Tool/software:
Hi,
We are trying to determine which diagnostic mechanism could give information about permament sensor fault and how we should react on them.
I am particulary interested in following safety mechanisms:
- 7.3.7.4 Internal LDO Under Voltage Check -
1) In register there is separate category for Vcc UV and LDO Under Voltage Check. Could LDO under voltage check also fail when Vcc will be too low?
2) Or LDO Under Voltage Check will be set only when Vcc is correct but inside sensor there is something damaged and LDO voltage will be too low?
- 7.3.7.1 Memory CRC Check
3) This safety mechanism not relate to user programmable reigsters, but to some factory written sensor calibrations/data?
4) PowerOnReset could help in this case? Or sensor flash is damaged and nothing can be done?)
- 7.3.7.11 Analog Front-End (AFE) Check
- 7.3.7.14 ADC Check
- 7.3.7.13 Hall Offset Check
- 7.3.7.12 Hall Resistance and Switch Matrix Check
- 7.3.7.8 Oscillator Integrity Check (assuming test is correctly done, from MCU side everything is working without problems)
Questions common for all above safety mechanism
5. Is threre any recommended recovery routine when fault will be signaled by sensor? (I mean can we do something to fix sensor?)
For example when I will get fault on Digital Core Power-on Reset Check than it will be quite obvious that I need to write whole configuration to sensor.
6. Is this fault permament ?
7. Can this diagnostic mechanism show fault, and later fix itself somehow and show pass on same sample?
