TPS65987D: TPS65987D Hreset issue

Hugo Liu

Part Number: TPS65987D
Other Parts Discussed in Thread: TPS65987, TPS65982, TPS65988

Hi Sir,

Our customer used the TPS65987D, But have some issue.
If they are hardware reset(Hreset), then Oscilloscope see the Hreset change to High after to Low, But TPS65987 no read from SPI flase again.
They used TPS65982 before, no this issue.
How can I help my customers?

Hugo

over 6 years ago

0 Eric Beljaars over 6 years ago

TI__Mastermind 36756 points

Hi Hugo,

The behavior on the TPS65988 HRESET pin is different from TPS65982. In TPS65988, if there is still a valid configuration image and patch in the device RAM, then the TPS65988 will load from that config instead of from the SPI Flash. If you want to force a complete reboot and force the TPS65988 to reload the configuration from the SPI Flash, I would suggest sending a GAID 4CC Command over I2C.

Thank you,
Eric

0 Hugo Liu over 6 years ago in reply to Eric Beljaars

Genius 5095 points

Hi Eric,

Thank you very much.

Hugo

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TPS65987D: TPS65987D Hreset issue