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...
I want to extend the ble_app_multilink_central for pca10028 Example to be able to communicate with a sensor via SPI and then initiate a connection with another pca10028.
...
I'm trying to discover a vendor specific service that has 7 characteristics. However, when I increase BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV to 7 , ble_stack_init() hard faults...
Is it possible to use PPI and RTC to turn the HFCLK on or off ? (external Xtal)
Example - something like this ...
NRF_PPI->CH[9].EEP = (uint32_t) &NRF_RTC0->EVENTS_COMPARE...
hello,
when I use the chip nrf51822(3rd generation),I find that when I open DCDC function,the ability of chip receiving msg is weaken.the receiving distance is shorter a...
I am doing a blob read on two s130's with s120(central). I am getting BLE_GAP_EVT_CONN_PARAM_UPDATE event while doing a continuous blob read.
Some times i get BLE_GAP_EVT_CONN_PARAM_UPDATE...
Hello,
Can you please provide full schematic for nRF52 dev board. I looked though the documentation and there are small bits of the schematic, but I didnt find full sch...
Using a nRF51822-QFAC-A1 on the nRF51-DK I noticed unexpected behavior when starting the HFCLK and LFCLK in rapid succession. This variant reproduces the problem at startup...
I would like to have 31 bytes for my own in advertising and so far I have disabled everything except adv_flags (it still takes 3 bytes cause of length, AD type and value)...
Hi there,
just wanted to know what the practical differences between the JLINK and mbed MCU interface firmwares are.
From what I experience I can only use the UART over...
Hi,
I'm writing a service to send indications on a couple of characteristics that are part of a service. In order to determine whether indications have been enabled or not...
Hi,
Is there a smaller version of the desktop 2 firmware? I don not need firmware for NFC only ble 4.0. Also would like less complicated pairing. The 6 didgit code is unnecessary...
Hi , I tried to change the transmission power using the s110 API and tried checking if the value of the register storing the transmission power is changed or not. Following...
