Diff: DS1820.h

Revision:

1:91aa74f0cb0e

Parent:

0:245af9360f0d

--- a/DS1820.h	Tue Feb 28 07:42:07 2012 +0000
+++ b/DS1820.h	Sun Jul 02 15:10:13 2017 +0000
@@ -99,13 +99,17 @@
     DS1820(PinName data_pin);
 
     /** ROM is a copy of the internal DS1820's ROM
-      * It's created during the search_ROM() or search_alarm() commands
+      * It is created during the search_ROM() or search_alarm() commands
       *
       * ROM[0] is the Dallas Family Code
       * ROM[1] thru ROM[6] is the 48-bit unique serial number
       * ROM[7] is the device CRC
       */
     char ROM[8];
+    #define FAMILY_CODE ROM[0]
+    #define FAMILY_CODE_DS1820 0x10
+    #define FAMILY_CODE_DS18S20 0x10
+    #define FAMILY_CODE_DS18B20 0x28
     
     /** RAM is a copy of the internal DS1820's RAM
       * It's updated during the read_RAM() command
@@ -189,11 +193,19 @@
       */
     bool RAM_checksum_error();
 
-    /** This funtion returns the values stored in the temperature
+    /** This function returns the values stored in the temperature
       * alarm registers. 
       *
       * @returns a 16 bit integer of TH (upper byte) and TL (lower byte).
       */
+    bool set_configuration_bits(unsigned int resolution);
+    
+    /** This function sets the temperature resolution for the DS18B20
+      * in the configuration register.
+      *
+      * @param a number between 9 and 12 to specify the resolution
+      * @returns true if successful
+      */ 
     int read_scratchpad();
     
     /** This function will store the passed data into the DS1820's RAM.
@@ -201,7 +213,7 @@
       * during cycling the power off and on.
       *
       * @param a 16 bit integer of TH (upper byte) and TL (lower byte).
-      */
+      */ 
     void write_scratchpad(int data);
     
     /** This function will transfer the TH and TL registers from the
@@ -211,13 +223,13 @@
       *
       * @param allows the fnction to apply to a specific device or
       * to all devices on the 1-Wire bus.
-      */
+      */ 
     void store_scratchpad(devices device=this_device);
 
     /** This function will copy the stored values from the EEPROM
       * into the DS1820's RAM locations for TH and TL.
       *
-      * @param allows the fnction to apply to a specific device or
+      * @param allows the function to apply to a specific device or
       * to all devices on the 1-Wire bus.
       */
     int recall_scratchpad(devices device=this_device);
@@ -249,4 +261,4 @@
 };
 
 
-#endif
+#endif
\ No newline at end of file