Problem facing to measure current in nRF51822 MC

[kvrb]

Hi,

I am working with nrf51822 MC. In my Transmitter code, i am using in low power mode. I was enabled the low power in my code (__WFE(), __SEV(), __WFE()). I measuring the current using LED and resistance in series with a multimeter. It is showing around 1.3mA current even in low power mode also it showing the same thing. I put a delay in low power mode so that I can measure current and after low power mode also I put one more 15 sec delay so that I can see a difference in multimeter but I am always getting 1.3mA current.

What I am doing wrong here. I am attaching code with this.

main.c

[Stian Røed Hafskjold]

As Jørgen says nrf_delay_ms() will keep the CPU running. Check out my answer here to see how to use the RTC to trigger an SPI transmission: devzone.nordicsemi.com/.../. You can change this to trigger the ESB transmission instead.

[kvrb]

Thank you, Jørgen Kvalvaag and Stian.

I am able to modify the code and Tx and Rx working fine but the while measuring the current I couldn't able to see the current measurement in a multimeter. In multimeter, it is showing always 1. I measuring the current using LED and resistance in series with a multimeter.

One more thing that, If I want to change RTC so that Tx will transmit packet every 15 sec, what is configuration I need to modify..?

Please see attachment heremain.c