Buzzer interrupt using rs232

farizah · Joined: 26 Dec 2009 Posts: 5

Hello, I'm new here and need some help. For example: play the happy birthday on buzzer, hold if there is incoming data sending from rs232, do another .c, then play again the sound. thanks for your help. (I'm using ccs v4.084)

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

You can use getc() to wait for a character to arrive on the RS-232
serial port. Then it will get the character.

This post shows how to do it. In a while(1) loop, getc() is called at
the top of the loop. When it gets a character, it uses a switch-case
statement to detect which character was received. It then takes action
based on the character. In this example, it does SPI actions.
You could substitute code to call the generate_tone() function.
http://www.ccsinfo.com/forum/viewtopic.php?t=39145&start=1

If you have any questions, add them to this thread. Do not post on
the SPI thread.