ST STEVAL-WBC86TX - Figure 56. FHOP Settings; Figure 57. FHOP Example

Figure 56. FHOP settings
The figure below shows an example of frequency hopping with the parameters defined above.
Figure 57. FHOP example
1. Receiver is placed on the transmitter; transmitter regulates based on the CEP value; the Rx is removed
shortly after.
2. CE timeout occurred, as there was no communication from the receiver. The transmitter performed four
frequency hops (-2048 Hz step).
3. CE timeout occurred for the fifth time; the Tx ended the power transfer.
The same would apply in case of ASK demodulation error. If the transmitter is not able to decode the set number
of CE packets in the row, power transfer is terminated. However, if a CE packet is decoded successfully, the
transmitter resumes normal operation.
UM3161
Frequency hopping (fhop)
UM3161 - Rev 1
page 43/78