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28,668 questions

1k
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1
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1
answer
Last activity 2014-09-25 16:48:51 +0100 by Asbjørn flag of Norway

"Include" folder path in Keil for *.h files

Apparently there is some limitation on length of the paths with Keil. The paths are specified under "Options for Target" --> C/C++ --> "Include Paths". Due to this limitation paths look like this:

..;..\..\..\..\..\include;..\..\..\..\..\include\app_common;...etc.

Each folder with header ... (more)

550
views
1
vote
2
answers
Last activity 2014-09-25 16:37:04 +0100 by Elena

Possible bug in TWI HW [closed]

Hi

I'm having a strange behaviour when using the TWI HW peripheral for reading from an I2C device. My application tries to read one byte from a register in a I2C device. As background:

-I2C address: 0x55 -Register address ... (more)

311
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no
votes
1
answer
Last activity 2014-09-25 16:17:37 +0100 by Asbjørn flag of Norway

how to debug ANCS

Hi,

I'm done with the hardware interface of my current project. Right now I have a service running with a custom UUID, by writting this characterisitics you have access to the hardware on the device. I am not an ... (more)

97
views
2
votes
1
answer
Last activity 2014-09-25 15:52:57 +0100 by Asbjørn flag of Norway

disconnect if wrong characteristic should be written [closed]

Hi guys,

i have a service with more characteristics and more states. Not every characteristic should be available in each state. Thus there are services which are just allowed in one specific state.

If a device wants to write the ... (more)

612
views
2
votes
1
answer
Last activity 2014-09-25 15:44:24 +0100 by Petter Myhre flag of Norway

storing a big array in the flash memory [closed]

Hi, i need to save an array of 50 kB on the nrf51822 flash. I only need to read the data stored in the array. I come from the PIC micro world where i simply need to initialize the array ... (more)

110
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no
votes
1
answer
Last activity 2014-09-25 14:47:58 +0100 by Stefan Birnir Sverrisson flag of Iceland

Minimum softdevice version from compiled binary [closed]

Hi,

I've written a nRF51 SWD-JTAG programmer.

I want to enable it to check for minimum softdevice version and error out if a too-old softdevice is found.

It is easy enough to read the softdevice version information from UICRs ... (more)

380
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1
vote
1
answer
Last activity 2014-09-25 14:19:10 +0100 by Stefan Birnir Sverrisson flag of Iceland

problem using timer interrupts with softdevice S310 v1.0.0 [closed]

Hello to all,

Since a couple of weeks I have a problem in a program which consist of three parts:

1.- a Timer to make a pulse train by interrupts 2.- a program to control a LCD display 3.- a ... (more)

165
views
no
votes
1
answer
Last activity 2014-09-25 14:18:05 +0100 by Asbjørn flag of Norway

device to several host

I want to communicate four same devices with different hosts. i know that one host can communicate to seven devices and also a device is able to speak different hosts . i want that different hosts communicate with the same four ... (more)

252
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no
votes
1
answer
Last activity 2014-09-25 14:00:52 +0100 by Asbjørn flag of Norway

ble_app_uart example only partially working

Thanks for the response. As a test, I loaded the same code onto a PCA10004 and it seems to work as you described. A breakpoint at 217 does get triggered when it receives data. So, I guess there is something ... (more)

528
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2
votes
2
answers
Last activity 2014-09-25 13:50:29 +0100 by Stefan Birnir Sverrisson flag of Iceland

is it possible to use the micro esb library with the soft device running?

I have been perusing the source to micro-esb, and it appears that it wants exclusive access to the NRF_RADIO interrupt(RADIO_IRQHandler) and things are designed so that only one can operate at a time. Is that correct?

329
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no
votes
2
answers
Last activity 2014-09-25 09:59:54 +0100 by DiamondS

S130 Device Manager [closed]

Is there available device manager for S130 or just i should wait for final release? Or is it possible to implement from S120 example?

152
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no
votes
1
answer
Last activity 2014-09-25 09:32:06 +0100 by Asbjørn flag of Norway

central issues connection

Hi everyone.

I am working with nRF51 to make two BLE device, One act as cetral and another as peripheral.

I have implemented almost functions that the two devices are required. bonding procedure and exchanging data work well.

Now, I ... (more)

148
views
2
votes
2
answers
Last activity 2014-09-25 09:24:20 +0100 by Asbjørn flag of Norway

silicon build revision on nrf51822-dk [closed]

Hi,

Do all NRF51822-DK (development kit) have the same silicon build revision? If not, which distributor should I approach for the latest revision and is there a specific product code that I can use while ordering the latest revision?

Regards, NK

70
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1
vote
1
answer
Last activity 2014-09-25 09:05:14 +0200 by Håkon Alseth

gzll_iar.a code-limited to 32k?

I have encountered a problem with the IAR linker where I run into a 32k code-limitaion, even though I have a licence with no limitations. According to IAR, the problem may be that the library gzll_iar.a is compiled in ... (more)

315
views
no
votes
2
answers
Last activity 2014-09-25 09:02:56 +0100 by Håkon Alseth

Linking ESB lib in IAR? [closed]

Hello.

I've tried linking the ESB library in IAR but I am still getting error. When link arm_lib.lib getting this error: Fatal Error[Li014]: error when reading "nrf_esb.o(esb_arm.lib)": Not an ELF file but when link ... (more)

58
views
no
votes
no
answers
Last activity 2014-09-25 02:11:40 +0100 by Sean

Mistake in nrfgo sdk [closed]

I downloaded the nrfgo Sdk for the nrf24lu and nrf24le. In the projects folder there are several examples, two of which are of interest. The first is entitled "bootloader_32K" and the second is "nr24flu1 gamepad". The problem is that the ... (more)

748
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11
votes
6
answers
Last activity 2014-09-24 21:15:08 +0100 by Paul Lagier

nRf51422 data rates

Hi, I'm having the purpose to use nRF51422 /ANT to connect a relatively data hungry ANT device. The nRf51422 specs expose three programmatically available data rates : 250 kbps, 1Mbps, 2 Mbps. I'm unable to find more details in ... (more)

147
views
5
votes
1
answer
Last activity 2014-09-24 20:57:42 +0100 by Vyacheslav Lebets flag of Russian Federation

MCP and indication [closed]

Hi all!

Can the master control panel automatically confirm indication from peer device?

Thank!

389
views
12
votes
1
answer
Last activity 2014-09-24 18:35:05 +0100 by mnhs

Baby steps for programming Nordic [closed]

Hi, I think getting started with the Nordic chips is not as easy as some others. I would like to know what are the first things that I need to run my code on a Nordic? Especially NRF9E5.

What is ... (more)

266
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no
votes
no
answers
Last activity 2014-09-24 15:51:00 +0100 by Lilligosi

keil Debugging bootloader [closed]

Hi.

I am trying to modify the bootloader example provided by nordic. I am able to compile/link my code and use nRFgo studio to run it, but for some reason I can not debug my application in Keil. It ... (more)

610
views
no
votes
1
answer
Last activity 2014-09-24 15:30:36 +0100 by Håkon Alseth

GPIOTE power

Before I call sd_power_system_off(), I do the following:

NRF_TWI0->ENABLE = 0; NRF_TWI1->ENABLE = 0; NRF_ADC->ENABLE = 0; NRF_SPI0->ENABLE = 0; NRF_UART0->ENABLE = 0;

How do I disable the GPIOTE module? There is no "ENABLE" or "POWER" field.

288
views
no
votes
1
answer
Last activity 2014-09-24 15:23:11 +0200 by mnhs

flash_page_erase fail on s110 [closed]

Hi

I using nRF51822 ble_app_uart project with softdevice 7.0.

I need to manage my internal flash memory map so i cannot use pstorage libarytest main.txt.

So i try to use flash_page_erase(addr) and received hardfault error

363
views
1
vote
1
answer
Last activity 2014-09-24 14:50:43 +0100 by Asbjørn flag of Norway

nRF51822 Smart Beacon Kit distance [closed]

Hi,

What is the typical range of operation that can be achieved by nRF51822 Bluetooth Smart Beacon Kit ? I know it depends on the Tx power, but can a range of approx 30ms be achieved using the beacon kit ?

Thanks

415
views
4
votes
1
answer
Last activity 2014-09-24 14:44:45 +0200 by Petter Myhre flag of Norway

Need help choosing between ANT/ANT+ and BLE [closed]

I need help choosing between 2 technologies above, my goal is to enable multiple (up to 20) devices exchange small amount of information (around 30 bytes) between each other, then, based on the received information, each device will act (by ... (more)

134
views
1
vote
1
answer
Last activity 2014-09-24 13:58:54 +0100 by Asbjørn flag of Norway

nRF8001: Number of packets per connection event [closed]

Hello

How many packets can the nRF8001 send in a single connection event? I have seen here, that it is possible to send up to 6 packets with the nRF51822 + Softdevice S110. But there was no mention of the nRF8001 ... (more)

2k
views
1
vote
3
answers
Last activity 2014-09-24 13:21:51 +0200 by Stefan Birnir Sverrisson flag of Iceland

PWM analyzer / Pulse counter [closed]

Is it possible to count pulses with the 51822 from an external device in the range of 250-15.000 pulses pr. second, while the CPU is powered down (softdevice sleep)?

I've had a look at the pwm_analyzer sample, which ... (more)

1k
views
7
votes
4
answers
Last activity 2014-09-24 11:55:48 +0200 by matija

nRF51822 and iOS8 [closed]

Hi, we've been using nRF51822 for developing application and iOS 7.x detect then just fine. Since I upgraded to iOS 8. Beacons are 'invisible' to our application. I was wondering is somebody else is experiencing the same problem ... (more)

975
views
3
votes
1
answer
Last activity 2014-09-24 11:26:27 +0100 by Asbjørn flag of Norway

Protect bootloader from overwrite/erase [closed]

I am using Nordics sample bootloader and I really want to make sure that given a freak accident in sending it the firmware or in the firmware code itself that the bootloader is never erased or overwritten. In its current ... (more)

238
views
4
votes
2
answers
Last activity 2014-09-24 11:01:06 +0100 by Nicole

S110 serialization based on Linux [closed]

Please,

We want to develop our BLE related application on PC and we find that "GAP/GATT driver for windows" is a good way to achieve that. While our system is based on Linux (Ubuntu 12.04) and currently the ... (more)

35
views
1
vote
1
answer
Last activity 2014-09-24 09:19:19 +0100 by Håkon Alseth

Is COB available on 51422?

Just exploring the lowest cost. I would think it is pretty hard to control the process on the RF side, but worth to ask :-)

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