BLE error power consumption

RE: BLE error power consumption

Romain — Fri, 09 Mar 2018 08:25:37 GMT

I find my problem it comes from the SPIS library: the SPIS_CS (chip select) is set to input pin without pull polarity so when my master is off the pni state is undefined (tristate) and power consumption increase. And its not a problem to set this pin to pull-up by default because the ECU in low-power mode doesn't consume current for this pin configuration.

RE: BLE error power consumption

Sigurd — Mon, 05 Mar 2018 14:39:36 GMT

I'm not able to reproduce this. With 1.2mA, it' sounds like the SPI peripheral and the HFCLK is running. Could you provide some example code on how you do this?

RE: BLE error power consumption

Romain — Tue, 27 Feb 2018 14:19:03 GMT

I'm using only SPIS peripheral.

If I don't call the function sd_ble_gap_tx_power_set(-20): the power consumption is the same as previously.

RE: BLE error power consumption

Sigurd — Tue, 27 Feb 2018 12:53:29 GMT

Hi,

What example in the SDK are you testing?

Are you using any other peripherals?

What happens if you don’t call sd_ble_gap_tx_power_set(-20)?

Does the power consumption change if you power cycle the device before you do the measurements?