u-blox / ublox-cellular-base

Base class for the ublox-xxx-cellular-xxx classes. Cannot be used standalone, only inherited by classes that do properly useful stuff. Or, to put it another way, if you are using any of the ublox-xxx-cellular-xxx classes, you will need this class also.

Dependents:   example-ublox-cellular-interface example-ublox-cellular-driver-gen HelloMQTT example-ublox-cellular-interface_r410M ... more

Files at this revision

API Documentation at this revision

Revision 16:afb3ca2d9915, committed 2018-07-24

Comitter:
wajahat.abbas@u-blox.com
Date:
Tue Jul 24 11:59:48 2018 +0500
Branch:
R4_powerup_fix
Parent:
15:93b157a47b8d
Child:
19:15f31e074d67
Commit message:
Fixed power up issue for SARA-R4

Changed in this revision

UbloxCellularBase.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/UbloxCellularBase.cpp	Thu Jul 12 10:13:45 2018 +0500
+++ b/UbloxCellularBase.cpp	Tue Jul 24 11:59:48 2018 +0500
@@ -556,7 +556,10 @@
     wait_ms(250);
 
     for (int retry_count = 0; !success && (retry_count < 20); retry_count++) {
-        modem_power_up();
+        //In case of SARA-R4, modem takes a while to turn on, constantly toggling the power pin every ~2 secs causes the modem to never power up.
+        if ( (retry_count % 5) == 0) { 
+            modem_power_up();
+        }
         wait_ms(500);
         // Modem tends to spit out noise during power up - don't confuse the parser
         _at->flush();