Initial Arduino IDE based on Processing.

build/shared/lib/avrlib/i2ceeprom.c

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+/*! \file i2ceeprom.c \brief Interface for standard I2C EEPROM memories. */
+//*****************************************************************************
+//
+// File Name	: 'i2ceeprom.c'
+// Title		: Interface for standard I2C EEPROM memories
+// Author		: Pascal Stang - Copyright (C) 2003
+// Created		: 2003.04.23
+// Revised		: 2003.04.23
+// Version		: 0.1
+// Target MCU	: Atmel AVR series
+// Editor Tabs	: 4
+//
+// This code is distributed under the GNU Public License
+//		which can be found at http://www.gnu.org/licenses/gpl.txt
+//
+//*****************************************************************************
+
+#include <avr/io.h>
+#include <avr/signal.h>
+#include <avr/interrupt.h>
+
+#include "i2c.h"
+#include "i2ceeprom.h"
+
+// Standard I2C bit rates are:
+// 100KHz for slow speed
+// 400KHz for high speed
+
+// functions
+void i2ceepromInit(void)
+{
+	// although there is no code here
+	// don't forget to initialize the I2C interface itself
+}
+
+u08 i2ceepromReadByte(u08 i2cAddr, u32 memAddr)
+{
+	u08 packet[2];
+	// prepare address
+	packet[0] = (memAddr>>8);
+	packet[1] = (memAddr&0x00FF);
+	// send memory address we wish to access to the memory chip
+	i2cMasterSendNI(i2cAddr, 2, packet);
+	// retrieve the data at this memory address
+	i2cMasterReceiveNI(i2cAddr, 1, packet);
+	// return data
+	return packet[0];
+}
+
+void i2ceepromWriteByte(u08 i2cAddr, u32 memAddr, u08 data)
+{
+	u08 packet[3];
+	// prepare address + data
+	packet[0] = (memAddr>>8);
+	packet[1] = (memAddr&0x00FF);
+	packet[2] = data;
+	// send memory address we wish to access to the memory chip
+	// along with the data we wish to write
+	i2cMasterSendNI(i2cAddr, 3, packet);
+}