dallas.bas File Reference

FB example fetching temperature from all Dallas sensors on the bus. More...

#include "BBB/pruio.bi"
#include "BBB/pruio_pins.bi"
#include "../bas/pruw1.bi"

Include dependency graph for dallas.bas:

Go to the source code of this file.

Variables
VAR	io = NEW PruIo()
	Pointer to libpruio instance.
VAR	w1 = NEW PruW1(io, P9_15, PRUW1_PARPOW + PRUW1_PULLUP)
	Create new libpruw1 instance.
VAR	res = CAST(UBYTE PTR, @.DRam[4])
	pointer to measurement data More...
VAR	crc = .calcCrc(9)
	The checksum (0 = OK).

Detailed Description

FB example fetching temperature from all Dallas sensors on the bus.

This example demonstrates how to

• initialize the libpruw1 library,
• define a GPIO header pin as one wire bus,
• handle error codes on initialization,
• scan the bus for all dallas sensor devices,
• perform 11 temperature convert broardcasts,
• read the measurement results from the sensor scratchpads, and
• print them on the screen.

Check the output for enabled monitoring feature as well, see section Monitoring Feature for details.

Since

0.0

Definition in file dallas.bas.

Variable Documentation

res

VAR res = CAST(UBYTE PTR, @.DRam[4])

pointer to measurement data

check presense pulse (0 = OK).

Definition at line 51 of file dallas.bas.