Revision 0:662ab6a5aa97, committed 2014-07-01

Comitter:

okano

Date:

Tue Jul 01 00:10:04 2014 +0000

Child:

1:47f2cf4c6619

Commit message:

first library test

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PCA9547.cpp	Tue Jul 01 00:10:04 2014 +0000
@@ -0,0 +1,19 @@
+#include "PCA9547.h"
+
+PCA9547::PCA9547( PinName sda, PinName scl, char i2c_address ) : i2c( sda, scl ), _i2c_addr( i2c_address )
+{
+    //  do nothing.
+    //  leave it in default state.
+}
+
+PCA9547::~PCA9547()
+{
+
+}
+
+void PCA9547::select( char channel )
+{
+    char    data    = 0x08 | channel;
+
+    i2c.write( _i2c_addr, &data, 1);
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PCA9547.h	Tue Jul 01 00:10:04 2014 +0000
@@ -0,0 +1,20 @@
+#ifndef MBED_PCA9547_H
+#define MBED_PCA9547_H
+
+#include "mbed.h"
+
+class PCA9547
+{
+public:
+    PCA9547( PinName sda, PinName scl, char i2c_address = 0xE0 );
+
+    ~PCA9547();
+
+    void select( char channel );
+
+private:
+    I2C     i2c;
+    char    _i2c_addr;
+};
+
+#endif  //  MBED_PCA9547_H
\ No newline at end of file