Sensors Control Modifications Sequence:
- Write changes to registers.
- Wait for 900ns to 1us (long enough for sensor period of slowest 1.15 MHz sensor clock plus some extra).
- New changes can be written to registers.
Sensors TRIM Pins Modifications
Sequence:
- Clear WKUP_VTM_TMPSENS_CTRL_j[6] CLRZ to disable
the sensor, so that it has the ENA input low.
- Wait for 900ns to 1us for the sensor clock to
toggle and register the updated ENA pin .
- Update the WKUP_VTM_TMPSENS_TRIM_j
registers.
- Wait for 900ns to 1us for the sensor clock to
toggle and register to updated TRIM pins while ENA
is low.
- Now the sensor can be enabled normally.
Reset Sensors Sequence:
- Set the WKUP_VTM_TMPSENS_CTRL_j[6] CLRZ bit to
enable the sensor (so that it has the ENA input high).
- Wait for 900ns to 1us for the sensor clock to toggle and register the updated ENA pin.
- Clear WKUP_VTM_TMPSENS_CTRL_j[6] CLRZ to disable
and reset the sensor (as it requires an ENA transition from 1 to 0 to reset
initially) .
- Wait for 900ns to 1us for the sensor clock to toggle and register the updated ENA pin.
- Now the sensor can be configured and enabled normally.