Is it possible to wakeup the DA14580 by an external GPIO from Extended Sleep Mode in less than 10 us ?
In the new Software Release Notes 3.0.4 there is a reference to the application note AN-B-026:
"DA14580 wakeup mechanism using an external GPIO (ie CTS or SPI EN). More information is given in AN-B-026"
Perhaps this application note will answer my question - but I could not find it.
Hello , AN-B-026 is out for review rigth now, so will be posted shortly (few days). In the meantime, i will find an answer to your question.
BR JE_Dialog
Is there any update on this ?
In the datasheet Table 6 is written: Typ tsTa(Buck) = 1ms (time from deep-sleep to software start).
What is the startup time from Extended Sleep Mode to software Start ?
Hello , sorry for delay.
For extended sleep mode, there is an period from the interrupt (timer, or external event) to processor activity (WKUP handler) that is variable: 600us to 1.1 ms. Then the period from WKUP handler start to the first run of rwble_schedule is ~3ms.
Thanks & BR
JE_Dialog
JE_Dialog, Is there any update on this? I still don't see AN-B-026 available in the resources. Am I missing it or is it still under review? Is there an example project that performs a wakeup on a SPI chip select event? I am trying to do that because I am using the DA14580 as a SPI slave.
AN-B-026 is now online . Apologies for delay.
BR JE_Dialog