nrf_delay_us(999)

[daniel]

Hello,

Just uVision 5.14 and SDK 7.2.0. Try to compile the blinky example and get the next error

._build\nrf51422_xxac.axf: Error: L6218E: Undefined symbol nrf_delay_us (referred from nrf_delay.o).

What's wrong?!

Thank you!!

daniel

[Hung Bui]

Hi Daniel,

Have you make sure you referred to nrf_delay.h in the project setting. It's located in \components\drivers_nrf\hal.

The nrf_delay_us function is defined in that file.

[daniel]

Hi Hung,

Ok! I'm compiling now. I'm trying to download the application with Uvision and nRFGo Studio and no LEDS blinking.

I got message that application has been downloaded and verified in both. I'm sure I'm downloading the right .hex... verified by date of when it has been compiled.

I saw there is a red cross line 8 in nrf_delay.h but it compiles.

Please... any suggestion??

Thank you again!!

Best regards,

daniel

[Hung Bui]

@daniel: I'm seeing that you selected the project with s110 but you haven't programmed the softdevice in. So you should either choose the blinky_blank_pca10028 (and don't program softdevice) or use blinky_s110_pca10028 and program the S110 softdevice. The softdevice hex file can be found on our website.

[daniel]

Yes! you were right. I everything goes fine now! LEDs blinking!!

Thank you! :):):)

daniel

[Hung Bui]

@daniel: next time please post your comment in comment box, not as an answer. If the issue has been solve, please accept the answer :)

[daniel]

You are right again... I saw it just click answer button... sorry! :P