nRF52832 and DWM1001

[feyzikesim]

Hi all,

I am working on a project and use DWM1001-Dev. I think some of you may have an opinion about my problem because DWM1001 have nRF52832 microprocessor. I'm trying to reduce the power consumtion as possible. I decided to use the SYSTEM OFF mode for nRF and low power listening mode for DW1000. I can put DW1000 to that state but I cannot wake it up from there. After failing to awaken the chip, I saw that there is an example 8a/8b tx-rx low power listening mode. Tried to port them to my codes but it did not work too. Please help me to figure out how to do it. I know I should ask this question at Decawave's forum and I did But no one gave an answer to my questions. I think that forum is very rarely used. Thank you very much for those who will help me.

Feyzi

[Sigurd]

Hi,

When in System OFF mode, the device can be woken up through one of the following signals:

1. The DETECT signal, optionally generated by the GPIO peripheral
2. The ANADETECT signal, optionally generated by the LPCOMP module
3. The SENSE signal, optionally generated by the NFC module to “wake-on-field”
4. A reset

If you are trying to wake-up with a button/pin press, then a solution could be to configure the pin as sense input(wake-up source):

nrf_gpio_cfg_sense_input(PIN NUMBER, NRF_GPIO_PIN_PULLUP, NRF_GPIO_PIN_SENSE_LOW);

Note that when the system wakes up from System OFF mode, it gets reset