Hi !
I would like to make a PIC 16F877 comunicate with a serial PC port.
I read that some precision oscilator is required for this task : the internal and RC oscilation PIC modes are not suitable.
So, could you recommend me any crystal / ressonator which is cheap an do the trick ? I don't want very fast baud rates ...
Is it simple to interface the oscillator with the PIC ?
Thanks
For a realy cheap crystal, a 3.58Mhz color TV crystal with two 22pF cap.
You can interface (almost) directly the PIC with a PC. Most PC serial interface accepts 0 to 5V signals, no need for negative supply or a MAX232. The PIC output is connected through a 100 ohm resistor to the PC. The PIC input through a 2K2 to 10K resistor and two clipping diodes right at the PIC input, preferably two Schottky like 1N5817 or BAT85.
Ron
"Pedro Duarte" a écrit dans le message de news: snipped-for-privacy@4ax.com...
Thanks, Ron !
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