CMWX1ZZABZ Power issues Murata LRWAN1 (ver1.1.1)

[Kevin Genskowsky]

Posted on July 13, 2017 at 16:48

Have been working with this guys a couple of weeks and the yare asom, but the code seems to be draining power like crasy even in stop mode 1mA.

Has any one been able to lower power consumption on stop to uA? 

[Tesla DeLorean]

Posted on July 13, 2017 at 17:07

Not sat and measured. Not using in Low Power/Energy mode, but code there seems poorly executed,

 bunch of grinding delay/spin loops.

This on the DISCO or your own implementation?

The DISCO has the TCXO strapped on all the time. You'd need to check the code build, that LOW_POWER_DISABLE is not defined.

[Amel NASRI]

Posted on July 17, 2017 at 16:06

Hi

Genskowsky.Kevin

‌,

Based on your posts in

https://community.st.com/0D50X00009XkYNDSA3

, your problem seems to be fixed.

Do you confirm? Could you please update this thread with the solution you found?

Thanks.

-Amel

[Kevin Genskowsky · Accepted solution]

Posted on July 20, 2017 at 17:05

Yes Indead

st.mcu

‌

I disabled all led configurations and initializations. And fisicaly Conected VDD_TCX0 to PA

and changed in mlm32l0xx_hw_conf.h

#define RADIO_TCXO_VCC_PORT GPIOA

#define RADIO_TCXO_VCC_PIN GPIO_PIN_10

Seems that some more configuration could be missing in PA Will have to check more details when I have some time.