First example as default in nRF52.

[JK0201]

Hello to everyone.

I´m trying to make a project in my SDK nRF52 with the nRF52832 microcontroller, I have Windows 10 and I´m usinf Keil uVision v5.26.

I´m interested in how to use the buttons and leds correctly and I noticed that for the first time, when the card is connected in the PC, a default program that turn on the LEDS when the buttons are pressed is initiated.

Do anyone have the "main.c" of this example? I´ve searched in this page but I couldn´t find it.

I hope you can help me. Thank you.

[twihtronics]

I don't believe I have ever received a dk pre-programmed but I am sure it happens. you can simply download the last nrf sdk and then open the peripheral folder and examples. There you will find a ton of examples. sdk -> examples -> peripherals ... look at blinky and bsp to begin. If you are not using the softdevice the source you want to view will be in the blank folder. arm5_no_packs for keil

[JK0201]

I don´t think that was a mistake because I bought 4 nRF52 cards and all of them are running the same program the first time I run them. I actually have the examples downloaded on my PC, but are more complex that the simply thing I´m searching for.

[Bjørn Kvaale]

JK0201 Yes, it seems that newer nRF52 (V 1.1.0 or newer) are pre-programmed with a simple application, see this link: 

You can find the version number of your nRF52 DK & see the version number on the white sticker on the interface MCU of the DK. Also, good advice from everyone else. I would focus on the peripheral folder like mentioned & the doclib documentation link that was provided.

[JK0201]

Thank you Bjørn Kvaale. In that page can I find the code I´m looking for?

[twihtronics]

Cool!!

[Bjørn Kvaale]

Seems like it's the LED softblink application code.