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ADSP-2156x

Q&A /SYS_FAULT is always asserted when power up the system using ADSP-21569

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/SYS_FAULT is always asserted when power up the system using ADSP-21569

hibino 4 months ago

Hello,

/SYS_FAULT is always asserted when power up (= /HWRST is negated ) the system using ADSP-21569.

What cause is considered about above situation?

The period of above /SYS_FAULT asserted is about 200ms.

0 Anand Selvaraj 3 months ago

Hi,

Apologies for delay in response.

1) Is the clock and voltage are within the specification of the ADSP-2156x datasheet?

www.analog.com/.../adsp-21562-21563-21565-21566-21567-21569.pdf

2) Is the /SYS_FAULT pin is always asserted for every power cycle/hard reset?

3) Did you follow the Power-Up Reset Timing, Is it possible to share the probing of the same?

Regards,
Anand Selvaraj.
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