AM5706: Faster wake up

Hitoshi Sugawara

Mastermind 20670 points

Part Number: AM5706

Hi Champs,

A customer would like a faster wake up.
The sound has to be made just after power on.
If the sound comes out within 1 second, it would be nice.

Do you have any idea to achieve it?
OS: Linux or TI-RTOS.

It is OK to control it by A15 or M4.

Thank you for your kind check.
Best regards,
Hitoshi

over 6 years ago

0 Biser Gatchev-XID over 6 years ago

TI__Guru**** 393215 points

Hi,

Are you asking about wake up from a low-power state or power-on? It isn't clear from your post.

0 Biser Gatchev-XID over 6 years ago in reply to Biser Gatchev-XID

TI__Guru**** 393215 points

Also, please clarify what you mean by "a sound". Is it a buzzer or you need to play audio through codec?

0 Hitoshi Sugawara over 6 years ago in reply to Biser Gatchev-XID

TI__Mastermind 20670 points

HI Biser,

It is from power on.
The buzzer is acceptable.

Thank you for your asking.
Best regards,
HItoshi

0 Biser Gatchev-XID over 6 years ago in reply to Hitoshi Sugawara

TI__Guru**** 393215 points

It should be possible then. Easiest way will be if they choose a self-resonating buzzer that doesn't require PWM. Then they will only need to toggle a GPIO to turn it on/off, and this can be done early in the bootloader.

0 Hitoshi Sugawara over 6 years ago in reply to Biser Gatchev-XID

TI__Mastermind 20670 points

Hi Biser,

Thank you for manipulation.
Let me discuss with the customer.

Thank you again.
Best regards,
Hitoshi

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AM5706: Faster wake up