BusOut

Mbed OS 2 and Mbed OS 5

This is the handbook for Mbed OS 2. If you’re working with Mbed OS 5, please see the Mbed OS 5 documentation. For the latest BusOut API, please see BusOut.

The BusOut interface is used to create a number of DigitalOut pins that can be written as one value.

Hello World!

Import program

00001 /* mbed Example Program
00002  * Copyright (c) 2006-2014 ARM Limited
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 #include "mbed.h"
00017  
00018 BusOut myleds(LED1, LED2, LED3, LED4);
00019  
00020 int main() {
00021     while(1) {
00022         for(int i=0; i<16; i++) {
00023             myleds = i;
00024             wait(0.25);
00025         }
00026     }
00027 }

API

API summary

Import librarymbed

No documentation found.

Interface

The BusOut Interface can be used on any pin with a blue label, and also with the on-board LEDs (LED1-LED4)

The BusOut Interface can be used to set the state of the output pin, and also read back the current output state. Set the BusOut to zero to turn it off, or 1 to turn it on.

/media/uploads/chris/pinout-thumbnails.jpg
See the Pinout page for more details