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Questions tagged [nrf52]

The nRF52 is a series of system on chips (SoCs) from Nordic Semiconductor suited for Bluetooth Low Energy and ANT operations. The chips are built around a 32-bit ARM Cortex M4F CPU.

The nRF52 is a series of system on chips (SoCs) from Nordic Semiconductor suited for Bluetooth Low Energy and ANT operations. The chips are built around a 32-bit ARM Cortex M4F CPU [1].

[1] https://www.nordicsemi.com/eng/Products/Bluetooth-low-energy/nRF52832

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Connection handle ID getting wrong in BLE header Nordic nRF52832

I am developing one solution using nRF52832 BLE which has one or more BLE peripherals and only one central device. This concept is based on BLE star network everything is working for one BLE peripheral. But now the problem is when I connect two BLE…
vishalB
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Why am I getting errors after inserting functions to example code?

Apologies for the incredibly vague title; I will try to be more specific here. I'm developing a program on a NRF52832 microcontroller in the SEGGER Embedded Studio IDE that receives data from an external ADC via SPI and outputs a PWM signal with a…
Payton Grenich
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SPI Slave data shifted by 4 Bit

I am using a nRF52832 chip attached to a DW1000 module. The issue is when requesting data from the DW1000, the first byte is missing. The chip is supposed to send 0xDECA0130 but instead I receive 0xCA0130FF. When I make the receive buffer larger,…
flashingx
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Intermittent BLE Throughput Problems between Android and NRF52832

I'm looking for help determining the cause of an intermittent BLE throughput problem I'm having. The Setup: I have a cell phone (nexus 5x) running android 7.1.1 with a custom application that connecting to 3 sensors via BLE. The sensors are based…
kabla002
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Bluetooth Pairing with Nrf UART is not working properly

The Bluetooth pairing is not working properly. I am developing the Application based on Bluetooth pairing with UART. Here I have included my concept and Program.Help me out to fix the problem. My Expected Result is If the user is press the Connect…
sivaprakash
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3 answers

rxandroidble write only sends the first 20B

I try to write >20 bytes data on a given (custom) characteristic. In the following log, I tried to write 85 bytes: code: connectionObservable .flatMap(rxBleConnection -> rxBleConnection.writeCharacteristic( …
yacine
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BLE backup bond information

I implemented android app which pair and bond with nordic nrf52 ble chip. I am wondering if its possible in Android to backup or save bond information and reuse it in another android phone in case I lost the bonded phone?
Nahro Nadir
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handling iso datetime in nrf52

I am using nrf52832 chip. I will be receiving time in isoFormat. I am wondering how convert the iso format to get the date and time in my C program. I am not using any RTOS but doing everything on baremetal.
tharun
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As to the GPIOTE function(External Interrupt) of nRF52832

I have some trouble to control GPIOTE function with nRF52832 sdk, when using 14.01 version(SDK), it seems that the GPIOTE function can't be used with BLE function, I used the code below, it made hang-up issue of system, why? I wonder whether GPIOTE…
Gihyun Yun
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Cannot step past first instruction in Keil disassembly window

When I run the UART app nRF5_SDK_12.3.0_d7731ad\examples\peripheral\uart in debug mode, the disassembly window opens, and I seem to get stuck on the first instruction. Step over doesn't step past the first instruction. Why is that? Thank you. Here…
the_prole
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TRF7970: Mifare Classic authentication

I am doing a project aimed at reading/writing data from Mifare Classic rfid card, by nrf52832(Cortex™-M4F based) together with TRF7970A (Multi-Protocol Fully Integrated 13.56-MHz NFC / RFID Transceiver IC). The pre-authentication part is done…
Alex Postnikov
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Device firmware update over ble from STM32 to NRF device

Is this possible to update firmware from an STM32 device to NRF device over ble. Need step-by-step approach to achieve this. The update procedure includes, Prepare the firmware update, Transfer the firmware, Verify and execute the updated firmware.
leo
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Where could macros be defined if there is only a definition in a header but the macro isnt doing anything?

So im trying to setup some interrupts on the Arduino BLE 33 board, and im looking at Nordics header files for their nrfx drivers. There is a file called nrfx_glue.h which i've attached that creates a bunch of macros but the macros dont do…
tim p
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Pairing (security) example for Seeed XIAO nRF52840

I can't find example how to do BLE pairing with Seeed XIAO nrf52840 board. It doesn't matter to me if it will be Arduino or Circuitpython libraries. Is there something like this somewhere? I would like to use this board for my project, but would…
Clyde
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Arduino's micros() method is taking over 500 cycles to execute on Nano 33 BLE Sense

I posted this question over on the Arduino forum first but my questions haven't been receiving much attention lately so here goes... I worked pretty hard to make a simple sketch proving how slow the micros() method is on the Nano 33 BLE…
Landon
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