STM8A Wakeup from Halt by UART?

trevor2 · ‎2009-02-18

Posted on February 18, 2009 at 09:09

trevor2 · ‎2011-05-17

Posted on May 17, 2011 at 15:02

Can the STM8A be woken up from HALT by the UART?

Is it possible to wake up the STM8A with a pin from the UART Message and then Configure the UART?

olga · ‎2011-05-17

Posted on May 17, 2011 at 15:02

Uart's interrupts cannot wake up the device from HALT, anyway, as you already said, it is possible to configure the Uart Rx pin as external interrupt before entering in HALT mode and coming back at UART configuration afer waking up (loosing first byte received).

Regards,

Olga

[ This message was edited by: diamond on 29-01-2009 13:58 ]

bassinux · ‎2011-05-17

Posted on May 17, 2011 at 15:02

Ciao tutti,

I, want to add, only I2C and CAN can make exit from halt mode for communication interfaces.

Bassinux 🙂

mozra27 · ‎2011-05-17

Posted on May 17, 2011 at 15:02

Hi Bassinux,

SPI also can wake up the device from Halt

Regards

mozra