uarte current consumption of the reference value

[Stayhungry]

Thank you for viewing my question

nRF52832_PSv1.3, page 345, Idle current for UARTE (STARTED, no XXX activity)

What state uarte current consumption is only 1uA? How is this Idle defined?

"Run Current" is the time consumption of data transmission? If uarte only enable,but no data transmission,how much is the reference value?

My project needs uarte to start flow control and rx enable at any time, using ppi and timer to determine when receive is complete, which can lead to high current consumption. Can I get the relevant current consumption reference?

According to my understanding, even into sub power mode of power-on mode, still have to consider: HFXO consumption, uarte enable consumption, uarte rx enable consumption, flow control consumption, uarte's easydma consumption, ppi consumption, timer consumption

Currently I am in PS1.3, only found the timer consumption, HFXO consumption.

Thanks.

[MartinBL]

Hi,

The UART is in idle mode when it is enabled, but not transferring data.

Have you considered using the CTS input pin as a wakeup source? You can have the system sleeping and when the peer device pulls CTS low you wake up the system and start the UART. Due to the UART's low transfer speeds the system should be able to wake up fast enough.

[Stayhungry]

I'm afraid this will not work, because I need to support 1M baud rate, but also need to support both enable / disable flow control

When I start rx dma, but the sender did not send data can be considered idle state？

[MartinBL]

When the RX task is triggered the UARTE requests the clock and other resources so, no, the system is no longer in idle state and will start to draw current.

[Stayhungry]

Thanks you .