• Stuck in high current state during nRF52832 startup

    Folks, Have a very puzzling problem (which means I must have done something really silly :-) Built a prototype in which the nRF52 section is a clone of the one in the nRF52-DK. Vcc at 3.3v is supplied by a TI TLV7163318 dual-LDO, powered by a LiPo…
  • Hardfault when running NRF52832 without a debugger

    I have developed an application for the NRF52832, initially with the Keil toolset and changed to Eclipse/GCC. The application works great when I build/load with the Keil toolset but I developed a problem after switching to Eclipse/GCC. The application…
  • Eclipse with GDB: Debugging session is not initialized correctly, SoftDevice is not started

    Hello everybody, Maybe some of you using Eclipse and GCC have encountered the same problems when you try to start a debugging session. First of all: If you have Bluetooth communication running (either Advertising or a Connection), you cannot debug…
  • GCC startup code assembly file extension should be .sx instead of .s

    In the nRF51 SDK startup code, in the folder toolchain\gcc, there is a file called gcc_startup_nrf51. s . I think this file should be called gcc_startup_nrf51. sx instead, as it contains macro definitions and needs the preprocessor running over it. According…
  • How to know it started first time after flash firmware.

    I'm actually writing some data to the flash. I'm using pstorage api interface. But whenever I flash the new firmware, I get some garbage data. in my main function I would like to know that, after flashing a new firmware, it started for the first time…
  • Why does startup of nRF51822 take massively longer with lower VDD?

    Hi, I am evaluating the nRF51822 for an ultra low power energy harvesting application. I measured the time from power-on (VDD applied) to code exectution (GPIO toggle) using the PCA10005 Rev2.2.0 board from the nRF51822 development kit (Chip markings…
  • Questions about nRF8001 dynamic data

    Hello, I am writing a fairly complex application using the Arduino SDK and an nRF8001. I have a lot of what I want to do working based on looking at the code in the different demos. But I have some questions about how the dynamic data in the nRF8001 works…
  • Implementing a bootloader for nRF24LE1

    Hi all, I'm trying to implement two hex files into my processor, one application and one bootloader. In nRFgo Studio I enabled 2048 bytes in the NUPP field to get a protected and a unprotected area in flash. My bootloader will be placed at 0x3800…
  • At what point in the nRF24L01+ timing diagram does radio transmission begin?

    I am working on a multi-node network application with multiple transmitters and receivers and I have a question about timing for chips like the nRF24L01+. I would like to know how close together two broadcasts from different transmitters can be made.…