Diff: SI1143.cpp

Revision:

1:28beeb2f209b

Parent:

0:18ebb7348150

Child:

2:21381f11a5af

--- a/SI1143.cpp	Thu Oct 17 12:53:08 2013 +0000
+++ b/SI1143.cpp	Thu Oct 17 20:52:40 2013 +0000
@@ -4,73 +4,23 @@
 {
     wait_ms(30);
     i2c_ = new I2C(sda, scl);
-    //3.4MHz, as specified by the datasheet.
-    i2c_->frequency(3400000);
+    //3.4MHz, as specified by the datasheet. (DO NOT USE)
+    //i2c_->frequency(3400000);
     
     command(RESET);
     wait_ms(30);
-    //bias1=0;
-    //bias2=0;
-    //bias3=0;
-    //PS1=0;
-    //PS2=0;
-    //PS3=0;
     
     write_reg(HW_KEY,HW_KEY_VAL0); // Setting up LED Power to full
-    //write_reg(PS_LED21,0xFF);
     write_reg(PS_LED21,0xAA);
-    //write_reg(PS_LED3, 0x0F);
     write_reg(PS_LED3,0x0A);
-  //param_set(CHLIST,0b00010111);
-    //param_set(CHLIST,0x17);
-    //write_reg(PARAM_WR, 0x17);
     write_reg(PARAM_WR, ALS_IR_TASK + ALS_VIS_TASK + PS1_TASK + PS2_TASK + PS3_TASK);
     
-    //write_reg(COMMAND, 0xA0|CHLIST);
     command(PARAM_SET + (CHLIST & 0x1F));
     
     write_reg(INT_CFG,0);
     write_reg(IRQ_ENABLE,0);
     write_reg(IRQ_MODE1,0);
     write_reg(IRQ_MODE2,0);
-  
-  //void write_reg(byte address, byte val) {  // Write a resigter
-  //Wire.beginTransmission(IR_ADDRESS); 
-  //Wire.write(address);      
-  //Wire.write(val);       
-  //Wire.endTransmission();     
-//}
-  
-    //char parameter = read_reg(PARAM_RD,1);
- // Serial.print("CHLIST = ");
- // Serial.println(parameter,BIN);
-  //delay(1000);
-    //wait(2);
-    /*
-    for (int i=0; i<20; i++)
-    {
-          //write_reg(COMMAND,0b00000101);
-        write_reg(COMMAND,0x05);
-          //delay(50);
-        //wait(0.05);
-          
-          //char LowB = read_reg(PS1_DATA0,1);
-          //char HighB = read_reg(PS1_DATA1,1);
-        LowB = read_reg(PS1_DATA0,1);
-        HighB = read_reg(PS1_DATA1,1);
-          
-        bias1 = bias1 + (((HighB * 255) + LowB) / 20);
-          
-        LowB = read_reg(PS2_DATA0,1);
-        HighB = read_reg(PS2_DATA1,1);
-          
-        bias2 = bias2 + (((HighB * 255) + LowB) / 20);
-          
-        LowB = read_reg(PS3_DATA0,1);
-        HighB = read_reg(PS3_DATA1,1);
-          
-        bias3 = bias3 + (((HighB * 255) + LowB) / 20);
-    }*/
 }
 
 void SI1143::command(char cmd)
@@ -82,86 +32,48 @@
     {
         write_reg(COMMAND,NOP);
         val = read_reg(RESPONSE,1);
-        printf("%d\r\n",val);
     }
     do{
         write_reg(COMMAND,cmd);
         if(cmd==RESET) break;
         val = read_reg(RESPONSE,1);
-        //printf("%d\r\n",val);
     }while(val==0);
 }
 
-char SI1143::read_reg(/*unsigned*/ char address, int num_data) // Read a Register
+char SI1143::read_reg(/*unsigned*/ char address, int num_data) // Read a register
 {
-    //
-  //unsigned char data;
-    //char cmd[2]={address,num_data};
-    //int data;
-    
-    //i2c_->start();
-    //data = i2c_->read(IR_ADDRESS,cmd,2);
-    //wait(0.05);
-    //i2c_->stop();
-    
-    //return data;
-    
     char tx[1];
     char rx[1];
     
-    i2c_->start();
+    //i2c_->start();
     tx[0] = address;
     i2c_->write((IR_ADDRESS << 1) & 0xFE, tx, num_data);
     wait_ms(1);
-    i2c_->stop();
+    //i2c_->stop();
     
-    i2c_->start();
+    //i2c_->start();
     i2c_->read((IR_ADDRESS << 1) | 0x01, rx, num_data);
     wait_ms(1);
-    i2c_->stop();
+    //i2c_->stop();
     
     return rx[0];
-
-  //Wire.beginTransmission(IR_ADDRESS);
-  //Wire.write(address);
-  //Wire.endTransmission();
-
-  //Wire.requestFrom(IR_ADDRESS, num_data);
-  
-  //while(Wire.available() < num_data);
-  
-  //return Wire.read();
 }
 
-void SI1143::write_reg(char address, char num_data)
-{  // Write a resigter
-    //char cmd[2]={address,val};
-    
-    //i2c_->start();
-    //i2c_->write(IR_ADDRESS,cmd,1);
-    //wait(0.05);
-    //i2c_->stop();
-    
+void SI1143::write_reg(char address, char num_data) // Write a resigter
+{  
     char tx[2];
 
     tx[0] = address;
     tx[1] = num_data;
-    //tx[2] = data;
     
-    i2c_->start();
+    //i2c_->start();
     i2c_->write((IR_ADDRESS << 1) & 0xFE, tx, 2);
     wait_ms(1);
-    i2c_->stop();
-    
-  //Wire.beginTransmission(IR_ADDRESS); 
-  //Wire.write(address);      
-  //Wire.write(val);       
-  //Wire.endTransmission();     
+    //i2c_->stop();   
 }
 
 void SI1143::bias()
 {
-    //command(PSALS_FORCE);
     sample(0);
     bias1 = PS1;
     bias2 = PS2;
@@ -172,15 +84,12 @@
 {
     //int data[5];
     command(PSALS_FORCE);
-    //write_reg(COMMAND,0x05); // Get a reading
-    //delay(5);
-    //wait(0.5);
     
-    LowB = read_reg(ALS_VIS_DATA0,1); // Read the data for the first LED
+    LowB = read_reg(ALS_VIS_DATA0,1); // Read the data for ambient light
     HighB = read_reg(ALS_VIS_DATA1,1);
     VIS = (HighB * 256) + LowB;
     
-    LowB = read_reg(ALS_IR_DATA0,1); // Read the data for the first LED
+    LowB = read_reg(ALS_IR_DATA0,1); // Read the data for infrared light
     HighB = read_reg(ALS_IR_DATA1,1);
     IR = (HighB * 256) + LowB;
     
@@ -188,11 +97,11 @@
     HighB = read_reg(PS1_DATA1,1);
     PS1 = (HighB * 256) + LowB;
     
-    LowB = read_reg(PS2_DATA0,1); // Read the data for the first LED
+    LowB = read_reg(PS2_DATA0,1); // Read the data for the second LED
     HighB = read_reg(PS2_DATA1,1);
     PS2 = (HighB * 256) + LowB;
     
-    LowB = read_reg(PS3_DATA0,1); // Read the data for the first LED
+    LowB = read_reg(PS3_DATA0,1); // Read the data for the third LED
     HighB = read_reg(PS3_DATA1,1);
     PS3 = (HighB * 256) + LowB;
     
@@ -228,42 +137,3 @@
     
     //return PS1;
 }
-/*
-int SI1143::read1()
-{
-    write_reg(COMMAND,0x05); // Get a reading
-    //delay(5);
-    //wait(0.5);
-    
-    LowB = read_reg(PS1_DATA0,1); // Read the data for the first LED
-    HighB = read_reg(PS1_DATA1,1);
-    PS1 = ((HighB * 255) + LowB) - bias1;
-    
-    return PS1;
-}
-        
-int SI1143::read2()
-{
-    write_reg(COMMAND,0x05); // Get a reading
-    //delay(5);
-    //wait(0.5);
-    
-    LowB = read_reg(PS2_DATA0,1);  // Read the data for the second LED
-    HighB = read_reg(PS2_DATA1,1);
-    PS2 = (HighB * 255) + LowB - bias2;
-    
-    return PS2;
-}
-        
-int SI1143::read3()
-{
-    write_reg(COMMAND,0x05); // Get a reading
-    //delay(5);
-    //wait(0.5);
-    
-    LowB = read_reg(PS3_DATA0,1);  // Read the data for the third LED
-    HighB = read_reg(PS3_DATA1,1);
-    PS3 = (HighB * 255) + LowB - bias3;
-    
-    return PS3;
-}*/
\ No newline at end of file