ChibiOS Free Embedded RTOS

hello to all

I have a question concerning the stm32f303-discovery
I would like to set up a motion sensor (PIR) with it
I would like to know how I can do and how do I enable pin input

thanks

Hi,

In the file board.h there are the default settings of the I/O pins, by default all the unused pins are programmed as input with pull-up.

You may change the programming of a pin using palPadSetMode(), see the documentation of the PAL driver.

Giovanni

sorry but I do not understand
board.h file to activate the input pin must remove the pullu-up?

and the documentation about pal drivers where can i take?

alca wrote:board.h file to activate the input pin must remove the pullu-up?

Do you need the pull-up?

alca wrote:and the documentation about pal drivers where can i take?

In the documentation section, I will do the clicking for you, here: http://chibios.sourceforge.net/html/group___p_a_l.html

To generic questions I can only give generic answers, please be more specific.

Giovanni

I apologize for the lack of clarity are not very practical about this tab

I would like to enable the pin an input to a motion sensor

I would like some sample code to configure this sensor and pin input

thanks

Hi,

I don't know the sensor, what kind of connection does it have? if it is just an input pin, then any unused pin is already an enabled input.

Giovanni

The sensor is :

Level Output detected: High (3.3V)
Level Output undetected Low (0 V)

thanks

Giovanni wrote:any unused pin is already an enabled input.

done, just connect your sensor and read the pin.

Giovanni

I must use the funcion pwm o adc to configure the sensor?

thanks