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...
Hi,
My behavior is as follows
Turn on my device(use 51422) and advertising(2 Service and 3 Characteristic)
Turn on my cell phone(Samsung Note3),scan my device...
Hello:
I used analog IIC write MPU6050. Again after power download programs, mpu6050 can run up there ACK response. But the debug will not run. Simulation IIC because no...
Hello!
How can I communicate with my nRF24L01+ and nRF51822 at the same time. I can set up same channel, CRC-mode and I don't use ESB. But what about address? How do I set...
we are facing problem with smt M905 module. is there any basic error with this module pad?
smt factory in china failed several times to solder this module.
Hi - In my app, I'm using Bluetooth, the ADC, the TWI, and the SPI. The general idea is to measure lots of things, store the data in SPI NOR FLASH, and occasionally flush...
I'm testing a custom application with the following configuration:
Custom app based on the ble_app_pwr_profiling SDK example.
Using SDK 13.1
S140 SoftDevice s140_nrf52840_5...
Considering that as soon as the connection is established (GAP Peripheral device receives CONNECT_REQ packet) and advertising is over.
Is it possible once the connection...
Can the smart phones or tablets be configured as a peripheral? If yes, why is this not common? Are there any limitations if a tablet/phone is configured as a peripheral device...
Hi!
I'm developing a project with nrf52832 and I'm getting some problems. The micro is only communicating with an accelerometer (MMA8453) and after some time the communication...
Hello,
I am implementing a custom service with several characteristics, one of which is the current temperature. A second characteristic notifies the user if the temperature...
Hello,
I'd like to upgrade nrf51822 QFAC custom board firmware via DFU and change SoftDevice from s110 to s130. Because of larger (than s110) size of s130 I haven't enough...
Hello,
i am using the Visualgdb with sdk v 13.01. i have Nrf52840
i was trying to read the DeviceID of ADXL345
i am using API from this thread
devzone.nordicsemi...
I have used pstorage before but when I add scheduler to my project I face an error in update function of pstorage that in debug I found error_code : NRF_ERROR_NO_MEM .
any...
In short:
Is it possible to connect a nRF51822 s110 peripheral from a central without the need for sending advertising packets (by peripheral)?
If (hopefully) yes...
Hello,
I am trying to create an application that sends a notification from the nrf52 to a smartphone when a sensor reading exceeds a certain value. Would the immediate...
Hi,
I have designed and made a PCB with the nRF51422 chip on it. I am programming the chip externally using the P20 header pins on the nRF51-DK. I am not sure whether the...
What I have to do if I met this ? I round length to fit (len+4-(len % 4)). Is it right ?
if (!(IS_WORD_SIZED(m_start_packet.sd_image_size) &&
IS_WORD_SIZED(m_start_packet...
