90s2313 with Codevision

[pulse0]

I'm new to microcontroller programming. I'm trying to build a simple program that will blink a LED on pin 12 (PB0).
Here is the rough sketch of my circuit.

Can anyone please give me the full C code for this simple program an then I will build on that and add more components to this circuit.

Also can someone please help me with:
1> how to set pins for output and input?
2> how to retrieve a value from an input pin?
3> how to send data to to output pin?


I would reallllly appreciate any kind of help

sorry about the rough sketch again.

 

[hr_rezaee]

Hi
see codevision help

just type in while loop
DDRB=0x01;
PORTB.0=1;
delay
PORTB.0=0;
delay

port direction DDR+PORT_NAME e.g. DDRB.
retrieve a value PIN+PORT_NAME e.g. PINB.
send data PORT+PORT_NAME e.g. PORTB.

 

[pulse0]

thanks for the reply, greatly appreciate it!!!


I built that circuit and burned that program on the chip it does not seem to work....
Does this chip has an internal oscillator or I will have to use an external crystal oscillator on the XTAL1 and XTAL2 lines?

 

[hr_rezaee]

Hi
see datasheet.
regards

 

[mobile-it]

I think it can be used with or without an external osc

 

[Rooftop]

It should be works without external oscilator, just check the CKOPT and CKSEL and make sure your configuration is right. To look the configuration i use ponyprog, try search in Google for the program.
Best regards