Andriy Makukha / PCAL6416

The PCAL6416A is a low-voltage 16-bit general purpose I/O (GPIO) expander with interrupt. This component library is compatible to basic operation as GPIO expanders: PCAL6416A, PCAL9555, PCA9555, PCA9535, PCA9539, PCAL9554, PCA9554 and PCA9538. On addition to this, this library is including mbed-SDK-style APIs. APIs that similar to DigitaiInOut, DigitalOut, DigitalIn, BusInOUt, BusOut and BusIn are available.

This is a copy of the PCA9555 library by Akifumi "Tedd" OKANO, which is compatible with PCAL6416A chip.

base_classes/CompGpioExp/CompGpioExp.h@0:035111d3d631, 2017-02-15 (annotated)

Committer:
andriym
Date:
Wed Feb 15 10:07:59 2017 +0000
Revision:
0:035111d3d631
A change of name for the PCAL955x library to make it searchable for people needing PCAL6416A library.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
andriym 0:035111d3d631 1 /** GPIO expander abstraction class
andriym 0:035111d3d631 2 *
andriym 0:035111d3d631 3 * No instance can be made from this class
andriym 0:035111d3d631 4 *
andriym 0:035111d3d631 5 * @class CompGpioExp
andriym 0:035111d3d631 6 * @author Akifumi (Tedd) OKANO, NXP Semiconductors
andriym 0:035111d3d631 7 * @version 0.6
andriym 0:035111d3d631 8 * @date 19-Mar-2015
andriym 0:035111d3d631 9 *
andriym 0:035111d3d631 10 * Released under the Apache 2 license
andriym 0:035111d3d631 11 */
andriym 0:035111d3d631 12
andriym 0:035111d3d631 13 #ifndef MBED_CompGpioExp
andriym 0:035111d3d631 14 #define MBED_CompGpioExp
andriym 0:035111d3d631 15
andriym 0:035111d3d631 16 #include "mbed.h"
andriym 0:035111d3d631 17
andriym 0:035111d3d631 18 typedef enum {
andriym 0:035111d3d631 19 // GPIO Expander pin names
andriym 0:035111d3d631 20 X0_0, /**< P0_0 pin */
andriym 0:035111d3d631 21 X0_1, /**< P0_1 pin */
andriym 0:035111d3d631 22 X0_2, /**< P0_2 pin */
andriym 0:035111d3d631 23 X0_3, /**< P0_3 pin */
andriym 0:035111d3d631 24 X0_4, /**< P0_4 pin */
andriym 0:035111d3d631 25 X0_5, /**< P0_5 pin */
andriym 0:035111d3d631 26 X0_6, /**< P0_6 pin */
andriym 0:035111d3d631 27 X0_7, /**< P0_7 pin */
andriym 0:035111d3d631 28 X1_0, /**< P1_0 pin (for 16-bit GPIO device only) */
andriym 0:035111d3d631 29 X1_1, /**< P1_1 pin (for 16-bit GPIO device only) */
andriym 0:035111d3d631 30 X1_2, /**< P1_2 pin (for 16-bit GPIO device only) */
andriym 0:035111d3d631 31 X1_3, /**< P1_3 pin (for 16-bit GPIO device only) */
andriym 0:035111d3d631 32 X1_4, /**< P1_4 pin (for 16-bit GPIO device only) */
andriym 0:035111d3d631 33 X1_5, /**< P1_5 pin (for 16-bit GPIO device only) */
andriym 0:035111d3d631 34 X1_6, /**< P1_6 pin (for 16-bit GPIO device only) */
andriym 0:035111d3d631 35 X1_7, /**< P1_7 pin (for 16-bit GPIO device only) */
andriym 0:035111d3d631 36 X0 = X0_0, /**< P0_0 pin */
andriym 0:035111d3d631 37 X1 = X0_1, /**< P0_1 pin */
andriym 0:035111d3d631 38 X2 = X0_2, /**< P0_2 pin */
andriym 0:035111d3d631 39 X3 = X0_3, /**< P0_3 pin */
andriym 0:035111d3d631 40 X4 = X0_4, /**< P0_4 pin */
andriym 0:035111d3d631 41 X5 = X0_5, /**< P0_5 pin */
andriym 0:035111d3d631 42 X6 = X0_6, /**< P0_6 pin */
andriym 0:035111d3d631 43 X7 = X0_7, /**< P0_7 pin */
andriym 0:035111d3d631 44 X8 = X1_0, /**< P1_0 pin (for 16-bit GPIO device only) */
andriym 0:035111d3d631 45 X9 = X1_1, /**< P1_1 pin (for 16-bit GPIO device only) */
andriym 0:035111d3d631 46 X10 = X1_2, /**< P1_2 pin (for 16-bit GPIO device only) */
andriym 0:035111d3d631 47 X11 = X1_3, /**< P1_3 pin (for 16-bit GPIO device only) */
andriym 0:035111d3d631 48 X12 = X1_4, /**< P1_4 pin (for 16-bit GPIO device only) */
andriym 0:035111d3d631 49 X13 = X1_5, /**< P1_5 pin (for 16-bit GPIO device only) */
andriym 0:035111d3d631 50 X14 = X1_6, /**< P1_6 pin (for 16-bit GPIO device only) */
andriym 0:035111d3d631 51 X15 = X1_7, /**< P1_7 pin (for 16-bit GPIO device only) */
andriym 0:035111d3d631 52 X_NC = ~0x0L /**< for when the pin is left no-connection */
andriym 0:035111d3d631 53 } GpioPinName;
andriym 0:035111d3d631 54
andriym 0:035111d3d631 55 /** Abstract class for GPIO expander devices
andriym 0:035111d3d631 56 *
andriym 0:035111d3d631 57 * No instance can be made from this class
andriym 0:035111d3d631 58 */
andriym 0:035111d3d631 59 class CompGpioExp
andriym 0:035111d3d631 60 {
andriym 0:035111d3d631 61 public:
andriym 0:035111d3d631 62 CompGpioExp();
andriym 0:035111d3d631 63 virtual ~CompGpioExp();
andriym 0:035111d3d631 64
andriym 0:035111d3d631 65 virtual void write( int pin, int value ) = 0;
andriym 0:035111d3d631 66 virtual int read( int pin ) = 0;
andriym 0:035111d3d631 67 virtual void configure( int pin, int value ) = 0;
andriym 0:035111d3d631 68 virtual int read( void ) = 0;
andriym 0:035111d3d631 69 virtual void write_with_mask( int bitpattern, int mask_bits ) = 0;
andriym 0:035111d3d631 70 virtual void configure_with_mask( int bitpattern, int mask_bits ) = 0;
andriym 0:035111d3d631 71 }
andriym 0:035111d3d631 72 ;
andriym 0:035111d3d631 73
andriym 0:035111d3d631 74 #endif // MBED_CompGpioExp
andriym 0:035111d3d631 75
andriym 0:035111d3d631 76