DEVZONE BLOG FEED

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

the application is examples\peripheral\csense , cap sensor can sense my touch, but when I cover a 1mm acrylic on the cap sensor, will not sense my touch.so I want to know how to change the compare time?I want to know the application how to sense change of the capacitance , count the compare times or calculate the time of all the compare.if it count the compare times , that will be useless when change the time of one times charger time....

Can i Program an external STM32(m3) board through SWD of nrf51DK?i can program 51882 external board.it is ok.. but i need to progam an external stm32 board with jlink port.I just use the nrf51dk as JLink debuger to flash....

Hey I am trying to create a blinky project from scratch on System: MAC OSXEclipse Neon GCC 4.9I am trying have it eclipse managed make.I am at a point when after the compilation during the linking stage I get this error. Building file: ../src/system_nrf52.c Invoking: Cross ARM C Compiler arm-none-eabi-gcc -mcpu=cortex-m4 -mthumb -O2 -g -DBOARD_PCA10040 -DBSP_DEFINES_ONLY -DCONFIG_GPIO_AS_PINRESET -DNRF52_PAN_12 -DNRF52_PAN_15 -DNRF52_PAN_58 -DNRF52_PAN_20 -DNRF52_PAN_54 -DNRF52_PAN_31 -DNRF52_PAN_30 -DNRF...