OSC stops after some time on SLG46826V

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Last post
Sun, 2019-09-15 15:32
#1
Barbish
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Last seen:1 month 1 week ago
加入: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:
PDF iconWDT config.pdf
Device:
DA14580
Device Number:
SLG46826V
Mon, 2019-09-16 10:20
pavloZ
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Last seen:1 year 1 month ago
Staff
加入:2018-01-31 12:50
Hi Barbish, could you please

嗨Barbish,请你分享design file to my emailPavlo.Zakalyk@diasemi.com? This will help much to debug.

Thanks and Regards,

Pavlo

Wed, 2019-10-30 07:34
Barbish
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Last seen:1 month 1 week ago
加入: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