Tim Marvin / LIS331_lib

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Diff: LIS331.cpp

Revision:
4:c3df518a938e
Parent:
3:147d95b7a525
Child:
5:3443fb9646bd
diff -r 147d95b7a525 -r c3df518a938e LIS331.cpp
--- a/LIS331.cpp	Wed Nov 17 18:34:25 2010 +0000
+++ b/LIS331.cpp	Fri Jan 07 16:31:35 2011 +0000
@@ -4,12 +4,12 @@
  *
  * @section DESCRIPTION
  *
- * LIS331 triple axis, digital interface, accelerometer.
+ * LIS331DLH triple axis, digital interface, accelerometer.
  * Based off Aaron Berk's ITG3200 Gyro Library 
  *
  * Datasheet:
  *
- * http://www.st.com/stonline/products/literature/ds/13951.pdf
+ * http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00213470.pdf
  */
 
 /**
@@ -34,14 +34,6 @@
     tx[1] = 0x3F;
     i2c_.write((LIS331_I2C_ADDRESS << 1) & 0xFE, tx, 2);
     
-    
-    // Set Big endian bit
-    //tx2[0] = CTRL_REG_4;
-    //i2c_.write((LIS331_I2C_ADDRESS << 1) & 0xFE, tx2, 1);   // Request control reg 4
-    //i2c_.read((LIS331_I2C_ADDRESS << 1) | 0x01, rx, 1);        //Read control reg 4
-    //tx2[1] = rx[0] | 1<<7;                                         // Set bit 7
-    //i2c_.write((LIS331_I2C_ADDRESS << 1) & 0xFE, tx2, 2);
-    
 }
 
 char LIS331::getWhoAmI(void){
@@ -101,6 +93,37 @@
 }
 
 
+void LIS331:setFullScaleRange8g(void){  // Does not preserve rest of CTRL_REG_4!
+
+    char tx[2];
+    tx[0] = CTRL_REG_4;
+    tx[1] = 0x30;
+        
+    i2c_.write((LIS331_I2C_ADDRESS << 1) & 0xFE, &tx, 2);
+    
+}
+
+void LIS331:setFullScaleRange4g(void){  // Does not preserve rest of CTRL_REG_4!
+
+    char tx[2];
+    tx[0] = CTRL_REG_4;
+    tx[1] = 0x10;
+        
+    i2c_.write((LIS331_I2C_ADDRESS << 1) & 0xFE, &tx, 2);
+    
+}
+    
+
+void LIS331:setFullScaleRange2g(void){  // Does not preserve rest of CTRL_REG_4!
+
+    char tx[2];
+    tx[0] = CTRL_REG_4;
+    tx[1] = 0x00;
+        
+    i2c_.write((LIS331_I2C_ADDRESS << 1) & 0xFE, &tx, 2);
+    
+}
+
 
 char LIS331::getAccelStatus(void){