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 all,
i want to know answer related to following question
1)what is use of uicr?
2)if i place some value in uicr and then change the image,then is there will be change...
It used to work, but now it says "Connected" but the rest of the GUI never changes and the mouse just shows a busy spinner. Here's the log file:
0;13:45:18.9900 [MainThread...
Hi Sirs:
I've searched 52840 specifications and devzone, but there is no related information about the maximum external flash size could be adopted on 52840.
Would you...
I'm attempting to use PPI and Timer2 on the NRF52810 to count the clock pulses coming out of the SPIM driver. As there is no way to do this internally (as far as I know) I...
Hi,
I'm using a nrf52 as pheripheral BLE in embedded system with sensors. I need a ble central to receive the data from the sensors by connecting to the nrf52. I'm trying...
Hello, i am trying to store a lot of informations in the flash in order to do this i separated my data in several arrays. I want to store all my arrays in with the same file_ID...
In our project, two RF modules (with nRF24L01+ IC) are used in communicating data. If there is no WiFi around, the two RF modules can communicate very well without packet...
Hi everyone,
I found this example in the SDK for the nRF52840 Dongle: nRF5_SDK_15.0.0_a53641a\examples\connectivity\ble_connectivity\pca10059\ser_s140_usb_hci.
With this...
Dear Sr.,
Can't detect carrier
They are two PCB one TX Carrier and other mush Detect the carrier ---------------------------------------------------------------------...
mains.c
Hello Everyone,
I have deveLoped the Custom PCB whixh has the push button which is connected to VCC so i would like verify my software logic for button configuration...
Hi,
We have a new product based on the NRF52840. We are trying to add NFC record text to the firmware that based on SDK15. We could get the NFC record text from the NRF52840...
We're evaluating the nrf52840 and I am looking at the SPIM peripheral. The datasheet states the following:
"If several AHB bus masters try to access the same AHB slave at...
i am working on the Cycling Speed and Cadence sensor central configuration using nRF52832 DK in Segger Embedded Studio. I used the RSCS central example of nrf_sdk_v15.0 and...
I'm trying to migrate a working application from SDK 14.0.0 to SDK 14.2.0. I was using app_twi on SDK 14.0.0 and am now using nrf_twi_mngr on SDK 14.2.0. One difference is...
Hi all,
Just noticed the RTT logs are broken with GCC in SDK14.2 while they work fine in SDK14.1
I found the cause is the definition of the macros:
/*
* For GCC...
Hello.
I am working with a custom board. I have been wondering how to change the default polarity for a pin? I need LED_1 to have a polarity and the other 3 LEDs to have...
