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...
Hello,
I am looking for (10) pieces of the tiny nRF52810-CAAA for a prototype.
Apparently, distributors do not yet have any stock and the lead time is 14-16 weeks.
Might...
This is probably a very easy question to answer and I apologise for not fining the solution myself but I have been trolling through the documentation for several hours now...
I am doing rapid development for a project, using the nRF52840 DK. Two key features are USB and BLE central role.
I started with the usb_cdc_acm project and am merging in...
Hi all,
I added newliib-nano to my GCC project, when I use new ( std:: nothrow) I got
I add some C++ flags and link flags:
custom-nano.specs:
How should...
Hello everyone!
I have been working on getting data from ADS1299 ( ExG bio-signal sensing). I successfully got data from this IC using STM32F407VG (Cortex M4) and transmitted...
Hi I'm using custom nrf52832 board, SDK14.02 and SES. I want use pwm driver to generate 2 channel pwm wave with custom nrf52832. Everything is working fine in nrf52DK board...
Hi,
I am to update the SD version that I am using, and in the documentation to create a firmware packet with nrfutil states that the table can vbe found with nrfutil pkg...
nRF52832 / SDK V15
Hello,
Is there is way to read the nRF52 flash memory (any location if possible) over UART without uploading a program in the flash memory for that...
Hello ,
I'm trying create a beacon Scanner.
I'm using the s130 protocol stack on the nRF51 DK , namely the nRF51422 SoC and PCA10028.
what I'm trying to achieve is...
I am trying to work through the MQTT-SN Examples that comes with the Thread SDK. When I use the prebuilt image for the Raspberry PI 3 board everything works great however...
Hello,
I use an I2C device to wake up a nrf52 microcontroler.
If I just use the init function
static ret_code_t twi_master_init(void)
{
ret_code_t ret;
const nrf_drv_twi_config_t...
Hi,
I'm using Segger Embedded Studio (with gcc naturally). The standard C++ exception handling doesn't work: exceptions are not caught by exception handler. Is there a way...
I have read a lot of the Dev Zone questions here about the RF Antenna design and read the PCB design guideline tutorials and skimmed some of the white papers. Of course the...
The current example TWI_handler will hang forever is it exits with anything other than NRF_DRV_TWI_EVT_DONE. This can occur if a TWI slave fails to acknowledge the address...
Hi,
Based on the electrical specification of nRF52840's HFCLk, the current consumption seems quite different depends which crystal is being used (attached the screenshot...
