Diff: main.cpp

Revision:

0:133799070ae9

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Jul 15 10:16:17 2016 +0000
@@ -0,0 +1,40 @@
+#include"mbed.h"
+
+#define ADXL345_I2C_READ        0xA7
+#define ADXL345_I2C_WRITE       0xA6
+#define ADXL345_I2C_ADDRESS     0x53
+#define ADXL345_DEVID_REG       0x00
+#define ADXL345_DATAX0_REG      0x32
+#define ADXL345_POWER_CTL_REG   0x2D
+#define MeasurementMode         0x08
+
+I2C adxl345(PA_10,PA_09);
+Serial uart0(PA_13,PA_14);
+//DigitalOut led(LED1);
+int16_t xyz[3] = {0, 0, 0};
+
+int main() {
+    char config[2];
+    char data[6];
+    config[0] = ADXL345_DEVID_REG;
+    char output;
+    uart0.baud(9600);
+    adxl345.write( ADXL345_I2C_WRITE , config, 1);
+    adxl345.read( ADXL345_I2C_READ , &output, 1);
+    uart0.printf("ADXL345 device id is 0x%x.\r\n",output);
+    config[0] = ADXL345_POWER_CTL_REG;
+    config[1] = MeasurementMode;
+    adxl345.write( ADXL345_I2C_WRITE, config, 2); //set power
+
+    config[0]=ADXL345_DATAX0_REG;
+    while (1)
+    {
+        adxl345.write( ADXL345_I2C_WRITE, config, 1);
+        adxl345.read( ADXL345_I2C_READ , data, 6);
+        xyz[0]=(int)data[1]<<8|(int)data[0];
+        xyz[1]=(int)data[3]<<8|(int)data[2];
+        xyz[2]=(int)data[5]<<8|(int)data[4];
+        uart0.printf("%6i, %6i, %6i\n", xyz[0], xyz[1], xyz[2]);
+        wait(0.1);
+    }
+}
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