To be able to upgrade FW through UART, a bootloader for nrf51822 is required in my project. I have tried out the example bootloader in SDK. But this example is using softdevice...
I followed the forum posts and nan-29 to get eclipse 4.3.2 to successfully connect to JLinkGDBServer via a Segger J-Link EDU on Ubuntu Linux.
I can start the GDB server...
I'm using Softedevice 6.0.0 and SDK 5.2. and Keil 4.7.
I Modified bootloader project so it compiles with both ble and hci transports. Currently I use button_0 and button_1...
I am working on the proj that needed 2 MCU and nrf51822 work as slave.
I would like to know any ref on how to firmware upgrade on board without external tool?
We're looking for a Nordic nRF51822 based low profile/small USB dongle that we can use for our iBeacon software.
It would need to come complete with casing and the ability...
Hi all,
i want to establish connection between two threads in cmsis-rtos, can i use
1) semaphore to do this?
2)message queue should be used or any other ipcs can be...
Hi,
I have two CPU in our product. (STM32F2 and Nordic nrf51422).
I use serialization function to link those two CPU(refer to ble_s110_serialization sample)
But I find...
The test of I2C signal found that the logic low level could not be lowered. It was pulled up to 3.3V through the external 1K resistor, and the logic low level of I2C was about...
I'm getting strange behavior when connecting to nRF52840DK.
Log from nRF:
Log from android nRF Connect:
The same code works on our custom board (nrf52832). We use...
Hi Nordic DevTeam,
So I already followed this tutorial on how to add custom service UUID.
https://github.com/NordicPlayground/nRF5x-custom-ble-service-tutorial
I have...
We are using softdevice S140 6.1.1 with nrf52840 for a BLE peripheral. We see that mobile devices are not able to discover this peripheral intermittently for some time during...
Hello, there
We are using a custom board to upload data via udp connection. The send() call not return sometime, and the main thread is blocked as a result
Modem firmware...
Hello,
We are using a passkey in our application and by default is 6 digits long. I have found in other posts that this is mandatory a cannot be changed.
Is it real...
Hello,
I am using NRF52840 with SDK 16.0.0.
We have to detect reed switch pulses coming from a water meter. We use app_button as it provides debouncing inbuilt.
Pulses...
Dear sir,
I want to know about co processor with details of nrf52840 , and is there like dual core processor like another processor.
Note: and need more detail about...
Hi,
I working on a BLE app with 2 custom services.
When I try to expand a characteristic I get a spinning indicator below the characteristic and after a while I get...
in nrf5 sdk 17.0.2 example\ble_app_hids_mouse , hid map
correct is 0x95, 0x05, // Report Count (5) is five ! is five
Forgive me for just reading the comments at first...
Hello, I'm using nrf52832 and i need 2 UART instances in parallel. I get an error when I set the second UART.
Do you have an example using 2 UART instances in parallel?
Hello,
i am new to the topic and am looking for tutorials, additionally to the nordic examples and this community.
I found the following website:
https://embeddedcentric...
Hi,
When a board is connected to debugger, It works well for 2 hours.
But when it is detached debugger, It looks like stuck to POWER_CLOCK_IRQn after 4~6 min after power...
Hello,
I'm trying to make a one-shot MQTT publisher and I'm able to get 22 messages published but every time I try to publish the 23rd the code hangs in mqtt_transport_write...
I'm not able to get a response using the new CONEVAL AT command. I'm using firmware v 1.3.0 and a recent B1 variant nRF9160. Response is always ENOEXEC. I have tried before...
