opentimers should be initialized before openserial.
void openstack_init(void) {
//===== drivers
+ opentimers_init();
openserial_init();
//===== stack
@@ -53,7 +54,7 @@ void openstack_init(void) {
idmanager_init(); // call first since initializes EUI64 and isDAGroot
openqueue_init();
openrandom_init();
- opentimers_init();
+
//-- 02a-TSCH
// adaptive_sync_init();
ieee154e_init();
