9,015 questions

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Send write characteristic command data to all connected peripheral

Hello,I use s120 and I wnat to send data(write charactheristics value) to all connected peripheral when I receive a character from uart(in uart event handler)?(I use ble_app_multilink_central_s120) Can I do this using sd_ble_gattc_write() ?If yest,what ... (more)

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Request to post the sensor and display names you use with Nordic Chip [closed]

Hi,

This is a request for all the users to post some details of sensors they are using along with Nordic chips. We will get familiar with 10 most popular sensors that are used. We will try to answer questions ... (more)

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Programming an IAR generated hex file fails

Hi,

I run a custom board with an nrf51822. If I program the device in the IAR IDE everything works fine but I cannot program the generated hexfile with nRFgo Studio or nrfjprog.

Using nrfjprog I read this in the ... (more)

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How to make a new board support for mbed

When my nRF51 DK is only a board without any software.How can I make it work and support for mbed? If I have to flash the SoftDevice, the bootloader by using nRFgo Studio or other tools? And where can ... (more)

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how to get complete version of audio converter ?

i am finding a way to use audio converter for all time.

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i failed to program the ptr5518 module with a jlink EDU.

it gives me :

\$ JLinkExe
SEGGER J-Link Commander V5.02 ('?' for help)
Compiled Aug 28 2015 19:48:33
DLL version V5.02, compiled Aug 28 2015 19:48:30 ...
(more)

14
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App timer prescaler

I know this should be simple, but the prescaler is confusing me...

If I initialize my timers with a prescaler of 0, APP_TIMER_INIT(0, ...)

Then the max timer I can have is 512 seconds?

What if I do: app_timer_start(timer_id ... (more)

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2

nRF 52 DK nrf_gpio_pin_read() always returning a 0 ?

Hi all,

I'm having an issue using the nrf_gpio_pin_read() function from the nrf_gpio.h file. When I call it every time after calling nrf_gpio_pin_toggle() on the same pin I am still always getting a 0 on my return. Any ... (more)

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PWM resolution of nRF51822

What is the maximum resolution I can achieve with the 4 PWMs of the nRF51822?

Is it the same for each one of the 4 or are they different?

11
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Is program verified if "lock entire chip from readback" is checked?

We have a factory in Hong Kong building and programming nRF51822 modules for us. We may go to a fancier solution in the future, but right now we are using nRFgo Studio and a bed of nails fixture to program ... (more)

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MCP and Windows Virtual Machine?

I've seen a few posts in regards to the usage of MCP in a windows virtual machine. From what I can gather, this setup just will not work, however I haven't really seen an official statement/note on ... (more)

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Using sd_ble_gap_connect to connect to a set of addresses and whitelisted devices

Hi,

I'm using sd_ble_gap_connect to connect to a set of known address and whitelisted devices. My central periodically (once an hour) needs to check on a known set of devices and rather than poll each individually I thought I ... (more)

10
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1

read parameter is not updated if bluetooth is disconnected

we are making a pedometer. when you are connected, you get notification for every step you make (just an integer)

you just did 50 steps. you can see it in the app. now you disconnect. you continue to do some ... (more)

31
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I am unable dot get ble dfu bootload to work with and soft device other than s130

I have built the dfu_dual_bank_ble_s110_pca10028 project and attempted to load the ble_app_hrs_s110with_dfu_pca10028 application. I did find that if the use the S130 softdevice the download worked. The application does not run after down load because it is built for the ... (more)

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i cant find lbs example on \SDK8.0.0\examples\ble_peripheral\nrf51-ble-app-lbs-master\arm and compile.

i cant find lbs example on \SDK8.0.0\examples\ble_peripheral\nrf51-ble-app-lbs-master\arm and compile.I planned to work with nrf51822 dk. The given example in github shows in keil 4 as

Build target 'nrf51822_xxaa_s110 (256K)' compiling system_nrf51.c... system_nrf51 ... (more)

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DFU from application

Hello Expert,

I am using SDK 6.1 and Softdevice 7.1.0 (s110) for our 256K/32K nrf51822 platform. As of now I wanna port DFU feature into our project. Of course, when burnt with bootloader, nRF toolbox can ... (more)

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Please can any one tell me from where I can get this programmer? Nordic have stopped selling development boards in which we can get the programmer. I think this could be a major draw back for all developer using Nordic chip.

19
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LIN-bus SW driver for nRF5x

I would like to add LIN-bus to a project of mine. The hardware part is easy, connect a LIN interface ASIC to the UART of the nRF5x. But writing my own LIN-bus SW driver that fulfills the LIN-bus standard is ... (more)

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https://devzone.nordicsemi.com/questi...

Is it really necessary to buy a Dev Kit?

Isn't it possible to obtain a Key without a Dev Kit?

How does the "Bluetooth low ... (more)

7
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BLE Disconnect Timeout

Hello,

How can we force a device to disconnect from a BLE Network after a certain period of inactivity (timeout) ?

Thanks.

20
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1

Generate two PWM waves with delay in nRF51822

I want to generate 2 fast PWM waves with 25% duty cycles from nRF51822. They have same frequency of 4MHz but there is half a cycle delay between them. I checked the nrf_pwm library but couldn't find a function ... (more)

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BLE uart slow

Hello,

I used ble_app_uart_c and ble_app_uart exemples on 2 tiny ble boards and S130.

Write and notifications are very slow. Does someone have an idea ?

Connection settings :

define ...

(more)

46
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Problem running nrf52 SDK 0.9.1 uart example.

Hi,

I'm trying to run the uart loopback example in the nrf52 0.9.1 SDK with DMA enabled but it is being caught in an error catch. It runs fine without DMA enabled though. I'm enabling DMA ... (more)

17
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I am trying to program nrf51822-04 using nrf51-dk

Hi all!!

sorry to trouble you with this but I work over it for the last 3 days and no breakthrough..

I am using a nRF51DK with the MBED program. I am trying to download the application that comes as ... (more)

54
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1

S130 potential unstability case

This code do a test triangle with 3 boards on mbed (using BLE API). I have digged in BLE_API and it looks like if instability was in S130. Have you this kind of test in internal ?

I want to help ... (more)

12
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1

Need recommended pad layout for the NRF24L01P

We are a contract manufacturer. We are trying to help one of our customer's with their bare board design which uses your NRF24L01+ (NRF24L01P) that comes in a 20-pin 4x4mm QFN-EP package. The datasheet gives a mechanical outline of ... (more)

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I have been reading a lot of post about static pairing passkey using S110. I have tried two example provided in this threads: https://devzone.nordicsemi.com/questi... https://devzone.nordicsemi.com/questi...

For now I can pair my smartphone ... (more)

34
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1

Hi!

We are currently writing a simple bootloader which reads the new application image from a external SPI based flash memory. We are using the S110 SoftDevice, which works excellent with our main application.

The bootloader is placed @0x38000, and ... (more)

28
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1

Store Manufacturing MAC on UICR

It that possible to store Manufacturing MAC address on UICR ? The purpose is to track the module, and protect the software..

13
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Eclipse + nRF Packs

Hi,

Did anyone used Eclipse with Nordic Semiconductor packs downloaded with GNU ARM Packs Manager? I've downloaded the packs, but the project does not see(include) them. Do I need to include them manually?

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• Total users: 5860
• Latest user: mishi lhrp
• Resolved questions: 4238
• Total questions: 9015

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Recent questions

• Send write characteristic command data to all connected peripheral

Posted 2015-09-01 09:39:19 by John
• Programming an IAR generated hex file fails

Posted 2015-09-01 08:25:40 by Hum
• How to make a new board support for mbed

Posted 2015-09-01 08:14:34 by DarkerL
• how to get complete version of audio converter ?

Posted 2015-09-01 06:49:03 by Laptop Mobile
• programing ptr5518 with JLink EDU

Posted 2015-09-01 03:03:24 by zskdan