Diff: LTC2487/LTC2487.cpp

Revision:

20:cdeed4dad690

Parent:

16:82d941b1ef21

--- a/LTC2487/LTC2487.cpp	Thu Jun 28 21:30:44 2018 +0000
+++ b/LTC2487/LTC2487.cpp	Mon Jul 16 03:53:59 2018 +0000
@@ -6,22 +6,22 @@
 namespace {
     const uint8_t I2C_WRITE  = 0x00;
     const uint8_t I2C_READ   = 0x01;
-    
+
     //Channel addresses (first two bits are fixed)
     //0b10  EN  SGL ODD A2  A1  A0
     //0b10  1   1   0   0   0   0   ch0 --> 0xb0
     //0b10  1   1   1   0   0   0   ch1 --> 0xb8
     //0b10  1   1   0   0   0   1   ch2 --> 0xb1
     //0b10  1   1   1   0   0   1   ch3 --> 0xb9
-    
+
 
     //Config Section
     //      EN2 IM  FA  FB  SPD GS2 GS1 GS0
     //      1   0   0   0   0   0   1   0       //Initial
     //      1   0   0   0   1   0   1   1       //New Attempt with same gain (8x)
     //      1   0   0   0   1   0   0   0       //New Attempt with unity gain (1x)
-    
-    
+
+
     const uint8_t CHNL_0     = 0xb0;
     const uint8_t CHNL_1     = 0xb8;
     const uint8_t CHNL_2     = 0xb1;
@@ -37,12 +37,12 @@
     addrI2C = address;
 }
 
-float LTC2487::writePort(int chnl){
+int LTC2487::writePort(int chnl){
     char ADC_channel[1];
     char ADC_config[1];
     ADC_config[0] = 0b10001000;//0x82; //0b10000010
     char cmd[2];
-        
+
     //select channel to read
     switch (chnl){
         case 0:
@@ -57,24 +57,24 @@
         case 3:
             ADC_channel[0] = CHNL_3;
             break;
-    } 
-    
+    }
+
     cmd[0] = ADC_channel[0];
     cmd[1] = ADC_config[0];
-    
-    i2c.write((addrI2C<<1)|(I2C_WRITE), cmd, 2);
+
+    return i2c.write((addrI2C<<1)|(I2C_WRITE), cmd, 2);
 }
 
 float LTC2487::read(){
     char ADC_data_rx[3];
-    
+
     //Read data from selected channel --> 24bits --> 23bit=SIGN 22bit=MSB 21-7bits=DATA 5-0bits=JUNK
     i2c.read((addrI2C<<1)|(I2C_READ), ADC_data_rx, 3);
     //Stitch together the bytes into a 24bit value
     unsigned long data = (ADC_data_rx[0] << 16) | (ADC_data_rx[1] << 8)| ADC_data_rx[2];
     //Delete SIGN bit and MSB bit and remove 6 JUNK bits
-    unsigned long ADC_Result = (data&0x3fffff)>>6;  
-        
+    unsigned long ADC_Result = (data&0x3fffff)>>6;
+
     return float(float(ADC_Result));
 
 }