Event Meaning Consequence
FSK_PKT_ERROR
Unable to send FSK packet from Tx to
Rx. Possible reason might be the Rx
messaging is too fast and Tx does not
have sufficient time to respond.
Stop power transfer, return to
ping phase.
CHIP_OVERTEMP_DETECTED
STWBC2 chip temperature over
ChipHighTemp threshold.
Stop power transfer. Do not ping
until the temperature is under
the ChipLowTemp threshold.
AFE_INT_ERROR Internal error.
Stop power transfer, return to
ping phase.
ADC_CAL_DONE ADC calibration is done. Write calibration to NVM.
RESTART_FOR_CAL Host called for recalibration.
Perform calibration. Save the
calibration data to NVM.
ENTER_RING_V_LIMITER
Ring voltage over the threshold in
RingVLimiter.
Tx ignores positive CE.
LEAVE_RING_V_LIMITER
Ring voltage returned under the
threshold.
Tx regulates again according to
CE from Rx.
EPT_REPING
The Rx asked to stop power transfer by
EPT/rep packet. The power transfer shall
be restarted after the delay specified by
SRQ/rep packet.
The default is maximum (12.6 s)
Stop power transfer. Ping again
after the specified delay.
ENTER_POWER_TRANSFER_AT_STSC
The Tx successfully switched to STSC
mode. Performed on Rx request.
The STSC commands are
accepted from now on until the
power transfer is terminated.
RESTART_FOR_OVER_VOLTAGE Tx detected Rx overvoltage occurrence.
Stop the power transfer. If
repeated 3 times, stop pinging
until the object (Rx) is removed
from the Tx coil.
PING_TIMEOUT
A valid response to the digital ping was
not received in time. Possible reasons:
Rx did not send any packet, Rx packet
send was delayed due to late Rx startup
(for example because of low ping energy)
or Rx packet was not decoded by Tx.
Repeat the analog ping, then
continue as usual.
T_FIRST_TIMEOUT
Packet not received in time during the
ping phase.
Repeat the analog ping, then
continue as usual.
NEXT_PACKET_TIMEOUT
Packet not received in time during the
config phase.
Repeat the analog ping, then
continue as usual.
PACKET_TIMEOUT
In the negotiation phase, the packet
header is received in time, but the rest of
the message is corrupted.
Repeat the analog ping, then
continue as usual.
NEGOTIATION_TIMEOUT
Packet not received in time during the
negotiation phase.
Repeat the analog ping, then
continue as usual.
CONTROL_ERROR_TIMEOUT CE packet not received in time.
Repeat the analog ping, then
continue as usual.
RECEIVED_POWER_TIMEOUT RP packet not received in time.
Repeat the analog ping, then
continue as usual.
CALIBRATION_PHASE_TOO_LONG Calibration was not done in time.
Repeat the analog ping, then
continue as usual.
UM3286
Graphical user interface (GUI)
UM3286 - Rev 1
page 32/84
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