DEVZONE BLOG FEED

When designing a PCB with nRF51, nRF51822 or nRF51422, there are some rules that should be followed in order to get a good working radio/system, with a maximized range.General rule The RF part of the schematic and layout should be a copy of our reference design. It means that not only the component values, but also the geometry, relative placement of the components with respect to each other, and the lengths of the transmission lines should be the same as in our reference design. The reference design for ...

When using nRF8001 with an Arduino board, Atmel Studio is a good free tool to use for development of your firmware. The following video shows a procedure in Atmel Studio in order to enable debugging of Arduino code. It was created with Atmel Studio 6.1 and Visual Micro (Arduino plugin for Atmel Studio)...

Hi, guys. nRF51 IoT SDK is needed Raspberry Pi, so I make the VMware Player Image for Ubuntu 14.04.1 LTS 64bit(linux kernel update to 3.18.3). Even if don’t have Raspberry Pi, can use the 6lowpan!! And it’s easy to develop the linux 6lowpan kernel module by using the VM linux.VM Linux image and "How to" is my website, http://www.hirotakaster.com/weblog/6lowpan-ubuntu-vm-image/Glad I could be of someone help. ...

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Dears:I'm using nRF51822 with softdevice S110 . And I want to know, how can I switch the communication mode betwean BLE and 2.4 G ? If possible, could you provide me some reference materials? Many thanks! ...

Hi,I recently made some changes to the code and noticed the following errors for the first time.Error: L6406E: No space in execution regions with .ANY selector matching main.o(.data).Error: L6407E: Sections of aggregate size 0x20 bytes could not fit into .ANY selector(s).My understanding is that this is due to a small size of IRAM1 as described in the target options.I tried that and increased the size of IRAM1. The code compiles but when programmed onto an nRF51422 chip, the device doesn't turn on.Can som...

I have built a application with IAR, and made a hex file with Intel extended. It’s works fine with nRFgo Studio. But I got problems with dfu updating from my android. I hope the problems are the DAT-file. When I put the app-hexfile trough hex2bin and then crc, I get 0xFD66.So my dat file then looks like this. Is this right?ffff ffff ffff ffff 0200 4f00 5a00 66df...