Linux/AM3703: Wakeup from I2C and UART

Arunkumar

Intellectual 330 points

Part Number: AM3703

Tool/software: Linux

Hi Everyone,

Please help me with the clarification for following questions.

1. Can we wakeup the processor using I2C lines ( i.e. Can we use I2C as a wakeup source) in AM3703??

2. How to use UART3 as a Wakeup Source??

I am Grateful if you help me with this.

Regards,

M.Arun kumar

over 7 years ago

0 Biser Gatchev-XID over 7 years ago

TI__Guru**** 393215 points

The factory team have been notified. They will respond here.

0 kshin over 7 years ago

TI__Genius 16690 points

Hi

#1. No, I2C is not supported as a wakeup source.
#2. If you are using the system off mode (described in 31.4.4.4 system off mode), you need to use a daisy chain wake-up mechanism to use a uart3 pin as wake-up source. Please see more details in the section 3.5.7.2 Device Off-Mode Configuration in the TRM.

Processors

Processors forum

Linux/AM3703: Wakeup from I2C and UART