Merge pull request #65 from sparkfun/release_candidate

v3.1.7 - improve performance of getTIMTPAsEpoch
sparkfun · Aug 14, 2024 · bb33fa9 · bb33fa9
2 parents 4a73b78 + 729f5cc
commit bb33fa9
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/library.properties b/library.properties
@@ -1,5 +1,5 @@
 name=SparkFun u-blox GNSS v3
-version=3.1.6
+version=3.1.7
 author=SparkFun Electronics <[email protected]>
 maintainer=SparkFun Electronics <sparkfun.com>
 sentence=Library for I2C, Serial and SPI Communication with u-blox GNSS modules<br/><br/>

diff --git a/src/u-blox_GNSS.cpp b/src/u-blox_GNSS.cpp
@@ -18477,9 +18477,9 @@ uint32_t DevUBLOXGNSS::getTIMTPAsEpoch(uint32_t &microsecond, uint16_t maxWait)
   uint32_t us = packetUBXTIMTP->data.towMS % 1000; // Extract the milliseconds
   us *= 1000;                                      // Convert to microseconds
 
-  double subMS = packetUBXTIMTP->data.towSubMS; // Get towSubMS (ms * 2^-32)
-  subMS *= pow(2.0, -32.0);                     // Convert to milliseconds
-  subMS *= 1000;                                // Convert to microseconds
+  double subMS = packetUBXTIMTP->data.towSubMS;         // Get towSubMS (ms * 2^-32)
+  subMS *= 2.3283064365386963e-10; // pow(2.0, -32.0);  // Convert to milliseconds
+  subMS *= 1000;                                        // Convert to microseconds
 
   us += (uint32_t)subMS; // Add subMS