DEVZONE BLOG FEED

IntroductionHere are some tips and tricks to manage your application size.RAM and ROM usageThe total RAM usage is: ZI-data + RW-dataThe total flash usage is:Code + RO-data + RW-data ZI-data - Zero initialized data, data variables set to 0 RW-data - Data variables that are different from 0 RO-data - Constants placed in flash This means that if you have a variable defined globally with the const flag it will most likely end up in flash, while a variable that is prone to change will end up either in RW...

 Using PWM and Nordic UART Service on nRF51-DK (nRF51822/nRF52422) to control an RGB LED over BLE.http://electronut.in/nrf51-rgb-led-test/...

Obligatory DisclaimerSecurity is hard. If a product handles sensitive information then it is the engineer's responsibility to his customers to consult a security professional. However, experimenting with security should be encouraged whenever possible; the world needs better security and everyone has to start somewhere.IntroductionThe security features that are built into Bluetooth Low Energy (BLE) are focused on the link between devices. BLE uses authentication to make it possible for a user to pair with...

DEVZONE FORUM

We're building a low cost device with an nRF8001 as the only means of communication as physical access is closed after the device is built.Is there any way to change the nRF8001 output mode to stream data directly to the micro so we can program it wirelessly, for firmware updates? Supporting electronics can be added and the dedicated pins on the micro will be available. ...

Hello, For some reason the Ble App Uart is not working on my PC anymore. I have gone over Nordic [tutorial](https://devzone.nordicsemi.com/tutorials/5/ble-advertising-a-beginners-tutorial/) again however, the LED doesnt blink and I cant detec the device on my phone or by MCP. I suspect that its because I compared the image on the tutorial and the one I have from the keil dev pannel and found out I am missing Ble_ Nus . I suspect that to be the problem . The pic on left is the tutorial image and the one on...

31.07.2015

Softdevice assert

Hi, What are the general causes of SDS assert in nrf51/52 ? Assuming that SW has been tested, is there something that could happen in the code that would cause the assertion ? Can some HW malfunction cause the assert and is it possible to track the issue down even though SDS has stopped working ? Would SoC reset always solve the problem ?I don't have any problems with the assert at the moment, but i am considering if i need to reimplement the assert handler and what do i need to take into consideration if...