Product specifications

R01AN0168ED0101 Rev. 01.01 45
Application Note
Chapter 7 Performing Zero Point Detection
7.3 ZPD Operation
The ZPD operation for a channel can be individually started, if the following
prerequisites are fulfilled:
1.
Channel Management is activated for this physical channel (GEN, CENn).
2. The virtual channel for the physical channel n is selected (CCTn).
3. The ZPD table is defined for the used virtual channel (CTLn).
4. The analogue hardware is initialized and linked to ISM (GZE, GZP, GZL).
5. The ZPD operation mode is selected for the physical channel (CZPn).
The ZPD operation for a channel can be stopped by software, either bei
clearing
CZPn, or by disabling the channel (CENn, GEN).
The ZPD operation for a channel ends automatically, if during a measurement
cycle (
ZMTn set), no ZPD interrupt IRQZPD was generated (if enabled at all),
and if the flag
ZIPn is not set.
After the ZPD operation has ended automatically, the channel remains
disabled (
CENn cleared), until reactivated by software.