Andriy Makukha
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.
Diff: base_classes/CompGpioExp/CompGpioExp.h
- Revision:
- 0:035111d3d631
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/base_classes/CompGpioExp/CompGpioExp.h Wed Feb 15 10:07:59 2017 +0000
@@ -0,0 +1,76 @@
+/** GPIO expander abstraction class
+ *
+ * No instance can be made from this class
+ *
+ * @class CompGpioExp
+ * @author Akifumi (Tedd) OKANO, NXP Semiconductors
+ * @version 0.6
+ * @date 19-Mar-2015
+ *
+ * Released under the Apache 2 license
+ */
+
+#ifndef MBED_CompGpioExp
+#define MBED_CompGpioExp
+
+#include "mbed.h"
+
+typedef enum {
+ // GPIO Expander pin names
+ X0_0, /**< P0_0 pin */
+ X0_1, /**< P0_1 pin */
+ X0_2, /**< P0_2 pin */
+ X0_3, /**< P0_3 pin */
+ X0_4, /**< P0_4 pin */
+ X0_5, /**< P0_5 pin */
+ X0_6, /**< P0_6 pin */
+ X0_7, /**< P0_7 pin */
+ X1_0, /**< P1_0 pin (for 16-bit GPIO device only) */
+ X1_1, /**< P1_1 pin (for 16-bit GPIO device only) */
+ X1_2, /**< P1_2 pin (for 16-bit GPIO device only) */
+ X1_3, /**< P1_3 pin (for 16-bit GPIO device only) */
+ X1_4, /**< P1_4 pin (for 16-bit GPIO device only) */
+ X1_5, /**< P1_5 pin (for 16-bit GPIO device only) */
+ X1_6, /**< P1_6 pin (for 16-bit GPIO device only) */
+ X1_7, /**< P1_7 pin (for 16-bit GPIO device only) */
+ X0 = X0_0, /**< P0_0 pin */
+ X1 = X0_1, /**< P0_1 pin */
+ X2 = X0_2, /**< P0_2 pin */
+ X3 = X0_3, /**< P0_3 pin */
+ X4 = X0_4, /**< P0_4 pin */
+ X5 = X0_5, /**< P0_5 pin */
+ X6 = X0_6, /**< P0_6 pin */
+ X7 = X0_7, /**< P0_7 pin */
+ X8 = X1_0, /**< P1_0 pin (for 16-bit GPIO device only) */
+ X9 = X1_1, /**< P1_1 pin (for 16-bit GPIO device only) */
+ X10 = X1_2, /**< P1_2 pin (for 16-bit GPIO device only) */
+ X11 = X1_3, /**< P1_3 pin (for 16-bit GPIO device only) */
+ X12 = X1_4, /**< P1_4 pin (for 16-bit GPIO device only) */
+ X13 = X1_5, /**< P1_5 pin (for 16-bit GPIO device only) */
+ X14 = X1_6, /**< P1_6 pin (for 16-bit GPIO device only) */
+ X15 = X1_7, /**< P1_7 pin (for 16-bit GPIO device only) */
+ X_NC = ~0x0L /**< for when the pin is left no-connection */
+} GpioPinName;
+
+/** Abstract class for GPIO expander devices
+ *
+ * No instance can be made from this class
+ */
+class CompGpioExp
+{
+public:
+ CompGpioExp();
+ virtual ~CompGpioExp();
+
+ virtual void write( int pin, int value ) = 0;
+ virtual int read( int pin ) = 0;
+ virtual void configure( int pin, int value ) = 0;
+ virtual int read( void ) = 0;
+ virtual void write_with_mask( int bitpattern, int mask_bits ) = 0;
+ virtual void configure_with_mask( int bitpattern, int mask_bits ) = 0;
+}
+;
+
+#endif // MBED_CompGpioExp
+
+