Erik -
Library for reading temperature from DS1820, DS18B20 and DS1822
Dependents: heatmap BLE_Temperature BLE_Temperature_Exercise F334andDS18B20 ... more
Fork of
DS1820
by 
David Pairman
HelloWorld: http://mbed.org/users/Sissors/code/DS1820_HelloWorld/
Library should currently work on all mbed targets, let me know if there is an issue. First however make sure you have latest version of mbed library and this library.
Revision 4:29264b0a2c9f, committed 2013-08-07
- Comitter:
- pairmand
- Date:
- Wed Aug 07 11:02:10 2013 +0000
- Parent:
- 3:8f2b7f4940b5
- Child:
- 5:2cd4928e8147
- Commit message:
- Added check of CRC to end of search_ROM
Changed in this revision
| DS1820.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/DS1820.cpp Thu Aug 01 10:18:17 2013 +0000
+++ b/DS1820.cpp Wed Aug 07 11:02:10 2013 +0000
@@ -151,7 +151,10 @@
if (ROM_bit_index != 0xFF) {
for(byte_counter=0;byte_counter<8;byte_counter++)
ROM[byte_counter] = DS1820_search_ROM[byte_counter];
- return_value = true;
+ if (ROM_checksum_error()) // Check the CRC
+ DS1820_last_descrepancy = 0; // Abort any more search
+ else
+ return_value = true;
}
}
if (DS1820_last_descrepancy == 0)
DS1820