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...
Hi,
I am sending data from Android phone in every 200 ms to nRF8001. But sometimes I found there is a 50 ms or 100 ms delay. It looks like nRF8001 spending some time in...
Hi,
I tried the nrf51_iot_sdk_0.8.0_f1f6187 and flashed the coap example (examples\iot\coap\ipv6\client\boards\pca10028\armgcc) with the s1xx-iot-prototype2_softdevice...
Hi,
In many places in the nRF51 documentation (e.g. developer.nordicsemi.com/.../a00081.html) the term "Master Control Panel" is used without clarification that this is...
Hi:
i use SDK7.0 , i write data in flash (address:0x0003fc00)and the data is erased when SDK run.
and is there any way to protect the page that i want to write or...
Any recommendations of power ic to be used in an nRF52 based system?
I am thinking of using DC-DC converter from LTC3553 . Is DCDC converters a good choice for powering nRF52...
Hello,
I am basing a design on the reference design from the nRF-DK (pca10028?). I am trying to understand the implications of using an SMA connector footprint for testing...
I tried to get the ANT background scanning example to work on a PCA10028 and it jumps to softdevice_assert_callback when opening the ant channel. Downloaded everything fresh...
Hi Guys,
I'm new to using the nRF51822 environment but I've used AVRs for years, so please be gentle...
I'm wanting to drive a strip of WS2812 RGB LEDs from an nRF51822...
So I have my nRF51822 updating the characteristic value and sending notifications once every time I receive a radio notification.
uint8_t readings[20] = { 0, 0, 1, 2, 3...
I'm trying to set up TIMER0 to interrupt the timeslot 500us before its end.
It doesn't seem like the NRF_RADIO_CALLBACK_SIGNAL_TYPE_TIMER0 signal is happening, I've put a...
When I try to enable SD having earlier initialized Gazell (SD resources variant) sd_ble_enable() returns 2 (SOFTDEVICE_NOT_ENABLED). If I remove the Gazell initializaton it...
I am trying to work with a custom 3rd party BT 4.0 peripheral device which uses an nRF8001 to transmit data as temperature values in the Bluetooth Health Thermometer service...
Hi,
Slight problem here with bootloader updates : right after download, I copy from SWAP (0x16000) to normal location (0x38000 in my case).
sd_mbr_cmd.command = SD_MBR_COMMAND_COPY_BL;...
I am wondering how to precisely measure my power consumption. Till now, I have been using INA216 on PCA10004 board + labView for acquisition, but it is not precise enough...
