-/**
- * This is the place where we cheat: since we don't have a clock source
- * running at 62500 Hz, we cast 2 symbols to 1 tick of the 32768
- * clock, which introduces a small (5%) error.
-*/
-#warning "Warning: MAC timing is not standard compliant (the symbol clock is based on the 32768 Hz oscillator)!"
+
+ /**
+ * TelosB lacks a clock that satisfies the precision and accuracy
+ * requirements of the IEEE 802.15.4 standard (62500 Hz, +-40 ppm).
+ * As a workaround, we cast one tick of the 32768 Hz clock to two
+ * IEEE 802.15.4 symbols, which introduces a small (5%) error.
+ * As a consequence the timing of the beacon interval and slotted
+ * CSMA-CA algorithm is not standard-compliant anymore.
+ */
+
+#warning "Warning: MAC timing is not standard compliant!"