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Hi I followed this Blog post on how to use Segger embedded studio(SES) to compile nrf5 examples and got into some truble with the newest version of SES v3.10c. And this blog post will tell how I solved the problem. I have not tried flashing the compiled code to the nrf52 dev kit, and I will opdate this turotial when I have figured out how to do this (help is appriciated). I followed the blog post up to the point where a project template should be choosen (this was not an option in SES V3.10). When importi...

Working on fast calculation of CRCs I have an algorithm which uses a precalculated fixed lookup table to process data 1 byte at a time generating a 32-bit CRC. The calculation it's actually doing if the current CRC is C and the next byte is b isC = LOOKUP[ ( C >> 24 ) ^ b ] ^ ( C << 8 )where C is in a 32 bit register and >> is a logical shift. The assembler is here, for the nRF52, as it uses the extended 4-byte Thumb2 instructions // on entry // // r0 - current CRC // r1 - pointer to byt...

 nRF5 SDK v12.0 is now available for Nordic developers to download and use in their designs. We’ve added quite a few things this time around to help you, the big story however is the production grade introduction of secure OTA-DFU with signing.Living in a constantly updated worldSoftware updates are a part of everyday life today. Barely a month passes without at least a few things we own getting a software shot in the arm from their manufacturers, be it feature improvements or resolution of ...

DEVZONE FORUM

25.09.2016

range test

Hi, I am thinking of using the nrf24l01 board from Banggood ([here]) to build a transmitter/receiver set for r/c model planes. However one of the things I would like to do is implement a range check function. On most commercial transmitters there is a setting that reduces the output power of the transmitter by about 90%. In this state the operator walks away from the model (usually about 40-50 paces) and checks that the radio is still working (or checks the RSSI if it is a telemetry radio). If all is okay...

25.09.2016

range test

Hi, I am thinking of using the nrf24l01 board from Banggood ([here]) to build a transmitter/receiver set for r/c model planes. However one of the things I would like to do is implement a range check function. On most commercial transmitters there is a setting that reduces the output power of the transmitter by about 90%. In this state the operator walks away from the model (usually about 40-50 paces) and checks that the radio is still working (or checks the RSSI if it is a telemetry radio). If all is okay...

Hi there, I'm definitely a newb when it comes to wireless communication and communication protocols so I'd like this question to be answered at a higher level than what I've read on a prior "Mass storage with NRF51" post. My question is what hoops are required to be jumped through to take files from say an iPhone and transfer them via nRF51822 to a MicroSD card? I'd also like this card to be accessible via a USB connection so I know I'll need a Card Reader Controller (going to use a GL827 contro...