Diff: PRAM.h

Revision:

1:2aeba027f61e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PRAM.h	Tue Dec 11 02:12:14 2012 +0000
@@ -0,0 +1,27 @@
+#include "mbed.h"
+
+#define CMD_WREN    0x06    // Write enable
+#define CMD_WRDI    0x04    // Write disable
+#define CMD_RDID    0x9f    // Read identification 
+#define CMD_RDSR    0x05    // Read status register
+#define CMD_WRSR    0x01    // Write status registe
+#define CMD_READ    0x03    // Read data bytes
+#define CMD_FREAD   0x0b    // Read data bytes at higher speed
+#define CMD_PP      0x02    // Page program (legacy program)
+#define CMD_PP_BA   0x22    // Page program (bit-alterable write)
+#define CMD_PP_1S   0xd1    // Page program (On all 1s)
+#define CMD_SE      0xd8    // Sector erase
+
+class PRAM {
+public:
+    PRAM (PinName mosi, PinName miso, PinName sclk, PinName cs);
+    PRAM (SPI &spi, PinName cs);
+    
+    int status ();
+    int write (int addr, char *buf, int len);
+    int read (int addr, char *buf, int len);
+
+private:
+    SPI _spi;
+    DigitalOut _cs;
+};