First time here? Check out the Tour!
On the radio_test example, the functions
printf are heavily used, however, I haven't found where they are defined. This example is reading the data from the UART port, but there doesnt seem to be any ... (more)
startup_nrf51.s I found something like this.
#ifdef __STACK_SIZE .equ Stack_Size, __STACK_SIZE #else .equ Stack_Size ...
Story Short: When trying to run the ble_app_uart example on a custom board with a nRF51822QFAAH0 chip, the code faults and resets at the point in tries to call sd_softdevice_enable.
What are the prerequisites for running the examples of the ... (more)
Assuming SDK 12.x
For those people that want to integrate the Buttonless DFU service to their app, which uses already one custom base 128bit UUID, please make sure to:
softdevice_handler.c (located at
I am using a nRF52-DK board to receive data from the USB port using Serial, and transmitting it using ESB to a second board. If I use either Serial or ESB individually, it works fine. I have a ... (more)
I've got an nRF52 application which is based on the nRF OpenMesh https://github.com/NordicSemiconducto... but has been vastly customised. The application either acts as a mesh device and allows a single connection (peripheral device) or acts as ... (more)
When using GCC and Eclipse with SDK 13.0.0 to program an nRF52832 with the Serial and ESB libraries, are there any limitations as to where you can put event handlers? Do they have to be in ... (more)
I am new to the nRF processors (but not new to embedded progarming). Trying to use the evaluation board with the examples on the SDK. After realizing the freeware Keil can't link most of the due to ... (more)
I came across interesting problem I couldn't find answer to.
In my project bss size printed by arm-none-eabi-size is larger than the value that can be calculated basing on *.map file. Using arm-gcc 4.9 2015q3 + NRF SDK10 ... (more)
I am trying to implement a Single Bank DFU over Bluetooth for my nRF51822 (256KB / 16KB RAM) using SDK v7.1 and Softdevice 110. I am using GCC to compile the bootloader and in order to switch from dual ... (more)
I am using NRF52DK and trying to debug an SPI transfer, using SEGGER_RTT.h to print. However, printing of the logs are not consistent. Some debug lines do no appear in the JLinkRTTClient.
I have put
SEGGER_RTT_printf(0,"SPI Tranfer ... (more)
I am programming a beacon, first I had some problems using
sd_ble_gap_adv_start() so I changed to
Now I have a problem when compiling:
_build/nrf52832_xxaa_main.c.o: In function `advertising_start': /Users/.../pca10040/s132/armgcc/../../../main.c:388: undefined reference ...
I have been struggling with Eclipse for a couple of days. I created the pwm_driver project via the File/New/Makefile with existing code option. After initializing the appropriate Build and Preprocessor properties along with manually entering the GNU ... (more)
I connected 74CH595 shift registers to nRF52DK board. When I built and upload my code with Keil everything works just fine, but if I compliled it with GCC and upload with nrfjprog, the 74CH595 cannot act properly. I need ... (more)
Hello, I would like to stream sensor data from the Bosch IMU sensor over BLE at a maximum rate. I can collect data over I2C from the sensor but would like to know if there is an example that I ... (more)
I need to have a Central device physically connected (via UART) to a sensor. Data is collected from the sensor and sent to a number of Peripheral devices which use the data to perform a task.
So far I have ... (more)
I am trying to get the ble_app_uart project to build in Eclipse for the PCA10036 nRF52 board. I have followed the Tutorial titled " Development with GCC and Eclipse" and successfully built the ble_app_hrs in both Eclipse and command line. Now ... (more)
I'm trying to implement DFU support to our application on nRF52832. I got it working fine with SDK11 SD2.0, but now SDK12.2 SD3.0 is causing "gray hairs". I used the file "nrf_dfu_flash_buttonless.c" from examples ... (more)
My problem: The run of my 1. DFU - Implementation delivers an error code after executing the line "err_code = ble_dfu_init(&m_dfus, &dfus_init);". For my opinion this is caused by reservice_uuid.type = 0. The parameter of my application are the following:
nRF52832 ... (more)
I have two questions with the remaining unresolved symbols being the most critical. I will decribed the situation I have encountered as a sequrence of chronological steps below:
1) I am using a GCC and Eclipse (Mars 2) development environment ... (more)
Hi. I've developed a custom board on an old E0 51422 chip with SDK 6.1 and SD110 7.3.0. Everything works fine with that setup (SPI, interrupts, timers, etc). Got new batch of chips of version H0 ... (more)
I'm building a software for the nrf5822 using pc10028. I'm using CMake and after following both http://morf.lv/modules.php?name=tutor... and https://devzone.nordicsemi.com/blogs/... I successfully made the debugger to work... except I ... (more)
I've been experimenting compiling my project with Clang and have run into some issues with the supervisor calls and their wrapper in nrf_svc.h.
Without optimizations, the calls seem to work fine. See the following asm generated ... (more)
As I was going through the directory structure, I noticed that ble_app_hrs_gcc_nrf52.ld in the ... (more)
We've developed a custom board based on the nRF51822-QFAA and an MPU-6050 IMU. It runs on a li-pol battery and uses S110.
I've encountered a strange problem when power-cycling the device (taking the battery out and putting it ... (more)
I found lots of macros in Makefile like below,but I did not found they were used in C or assemble file. I am cleanup my Makefile to remove unused macros... so could I remove them?
NRF52_PAN_12 NRF52_PAN_15 NRF52_PAN_20 NRF52_PAN_30 ... (more)
I am in the process of upgrading a quite large project from SDK 8.1 to SDK 12.2. It uses the nRF52 DK, PCA10028. I still use the toolchain I stated with, including a Eclipse Kepler and GNU ... (more)
I am trying to set the nRF52 to power off and wake up on a momentary button push (scope measures momentary push logic low around 50ms-100ms). However, I am struggling to have my debounce timer start up fast enough ... (more)
While updating from the antique NRF51 SDK8.1.0 to the newer SDK 12.2.0, I came across a problem: Gcc crashed with: c:\users\elm\documents\nordic\nrf5_sdk_12.2.0_f012efa\components\device\nrf51.h:119:130: fatal ... (more)
I'm using nRF52 + SDK11.0.0 + s132. I'm following this tutorial. I am able to build from the command line and from Eclipse just successfully. However, Eclipse is unable to properly decode the include paths. It is properly ... (more)