Jeremiah Mattison / Rm3100

Library for interfacing with the RM3100 magnetometer from PNI Sensor Corporation

Dependents:   Hello_RM3100 RM3100

Files at this revision

API Documentation at this revision

Revision 1:8646c63a8dbe, committed 2018-05-24

Comitter:
fwrawx
Date:
Thu May 24 15:23:22 2018 +0000
Parent:
0:b6ab7f28cde2
Commit message:
Change the way I2C writes are performed due to some timing issues in the mbed I2C methods.

Changed in this revision

Rm3100.cpp Show annotated file Show diff for this revision Revisions of this file 
diff -r b6ab7f28cde2 -r 8646c63a8dbe Rm3100.cpp
--- a/Rm3100.cpp	Tue Feb 21 04:55:49 2017 +0000
+++ b/Rm3100.cpp	Thu May 24 15:23:22 2018 +0000
@@ -298,7 +298,9 @@
 
 int Rm3100::Write(uint8_t reg, uint8_t *buffer, uint8_t count)
 {
-    _i2c.write(_addr, (const char *)&reg, sizeof(reg), true);
-    return _i2c.write(_addr, (const char *)buffer, count, false)
+    uint8_t data[count + 1];
+    data[0] = reg;
+    memcpy(&data[1], buffer, count);
+    return _i2c.write(_addr, (const char *)data, count + 1, false)
            ? RM3100_RET_EIO : RM3100_RET_OK;
 }