First time here? Check out the Tour!
Section 8.1.2 of the nRF51822 Product Specification states that the "Standby current for 16 MHz crystal oscillator" is 35 uA. The footnote says that the current is drawn "when there are no resources requesting the 16M, meaning there ... (more)
is it possible to handle a 2 second button press and wake up the device with the app button modul? Or should i handle the button without the app button modul to wake up the device after a 2 ... (more)
Hi, where can i find the cpu current ratings for the diffrent System modes.
best regards Nils
i have a problem in my Code, when ic look nrf_delay_us (1000) on the oscilloscope i can se a puls withe 1,3 us thats not accurate enough. What could be a reason for that? What could i had ... (more)
The nRF51_reference manual describes the POWER register for the RADIO. Also that when the Power is turned on the Registers are reset. Other peripherals e.g. ECB have POWER registers defined in their data structures in the header file "nRF51 ... (more)
I have a very simple setup with Arduino board (see attachment)
I wish to move to the nRF51822. I have the development kit and the nRF Go motherboard.
As I understood from the docs I should connect to P5 ... (more)
is there any example how to reset the hole device? Are there any example codes for using something like system_off or system_on ?
Best regards Nils
i need to start my application while pressing two seconds a button. For this i use an gpiote event like here --> https://devzone.nordicsemi.com/index..... But when i want to start my application i first have to push ... (more)
I am building a Bluetooth application that uses Alert and Notification Service. We are using Evaluation board PCA10001, our code is based on the example app from board 6310.
The Central role is on iOS app. I can ... (more)
I have a nRF51822 dev kit, and my dongle is running the master emulator firmware, and master control panel is running on my computer, the dongle is connected and started discovery mode without any problems
I have one of my ... (more)
Dear Nordic Developer Zone,
Is there a way to set the LFCLK (32kHz) on a GPIO for precision measurement?
I am currently designing a PCB to accept the BGA version of the nrf51822.
The Altium reference designs for the CEAA package (BGA) all include vias directly in the BGA pads, which is normally not suitable for reliable manufacture ... (more)
I am unable to see any uart print output when running the uart_example with NRF51822. I am able to see the program execute via the debugger, but have not seen any output. I have tried using it with and without ... (more)
Dear Nordic Devloper Zone,
I am facing a problem with RTC timer.
Here is a scenario :
I have an IOS application which is able to set the current time on the nRF51822.
In the nRF51822 application, I am using a ... (more)
I have a working design on the nRF51822 Evaluation Kit, and I now need to port that into a module that sits on a custom board. Any recommendations for making this process painless? Any module recommendations? Any pitfalls I should ... (more)
want to FLASH upgrade FW in the nRF51822 though my application controller. Is C or C++ code available for this operation or can you deliver a protocol description how to setup this ?
Hello, I'm trying to develop with the nRF51822 Eval kit and GCC and Eclipse. I've been getting some strange behavior and errors lately. I'm not really sure how to describe it better, because I'm not sure ... (more)
Hello, I have major problem trying to debug/run ble_app_hrs example. The thing is that when I enter debug mode the code is stuck here:
0x000001B4 4908 LDR r1,[pc,#32] ; @0x000001D8 0x000001B6 68C9 LDR r1,[r1,#0x0C] 0x000001B8 2900 ...
Dear Nordic Developer Zone,
I am able to ask a Silicon temperature measurement, but not to correctly interpret the answer.
After last measurement, I have got 0x29C. In your documentation, you specify that the value has 0.25°C precision ... (more)
How do I use nRF51822DK without "nRFgo Starter Kit Motherboard"? I have read "nRF51822 Development Kit User Guide v1.2" and have no result how can I only use nRF51822DK hardware and keil enviroment to work.
Dear all: recently, I follow heart rate profile to write custom BLE profile,but I also went to a number of issues. how to wake up the device when entered power system off mode via software . By the way . why ... (more)
I made a PWM with the TIMER2 of my nRF51822 (with the SoftDevice) and was working fine, till I read that I should not use the "NRF_PPI" functions and use the "sd_ppi_XXX". I change them in my code and ...
I have a central device , that acting as a gatt server. the service is customize, and 128bit- primary serivice UUID ,its characteristics' UUIDs(128bit) are all known, how to discovery the service and characteristics in nrf51822 peripheral? I don't ... (more)
Hi Where do I find a measurement report from Nordic which shows the average current consumption for a typical BLE application (1 seconds advertising period e.g.)?
Until now, I could not find any official AppNote or numbers even though ... (more)
I have followed the guide (AN-29) for using eclipse with the nRF51822 but it gives me several errors.
First at all, the linker says: ...../arm-none-eabi/bin/ld.exe: cannot find -lnosys. I found that this library was declared ... (more)
Just bought the nRF51822 eval kit. Looks like it came with some great demos for iPhone (nRF_Demo_Utility, nRF_Proximity, nRF_Temp, nRF_UART), but having trouble getting these demos to work! Did Nordic provide associated Keil project files for these? I think ... (more)
I am trying to specify a fixed port for a L2CAP connection on the nRF51822. The client is a Linux box running bluez (which has BLE support). The client software is designed in Qt, which exposes the underlying ... (more)
Dear Nordic support team,
What is the maximum number of timers that I can create (and use) using the app_timer lib?
err_code = app_timer_create(&m_timer_m_1_0, APP_TIMER_MODE_REPEATED, timer_m_1_0_timeout_handler);
I have tried to initializate 10 timers this morning which are not all involved ... (more)
I was unaware that the 'manufacturer data' in the advertising packets is limited to less than a full payload. However, whenever I set it to >6 the program "crashes".
#define MANUFACTURER_DATA_LEN 7 ... ble_advdata_manuf_data_t adv_manuf_data; uint8_array_t adv_manuf_data_array; uint8_t adv_manuf_data_data[MANUFACTURER_DATA_LEN]; adv_manuf_data_data ...
Dear Nordic Developer Zone,
Since I have implemented a timer with interrupt in my application, the debug mode if the Keil IDE stops working when I try to restart the code execution after a breakpoint for code analysis.
I am ... (more)