Diff: Hotboards_eeprom.h

Revision:

0:38fad00cc45b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Hotboards_eeprom.h	Fri Jan 29 00:46:08 2016 +0000
@@ -0,0 +1,56 @@
+/*
+  Hotboards_eeprom.h - Driver to control serial (spi) eeprom memories, The memories are
+  compatibles amount the manufactures Microchip, Atmel and ST, and of course you can control
+  Hotboards eeprom board (http://hotboards.org)
+  Created by Diego Perez, January 16, 2016.
+  Released into the public domain.
+  
+  Density:   1Kbit   | 2Kbit   | 4Kbit   | 8Kbit   | 16Kbit  | 32Kbit  | 64Kbit  | 128Kbit | 256Kbit | 512Kbit | 1 Mbit
+  Part:      25xx010 | 25xx020 | 25xx040 | 25xx080 | 25xx160 | 25xx320 | 25xx640 | 25xx128 | 25xx256 | 25xx512 | 25xx1024
+  Page/Byte: 16      | 16      | 16      | 16(32)  | 16(32)  | 32      | 32      | 64      | 64      | 128     | 256
+  Addr/Bits: 7       | 8       | 9       | 16      | 16      | 16      | 16      | 16      | 16      | 16 
+*/
+
+#ifndef Hotboards_eeprom_h
+#define Hotboards_eeprom_h
+
+#include "mbed.h"
+
+//EEPROM size in kilobits. EEPROM part numbers are usually designated in k-bits.
+typedef enum
+{
+    HT_EEPROM25xx_1Kb = 0,
+    HT_EEPROM25xx_2Kb,
+    HT_EEPROM25xx_4Kb,
+    HT_EEPROM25xx_8Kb,
+    HT_EEPROM25xx_16Kb,
+    HT_EEPROM25xx_32Kb,
+    HT_EEPROM25xx_64Kb,
+    HT_EEPROM25xx_128Kb,
+    HT_EEPROM25xx_256Kb,
+    HT_EEPROM25xx_512Kb,
+    HT_EEPROM25xx_1Mb   
+}_eEEPROM;
+
+class Hotboards_eeprom
+{
+    public :
+        Hotboards_eeprom( SPI &spi, PinName cs, uint8_t type );
+        void init( void );
+        void write( uint32_t address, uint8_t data );
+        void write( uint32_t address, uint8_t *data, uint16_t size );
+        uint8_t read( uint32_t address );
+        void read( uint32_t address, uint8_t *data, uint16_t size );
+    
+    protected :
+        void sendAddress( uint8_t cmd, uint32_t address );
+        void writePage( uint32_t address, uint8_t *data, uint16_t size );
+    
+        SPI _spi;    
+        DigitalOut _cs_pin;
+        uint8_t _type;
+        uint16_t _page;
+        uint32_t _density;
+};
+
+#endif