We need to set a GPIO pin in MCUBoot to activate an external USB hub chip so the USB DFU will work. I would like to do this with code in our project rather than directly modifying...
Hello,
I’m working on a Zephyr-based application using the nRF5340 where I need to optimize power consumption. The intended behavior is:
The device should stay in...
According to the nRF52832 Product Specification, “A step increase in supply voltage of 300 mV or more, with rise time of 300 ms or less, within the valid supply range, may...
https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-9-bootloaders-and-dfu-fota/topic/exercise-3-dfu-with-external-flash/
I have this exercise...
Hi,
I noticed in the nRF54L QFN48 reference design, for the NRESET pin, there is an RC filter (1Kohm series R and 3.9pF shunt cap). What's this for and is it necessary?...
Hello,
I am using a nrf5340 dev kit. When I use SPIM the output from the pins gives the correct hex values but the output's amplitude is only around 100-200 mV. I know that...
Hi,
I'm using the nRF52840 with the SoftDevice for BLE. In my system, it's primarily a BLE transceiver controlled via SPI by an external TI MSP430. We're considering implementing...
I want to give my own custom characteristics fully unique UUIDs, but am unsure how to generate those.
Is there a procedure to generate a custom, vendor-specific base UUID...
Hello,
I'm developing on a nrf51822 with the S110 softdevice.
To save power, I use the sd_app_evt_wait() function to go into sleep mode.
To wake up, i want to use an...
Hi all,
I developed a program that works fine on the dongle. The dongle has a chip with product code: N51822 QFAAG0 1342AA. When I upload the program including the correct...
I'm using s110 softdevice 6.1 SDK. I do bonding in my application the same way as in the ble_app_hrs example (bond, no_mitm). I have a charactarestic set to SEC_MODE_SET_ENC_NO_MITM...
my chip is nrf51822,I used s110-sd-v7, it's work. I switched the software to s110-sd-v8, GPIO interrupt is high priority (APP_IRQ_PRIORITY_HIGH). I erase the flash (pstorage_raw_clear...
I am trying to create an nRF8001 based application that will broadcast battery levels (pipes broadcast, set), and give out temperature data (pipe indicate - TX_ACK) to connected...
For a new product design with the nRF51822-QFAC rev3, could you give me the matching baluns ? Just the Johanson ?
Presently Stmicroelectronics told me that the BALF-NRF01E3...
Hi Sir:
I written below code according to example code.
In timeslot, rng will start with "rng_start_bv ".
Then the process will wait until "rng_ready"==1.
But, it can...
Hi,
I'm trying to implement a pulse counter, and send the data to client via BLE. I have debugged the module of the counter without connection separately, it's working...
The ' Downloads ' tab at www.nordicsemi.com/.../nRF51822-Evaluation-Kit gives only the v2.0 Hardware Files.
I have the older v1.0 board - it isn't quite the same!
Where...
Hi,
I'm having some trouble setting up the vendor UUIDs on a nRF51 devkit. I've written a short application based off of the template example, providing a service called...
Hi
I am using timer1 for generating 4khz input to buzzer.It works fine when no ble starts.When advertising starts buzzer shows some flickers according to advertising time...
hi,
im developing an application with peripheral and central.ive used hrs service its working fine initially bt if you keep it idle after some time the peripheral stops advertising...
I am trying to figure out a way to secure my DFU (via BLE) such that someone cannot sniff the and copy my hex code (and decompile). I cannot use Pairing or Bonding as that...
