Diff: DAC7311.h

Revision:

0:ca49770e05b5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DAC7311.h	Fri Oct 12 18:31:18 2012 +0000
@@ -0,0 +1,42 @@
+#ifndef __DAC7311_H__
+#define __DAC7311_H__
+
+#include "mbed.h"
+
+#define DAC7311_SPI_MODE    1
+
+// Bit masks and shifts
+#define PD0                 (1<<14)
+#define PD1                 (1<<15)
+#define conf_data_12(x)     ((unsigned short)(x << 2) & 0x3FFC)
+
+// Operation modes
+#define DAC7311_OP_NORMAL           0    
+#define DAC7311_OP_SHUTDOWN_1K      (PD0)
+#define DAC7311_OP_SHUTDOWN_100K    (PD1)
+#define DAC7311_OP_SHUTDOWN_HIZ     ( PD0 | PD1 )
+
+union UI16toC_t 
+{
+    char bytes[sizeof(unsigned short)];
+    unsigned short value;
+};
+
+class DAC7311
+{
+    SPI *spi;
+    DigitalOut *sync;
+    unsigned short value;
+    unsigned short mode;
+    
+    public:
+        
+        DAC7311 (SPI *spi, DigitalOut *sync) : spi(spi), sync(sync), value(0), mode(DAC7311_OP_NORMAL) 
+        { *sync = 1; }
+        
+        void set_mode (unsigned short);
+        void set_value (unsigned short);
+};
+
+
+#endif /* __DAC7311_H__ */
\ No newline at end of file