written to a file which is read by C code)
I don't know if what Anay wants will work.

[Chiraag Juvekar]

AFAIK only the windows.h method works. There is a tutorial on stackoverflow or dreamincode.

Google.

Chiraag Juvekar,
www.ee.iitb.ac.in/student/~chiraag

"How happy is the blameless Vestal's lot! The world forgetting, by the world forgot.
Eternal sunshine of the spotless mind! Each pray'r accepted, and each wish resign'd."

[Anay Joshi]

thank you all,
yeah, writing directly on serial stream works, thanks !
on posix systems, there is a very good library for serial programming. it works like a charm :)
http://devlog.bigmonachus.org/2008/08/interfacing-arduino-with-c-and.html

regards