initial commit

project/realtek_ameba1_va0_example/example_sources/i2c/src/main.c

@@ -0,0 +1,98 @@
+/*
+ *  Routines to access hardware
+ *
+ *  Copyright (c) 2013 Realtek Semiconductor Corp.
+ *
+ *  This module is a confidential and proprietary property of RealTek and
+ *  possession or use of this module requires written permission of RealTek.
+ */
+
+#include "PinNames.h"
+#include "basic_types.h"
+#include "diag.h"
+#include <osdep_api.h>
+
+#include "i2c_api.h"
+#include "pinmap.h"
+#include "ex_api.h"
+
+#define I2C_MASTER_DEVICE
+#define I2C_SLAVE_DEVICE
+
+#define MBED_I2C_MTR_SDA    PB_3
+#define MBED_I2C_MTR_SCL    PB_2
+
+#define MBED_I2C_SLV_SDA    PC_4
+#define MBED_I2C_SLV_SCL    PC_5
+
+#define MBED_I2C_SLAVE_ADDR0    0xAA
+#define MBED_I2C_BUS_CLK        100000  //hz
+
+#define I2C_DATA_LENGTH         125
+char	i2cdatasrc[I2C_DATA_LENGTH];
+char	i2cdatadst[I2C_DATA_LENGTH];
+
+#if defined (__ICCARM__)
+i2c_t   i2cmaster;
+i2c_t   i2cslave;
+#else
+volatile i2c_t   i2cmaster;
+volatile i2c_t   i2cslave;
+#endif
+
+void i2c_callback(void *userdata)
+{
+
+	int     i2clocalcnt;
+	int     result = 0;
+
+	DBG_8195A("show slave received data>>>\n");
+	for (i2clocalcnt = 0; i2clocalcnt < I2C_DATA_LENGTH; i2clocalcnt+=2) {
+		DBG_8195A("i2c data: %02x \t %02x\n",i2cdatadst[i2clocalcnt],i2cdatadst[i2clocalcnt+1]);
+	}
+
+	// verify result
+	result = 1;
+	for (i2clocalcnt = 0; i2clocalcnt < I2C_DATA_LENGTH; i2clocalcnt++) {
+		if (i2cdatasrc[i2clocalcnt] != i2cdatadst[i2clocalcnt]) {
+			result = 0;
+			break;
+		}
+	}
+	DBG_8195A("\r\nResult is %s\r\n", (result) ? "success" : "fail");
+
+}
+
+void main(void)
+{
+    int     i2clocalcnt;
+
+    int     result = 0;
+
+    // prepare for transmission
+    _memset(&i2cdatasrc[0], 0x00, I2C_DATA_LENGTH);
+    _memset(&i2cdatadst[0], 0x00, I2C_DATA_LENGTH);
+
+    for (i2clocalcnt=0; i2clocalcnt < I2C_DATA_LENGTH; i2clocalcnt++){
+        i2cdatasrc[i2clocalcnt] = i2clocalcnt+1;
+    }
+
+#ifdef I2C_SLAVE_DEVICE
+    i2c_init(&i2cslave, MBED_I2C_SLV_SDA ,MBED_I2C_SLV_SCL);
+    i2c_frequency(&i2cslave,MBED_I2C_BUS_CLK);
+    i2c_slave_address(&i2cslave, 0, MBED_I2C_SLAVE_ADDR0, 0xFF);
+    i2c_slave_mode(&i2cslave, 1);
+    i2c_set_user_callback(&i2cslave, I2C_RX_COMPLETE, i2c_callback);
+    
+    DBG_8195A("slave read\n");
+    i2c_slave_read(&i2cslave, &i2cdatadst[0], I2C_DATA_LENGTH);
+#endif
+
+#ifdef I2C_MASTER_DEVICE
+	i2c_init(&i2cmaster, MBED_I2C_MTR_SDA ,MBED_I2C_MTR_SCL);
+    i2c_frequency(&i2cmaster,MBED_I2C_BUS_CLK);
+    DBG_8195A("master write...\n");
+    i2c_write(&i2cmaster, MBED_I2C_SLAVE_ADDR0, &i2cdatasrc[0], I2C_DATA_LENGTH, 1);
+#endif
+    while(1){;}
+}