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/GpioBus/GpioBusOut.h
- Revision:
- 0:035111d3d631
diff -r 000000000000 -r 035111d3d631 base_classes/CompGpioExp/GpioBus/GpioBusOut.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/base_classes/CompGpioExp/GpioBus/GpioBusOut.h Wed Feb 15 10:07:59 2017 +0000
@@ -0,0 +1,116 @@
+/** GpioBusOut API for GPIO-expander component class
+ *
+ * @author Akifumi (Tedd) OKANO, NXP Semiconductors
+ * @version 0.6
+ * @date 19-Mar-2015
+ *
+ * Released under the Apache 2 license
+ */
+
+#ifndef MBED_GpioBusOut
+#define MBED_GpioBusOut
+
+#include "mbed.h"
+#include "GpioBusInOut.h"
+
+/** GpioBusOut class
+ *
+ * @class GpioBusOut
+ *
+ * "GpioBusOut" class works like "BusOut" class of mbed-SDK.
+ * This class provides pin oriented API, abstracting the GPIO-expander chip.
+ *
+ * Example:
+ * @code
+ * #include "mbed.h"
+ * #include "PCAL9555.h"
+ *
+ * PCAL9555 gpio_exp( p28, p27, 0xE8 ); // SDA, SCL, Slave_address(option)
+ * GpioBusOut mypins( gpio_exp, X0_0, X0_1, X0_2, X0_3 );
+ *
+ * int main() {
+ * while( 1 ) {
+ * for( int i = 0; i < 16; i++ ) {
+ * mypins = i;
+ * wait( 0.25 );
+ * }
+ * }
+ * }
+ * @endcode
+ */
+class GpioBusOut : public GpioBusInOut
+{
+public:
+
+#if DOXYGEN_ONLY
+ /** GPIO-Expander pin names */
+ typedef enum {
+ 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;
+#endif
+
+ /** Create an GpioBusOut, connected to the specified pins
+ *
+ * @param gpiop Instance of GPIO expander device
+ * @param p<n> DigitalInOut pin to connect to bus bit p<n> (GpioPinName)
+ *
+ * @note
+ * It is only required to specify as many pin variables as is required
+ * for the bus; the rest will default to NC (not connected)
+ */
+ GpioBusOut( CompGpioExp &gpiop,
+ GpioPinName p0, GpioPinName p1 = X_NC, GpioPinName p2 = X_NC, GpioPinName p3 = X_NC,
+ GpioPinName p4 = X_NC, GpioPinName p5 = X_NC, GpioPinName p6 = X_NC, GpioPinName p7 = X_NC,
+ GpioPinName p8 = X_NC, GpioPinName p9 = X_NC, GpioPinName p10 = X_NC, GpioPinName p11 = X_NC,
+ GpioPinName p12 = X_NC, GpioPinName p13 = X_NC, GpioPinName p14 = X_NC, GpioPinName p15 = X_NC );
+ GpioBusOut( CompGpioExp &gpiop, GpioPinName pins[ 16 ] );
+
+ /**
+ * Destractor
+ */
+ virtual ~GpioBusOut();
+
+ /** A shorthand for write()
+ */
+ GpioBusOut& operator= ( int rhs );
+ GpioBusOut& operator= ( GpioBusOut& rhs );
+
+private:
+ void init( void );
+}
+;
+
+#endif // MBED_GpioBusOut