Adaptation for PCA9548 Nxp I2C switch
Fork of PCA9547 by
PCA9547.cpp@2:c3459a955c8c, 2014-07-01 (annotated)
- Committer:
- okano
- Date:
- Tue Jul 01 00:28:17 2014 +0000
- Revision:
- 2:c3459a955c8c
- Parent:
- 1:47f2cf4c6619
- Child:
- 3:7e884a7805b1
disable function added
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
okano | 1:47f2cf4c6619 | 1 | /* Copyright (c) 2012 cstyles, MIT License |
okano | 1:47f2cf4c6619 | 2 | * |
okano | 1:47f2cf4c6619 | 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
okano | 1:47f2cf4c6619 | 4 | * and associated documentation files (the "Software"), to deal in the Software without restriction, |
okano | 1:47f2cf4c6619 | 5 | * including without limitation the rights to use, copy, modify, merge, publish, distribute, |
okano | 1:47f2cf4c6619 | 6 | * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is |
okano | 1:47f2cf4c6619 | 7 | * furnished to do so, subject to the following conditions: |
okano | 1:47f2cf4c6619 | 8 | * |
okano | 1:47f2cf4c6619 | 9 | * The above copyright notice and this permission notice shall be included in all copies or |
okano | 1:47f2cf4c6619 | 10 | * substantial portions of the Software. |
okano | 1:47f2cf4c6619 | 11 | * |
okano | 1:47f2cf4c6619 | 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
okano | 1:47f2cf4c6619 | 13 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
okano | 1:47f2cf4c6619 | 14 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
okano | 1:47f2cf4c6619 | 15 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
okano | 1:47f2cf4c6619 | 16 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
okano | 1:47f2cf4c6619 | 17 | */ |
okano | 0:662ab6a5aa97 | 18 | #include "PCA9547.h" |
okano | 0:662ab6a5aa97 | 19 | |
okano | 0:662ab6a5aa97 | 20 | PCA9547::PCA9547( PinName sda, PinName scl, char i2c_address ) : i2c( sda, scl ), _i2c_addr( i2c_address ) |
okano | 0:662ab6a5aa97 | 21 | { |
okano | 0:662ab6a5aa97 | 22 | // do nothing. |
okano | 0:662ab6a5aa97 | 23 | // leave it in default state. |
okano | 0:662ab6a5aa97 | 24 | } |
okano | 0:662ab6a5aa97 | 25 | |
okano | 0:662ab6a5aa97 | 26 | PCA9547::~PCA9547() |
okano | 0:662ab6a5aa97 | 27 | { |
okano | 0:662ab6a5aa97 | 28 | |
okano | 0:662ab6a5aa97 | 29 | } |
okano | 0:662ab6a5aa97 | 30 | |
okano | 0:662ab6a5aa97 | 31 | void PCA9547::select( char channel ) |
okano | 0:662ab6a5aa97 | 32 | { |
okano | 0:662ab6a5aa97 | 33 | char data = 0x08 | channel; |
okano | 0:662ab6a5aa97 | 34 | |
okano | 2:c3459a955c8c | 35 | i2c.write( _i2c_addr, &data, 1 ); |
okano | 0:662ab6a5aa97 | 36 | } |
okano | 2:c3459a955c8c | 37 | |
okano | 2:c3459a955c8c | 38 | void PCA9547::disable( void ) |
okano | 2:c3459a955c8c | 39 | { |
okano | 2:c3459a955c8c | 40 | char data = 0x00; |
okano | 2:c3459a955c8c | 41 | |
okano | 2:c3459a955c8c | 42 | i2c.write( _i2c_addr, &data, 1 ); |
okano | 2:c3459a955c8c | 43 | } |