I am designing an ultra-low-power BLE Audio TWS board based on the nRF5340 and have followed the recommended hardware design guidelines throughout the project. This is my...
Hello! We are in the middle of an upgrade to 3.2.1, and we encounter the following issue using SB_CONFIG_MCUBOOT_MODE_SWAP_WITHOUT_SCRATCH, SB_CONFIG_MCUBOOT_MODE_SWAP_USING_MOVE...
Hi everyone,
I'm using the nRF5340 on a custom PCB board without an external 32 kHz oscillator. On the network core I flashed the hci_ipc sample.
For some reason I occasionally...
Hello,
I am measuring RSSI values with nrf_modem_dect_phy_rssi(...) from the DECT PHY firmware.
The nrf_modem_dect_phy_rssi_event refers to positive values being saturated...
Hi all,
I'm working on BLE time synchronization between nodes using hardware timestamps via GRTC + DPPI + PPIB cross-domain. CRCOK and PHYEND work perfectly, but adding...
Second part of the series Writing Bluetooth LE firmware the easy way blog. This second part shows how to read and advertise the environment sensor data (BME280 using Motsai Neblina module and BME680 using…
The first generation of wireless PC accessories to achieve widespread success (the ones that shipped with a dongle in the box) adopted 2.4GHz radios because these radios offered the optimal trade-off between…
Writing a BLE firmware can now be done with a few lines of code. The code example bellow is all you need to write for a non-connectable BLE firmware that advertise a counter value every second in the…
Hello
I wrote a tutorial on using the nrF52 Development Kit with Keil MDK.
www.keil.com/appnotes/docs/apnt_308.asp
This document features essential debugging capabilities of the nrF52 series.
ETM Instruction…
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During connection procedure of BLE, there are three packages: SCAN_REQ, SCAN_RSP 和 CONNECT_REQ。
SCAN_REQ: Scan request, issued by MASTER DEVICE, send to SLAVE DEVICE,sent by the Link Layer…
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MTU: ATT Maximum Transmission Unit (MTU) is the maximum length of an ATT packet. The ATT MTU is defined by the L2CAP and can be anywhere between 23 and infinity. The implementation of the Bluetooth…