[TPS65921] PWRON long press (8sec) function

Antony Lin

Other Parts Discussed in Thread: TPS65921, TPS65950

In TPS65921, is "pressing PWRON for 8 seconds" a switch-off event or restart event?

According to my measurement, pressing PWRON for 8 sec in TPS65921 will only switch off TPS65921. But in TPS65950, it will restart TPS65850 (NRESPWRON low and high immediately.)

Please help to confirm the above difference is true between TPS65921 & TPS65950.

Thanks!

Antony

over 13 years ago

0 Gandhar Dighe over 13 years ago

TI__Genius 15100 points

Hi Antony,

Your measurements are correct.

Regards,

Gandhar.

0 Antony Lin over 13 years ago in reply to Gandhar Dighe

TI__Genius 13480 points

Hi Gandhar,

Can you confirm what's the default value of STOPON_PWRON in TPS65921? In the document it's default as '1'. But in my test, it seems to be '0'. I'm still looking for a clean environment to confirm this. Do you have firmed answer @ your side?

Thanks,

Antony

0 Gandhar Dighe over 13 years ago in reply to Antony Lin

TI__Genius 15100 points

Hi Antony,

Can you tell which version of the device you have?

Regards,

Gandhar.

0 Antony Lin over 13 years ago in reply to Gandhar Dighe

TI__Genius 13480 points

Hi Gandhar,

It should be ES1.0. Is there any related change in ES2.0?

Antony

0 Gandhar Dighe over 13 years ago in reply to Antony Lin

TI__Genius 15100 points

Hi Antony,

ES2.0 is the later one and has the correct default setting.

Regards,

Gandhar.

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[TPS65921] PWRON long press (8sec) function