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BusInOut Hello World
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Use
The BusInOut interface is used to create an artificial bus of pins and read from / write to them. Pay special attention to the ordering of the pins in the initialization.
API
API reference.
Import librarymbed
main.cpp@4:910f6ba3c4a3, 2017-06-26 (annotated)
- Committer:
- sarahmarshy
- Date:
- Mon Jun 26 08:55:20 2017 -0500
- Revision:
- 4:910f6ba3c4a3
- Parent:
- 3:68629c6c4970
"Update mbed-os"
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbedAustin | 2:d6010b360bca | 1 | /* mbed Example Program |
mbedAustin | 2:d6010b360bca | 2 | * Copyright (c) 2006-2014 ARM Limited |
mbedAustin | 2:d6010b360bca | 3 | * |
mbedAustin | 2:d6010b360bca | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
mbedAustin | 2:d6010b360bca | 5 | * you may not use this file except in compliance with the License. |
mbedAustin | 2:d6010b360bca | 6 | * You may obtain a copy of the License at |
mbedAustin | 2:d6010b360bca | 7 | * |
mbedAustin | 2:d6010b360bca | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
mbedAustin | 2:d6010b360bca | 9 | * |
mbedAustin | 2:d6010b360bca | 10 | * Unless required by applicable law or agreed to in writing, software |
mbedAustin | 2:d6010b360bca | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
mbedAustin | 2:d6010b360bca | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
mbedAustin | 2:d6010b360bca | 13 | * See the License for the specific language governing permissions and |
mbedAustin | 2:d6010b360bca | 14 | * limitations under the License. |
mbedAustin | 2:d6010b360bca | 15 | */ |
mbedAustin | 2:d6010b360bca | 16 | |
stevep | 1:075e57eccf3a | 17 | #include "mbed.h" |
stevep | 1:075e57eccf3a | 18 | |
mab5449 | 3:68629c6c4970 | 19 | BusInOut pins(D0, D1, D2); |
stevep | 1:075e57eccf3a | 20 | |
stevep | 1:075e57eccf3a | 21 | int main() { |
stevep | 1:075e57eccf3a | 22 | while(1) { |
stevep | 1:075e57eccf3a | 23 | pins.output(); |
stevep | 1:075e57eccf3a | 24 | pins = 0x3; |
stevep | 1:075e57eccf3a | 25 | wait(1); |
stevep | 1:075e57eccf3a | 26 | pins.input(); |
stevep | 1:075e57eccf3a | 27 | wait(1); |
stevep | 1:075e57eccf3a | 28 | if(pins == 0x6) { |
stevep | 1:075e57eccf3a | 29 | printf("Hello!\n"); |
stevep | 1:075e57eccf3a | 30 | } |
stevep | 1:075e57eccf3a | 31 | } |
mbed_official | 0:91a6f3d1b2f0 | 32 | } |