Diff: OneWire_Methods.cpp

Revision:

2:29a5b859318a

Parent:

1:85b1605ed4e0

--- a/OneWire_Methods.cpp	Wed Feb 24 12:33:26 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,175 +0,0 @@
-#include "OneWire_Methods.h"
-#include "mbed.h"
-
-//Peripherals and typedefs
-extern DigitalInOut   one_wire_pin;
-
-unsigned char OneWire_ReadByte(void)
-{
-    unsigned char result=0;
-
-    for (int i = 0; i < 8; i++){    
-        result >>= 1;           // shift the result to get it ready for the next bit
-        // if result is one, then set MS bit
-        if (OneWire_ReadBit()){result |= 0x80;}    
-    }
-    return result;
-}
-
-void OneWire_WriteByte(unsigned char byte_to_write)
-{  
-    for (int i = 0; i<8; i++)     // Loop to write each bit in the byte, LS-bit first
-    {
-        OneWire_WriteBit(byte_to_write & 0x01);        
-        byte_to_write >>= 1;      // shift the data byte for the next bit
-    }
-}
-
-bool OneWire_ReadBit(void)
-{  
-    bool result;
-    one_wire_pin.output();
-    one_wire_pin = 0;
-    OneWire_Delay('A');
-    one_wire_pin.input();
-    one_wire_pin.mode(PullUp);
-    OneWire_Delay('E');
-    result = one_wire_pin.read();
-    OneWire_Delay('F');
-    return result;
-}
-
-void OneWire_WriteBit (bool bit_to_write){
-    
-    if (bit_to_write == 1)
-    {
-        // Write '1' bit
-        one_wire_pin.output();
-        one_wire_pin = 0;
-        OneWire_Delay('A');
-        one_wire_pin.input();
-        one_wire_pin.mode(PullUp);
-        OneWire_Delay('B');
-    }
-    else
-    {
-        one_wire_pin.output();
-        one_wire_pin = 0;
-        OneWire_Delay('C');
-        one_wire_pin.input();
-        OneWire_Delay('D');
-    }
-}
-bool OneWire_Reset (void)
-{
-    //Checks whether there is a device connected, returns true or false
-    //Debugging console output can be used if it is defined
-    bool result = false;
-    one_wire_pin.output();
-    one_wire_pin.write(0); //Pull the line high
-    OneWire_Delay('H');
-    one_wire_pin.input();
-    one_wire_pin.mode(PullUp);
-    OneWire_Delay('I');
-    if(one_wire_pin.read() == 0){ result = true;}
-    OneWire_Delay('J'); 
-    #ifdef Debugging
-        pc.printf("\n\rResult from reset: %d",result);
-    #endif
-    return result;
-}
-
-void OneWire_TestDelays(void)
-{
-    //Cycles the output pin through all the delays so you
-    //can see whether they are all the right timings.
-    one_wire_pin.output();
-    for(int i=0;i<6;i++){
-        one_wire_pin = !one_wire_pin; //toggle the pin 6 times to signal start of test at 100us
-        wait_us(100);   
-    }
-    OneWire_Delay('A');
-    one_wire_pin = !one_wire_pin;
-    OneWire_Delay('A');
-    one_wire_pin = !one_wire_pin;
-    
-    OneWire_Delay('B');
-    one_wire_pin = !one_wire_pin;
-    OneWire_Delay('B');
-    one_wire_pin = !one_wire_pin;
-    
-    OneWire_Delay('C');
-    one_wire_pin = !one_wire_pin;
-    OneWire_Delay('C');
-    one_wire_pin = !one_wire_pin;
-    
-    OneWire_Delay('D');
-    one_wire_pin = !one_wire_pin;
-    OneWire_Delay('D');
-    one_wire_pin = !one_wire_pin;
-    
-    OneWire_Delay('E');
-    one_wire_pin = !one_wire_pin;
-    OneWire_Delay('E');
-    one_wire_pin = !one_wire_pin;
-    
-    OneWire_Delay('F');
-    one_wire_pin = !one_wire_pin;
-    OneWire_Delay('F');
-    one_wire_pin = !one_wire_pin;
-    
-    OneWire_Delay('G');
-    one_wire_pin = !one_wire_pin;
-    OneWire_Delay('G');
-    one_wire_pin = !one_wire_pin;
-    
-    OneWire_Delay('H');
-    one_wire_pin = !one_wire_pin;
-    OneWire_Delay('H');
-    one_wire_pin = !one_wire_pin;
-    
-        
-    OneWire_Delay('I');
-    one_wire_pin = !one_wire_pin;
-    OneWire_Delay('I');
-    one_wire_pin = !one_wire_pin;
-    
-    OneWire_Delay('J');
-    one_wire_pin = !one_wire_pin;
-    OneWire_Delay('J');
-    one_wire_pin = !one_wire_pin;
-    
-}
-
-//Functions
-void OneWire_Delay(char letter)
-{
-    //Recommended delays from Maxim (standard speed not overdrive)
-    //https://www.maximintegrated.com/en/app-notes/index.mvp/id/126
-    
-    //Letter  Speed       Recommended (µs)
-    //A       Standard    6
-    //B       Standard    64
-    //C       Standard    60
-    //D       Standard    10
-    //E       Standard    9
-    //F       Standard    55
-    //G       Standard    0
-    //H       Standard    480
-    //I       Standard    70
-    //J       Standard    410
-    switch(letter)
-    {
-        case 'A': wait_us(1); break;
-        case 'B': wait_us(64); break;
-        case 'C': wait_us(60); break;
-        case 'D': wait_us(10); break;
-        case 'E': wait_us(5); break;
-        case 'F': wait_us(55); break;
-        case 'G': wait_us(0); break;
-        case 'H': wait_us(480); break;
-        case 'I': wait_us(70); break;
-        case 'J': wait_us(410); break;
-        default: break;
-    }
-}