Revision 0:9937013783de, committed 2017-07-29

Comitter:

Info

Date:

Sat Jul 29 13:09:33 2017 +0000

Commit message:

EEPROM libraly for mille-feuille device boards.

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/EEPROM24LC01.cpp	Sat Jul 29 13:09:33 2017 +0000
@@ -0,0 +1,58 @@
+/*
+ ***************************************************************************
+ * File Name    : EEPROM24LC01.cpp
+ *
+ * Revision     : 1.0
+ * Notes        :
+ * Target Board : mbed LPC
+ *
+ * Revision History:
+ ***************************************************************************
+ */
+#include "EEPROM24LC01.h"
+#include "mbed.h"
+
+EEPROM24LC01::EEPROM24LC01(I2C *i2c, const int address):
+    _i2c_address(address<<1), _i2c(i2c)
+{
+}
+
+int EEPROM24LC01::byte8_write(char *data)
+{
+    int res;
+    char buf[9];
+    int i = 0;
+
+    buf[0] = 0;        // Address
+
+    for(i=0;i<8;++i){
+        buf[i+1] = data[i];
+    }
+/*    buf[1] = data[0];
+    buf[2] = data[1];
+    buf[3] = data[2];
+    buf[4] = data[3];
+    buf[5] = data[4];
+    buf[6] = data[5];
+    buf[7] = data[6];
+    buf[8] = data[7];
+*/
+    res = _i2c->write(_i2c_address, buf, sizeof(buf), false);
+
+    wait_ms(5);         // 5mS
+
+    return res;
+}
+
+
+int EEPROM24LC01::readAll( char *data, int size )
+{
+    int res;
+    char buf[1];
+
+    buf[0] = 0;        // Read Address High byte set
+    res = _i2c->write(_i2c_address, buf, sizeof(buf), true);
+    res = _i2c->read(_i2c_address, (char *)data, size, false);
+
+    return res;
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/EEPROM24LC01.h	Sat Jul 29 13:09:33 2017 +0000
@@ -0,0 +1,31 @@
+/*
+ ***************************************************************************
+ * File Name    : EEPROM24LC01.h
+ *
+ * Revision     : 1.0
+ * Notes        :
+ * Target Board : mbed LPC
+ *
+ * Revision History:
+ ***************************************************************************
+ */
+
+#ifndef _EEPROM24LC01_H_
+#define _EEPROM24LC01_H_
+
+#include "mbed.h"
+#define     I2C_ADDR_EEPROM24LC01        0x50
+
+class EEPROM24LC01
+{
+private:
+    int _i2c_address;
+    I2C *_i2c;
+
+public:
+    EEPROM24LC01(I2C *i2c, const int address=I2C_ADDR_EEPROM24LC01 );
+    int byte8_write( char *data );
+    int readAll( char *data, int size );
+};
+
+#endif /* _EEPROM24LC01_H_ */
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