Diff: I2CEEPROM.cpp

Revision:

0:b8909823d506

diff -r 000000000000 -r b8909823d506 I2CEEPROM.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/I2CEEPROM.cpp	Sun Dec 28 04:02:46 2014 +0000
@@ -0,0 +1,28 @@
+#include "I2CEEPROM.h"
+
+I2CEEPROM::I2CEEPROM(PinName sda, PinName scl, int address, int freq) : i2c(sda,scl) {
+    i2c.frequency(freq);
+    memadd = address;
+}
+
+void I2CEEPROM::write(int bank, unsigned short address, const char *data, int count) {
+    char *bytes = new char[count+3];
+    bytes[0] = 0xa1 | (bank << 3);
+    bytes[1] = address >> 8;
+    bytes[2] = address & 0xff;
+    for(int i = 0; i < count; i++) bytes[i + 3]=data[i];
+    i2c.start();
+    i2c.write(memadd, bytes, count + 3);
+    delete bytes;
+}
+
+void I2CEEPROM::read(int bank, unsigned short address, char *data, int count) {
+    char *info = new char[3];
+    info[0] = 0xa1 | (bank << 3);
+    info[1] = address >> 8;
+    info[2] = address & 0xff;
+    i2c.start();
+    i2c.write(memadd, info, count + 3);
+    for(int i = 0; i < count; i++) data[i]=i2c.read(i < (count - 1));
+    delete info;
+}
\ No newline at end of file