OSC stops after some time on SLG46826V

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Barbish
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Last seen: 1 year 6 months ago
Joined: 2015-02-24 09:06
OSC stops after some time on SLG46826V

Hi,

I found a wird situation (maybe using OSC0 wrongly). After some amount of time (~1h) the WDT driven by OSC0 stops working - as there is some timeout.

 

Conditions:

- WD_IN input signal is externally dissabled [pin13]

- 12V_MONITOR_IN signal is always presented [pin18]

 

Thanks for your help.

Attachment: 
Device: 
Device Number: 
SLG46826V
pavloZ
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Last seen: 2 years 6 months ago
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Joined: 2018-01-31 12:50
Hi Barbish, could you please

Hi Barbish, could you please share the design file to my email Pavlo.Zakalyk@diasemi.com? This will help much to debug.

Thanks and Regards,

Pavlo

Barbish
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Last seen: 1 year 6 months ago
Joined: 2015-02-24 09:06
''

''

There is a mistake in the design.

POR is connected to PWR Down of the OSC0 while “Power down” control pin option is chosen.

There are two solutions:

-remove POR from PWR Down pin;

-change control pin option from “Power down” to “Force ON”

It depends on your own but I’ll recommend first to keep auto power on mode of the OSC0.

''

Thanks PavloZ

 

Barbish