Elan quickcal software#

Record the frequency setting when an CalAck is received from MM1. If frequency_settingrx_11 is calibrated, SCuM sends one CalProbe frame per frequency setting to MM16, ranging from rx_ch25 to rx_ch25 + “1 coarse“ settings. If frequency_setting_rx11 is NOT calibrated, SCuM sends one CalProbe frame per frequency setting to MM1, ranging from 23.0.0 to 23.31.31. The following figure shows how the QuickCal box works: The general behaviors of OpenMote after synchronized is explained in #General Info When an OpenMote received a CalBeacon, according to the SeqNum inside the frame, it is able to calculate where the slot boundary is, hence complete the synchronization stage. MM1 follows the rule above to send CalBeacon frame on slot 0. The Acknowledgement contains the frequency_offset of the incoming frame.Īll OpenMotes listen on channel 11 all the time and wait for CalBeacon frame to synchronize, except MM1 since it is the timer master. During all other slots except slot 0, MM3 listens on channel 13,Īfter synchronized, when an OpenMote received a frame from SCuM, it sends back an Acknowledgement (CalAck) on the same channel it was listening before. MM3 can only send beacons on slot 2 on channel 13. During all other slots except slot 0, MM2 listens on channel 12, MM2 can only send beacons on slot 1 on channel 12.

During all other slots except slot 0, MM1 listens on channel 11, MM1 can only send beacons on slot 0 on channel 11. The communication rules on each slot are:īefore being synchronized, each OpenMote only listens on channel 11 and wait for CalBeacon sent by MM1.Īfter being synchronized, each OpenMote only sends multiple CalBeacon frames on specific slot at specific channel. Slotframe contains 16 slots and each slot is split into multiple sub-slots for transmitting one frame and receiving an Acknowledgement.

Elan quickcal software#

The software running on OpenMote is simple time-slotted protocol, no stack running on top. MM2-MM16 are the slave nodes, acting as time slaves MM1 is the master node, acting as time master Each OpenMote is labeled as MM1, MM2, …, MM16 where: The result of this algorithm is two freq_setting tables:įrequency_setting_rx which contains the frequency settings of 16 channels for RXįrequency_setting_tx which contains the frequency settings of 16 channels for TXĬalBox is consist of 16 OpenMotes. We want that to quickly as soon as possible. The goal is to determine SCuM’s frequency setting for each channel, both for RX and TX. A SCuM chip that needs to calibrate, within range of the CalBox