MCU firmware

RE: MCU firmware

Sigurd — Tue, 14 Aug 2018 07:17:31 GMT

The SDK comes in a .zip archive, so it's important that you extract the archive properly. You should also place the SDK folder close to root. e.g. C:\Nordic\nRF5_SDK_15.0.0_a53641a

If your having problems with Keil, I would like to recommend Segger Embeddded Studio. We have a basic getting started guide here, and a getting started youtube series.

RE: MCU firmware

Robertas — Tue, 14 Aug 2018 00:25:22 GMT

As i am using Keil uVision5 its comes with old softdevices and examples, i tried import examples from nrf5 sdk 15 with no luck, if is any modern way to use this examples without missing files and errors? i didnt find any options to import last versions of softdevice. Thanks

RE: MCU firmware

Sigurd — Thu, 09 Aug 2018 08:44:11 GMT

The nRF52832 is perfect for this.

First you will need to find or write some drivers to interface with the i2c sensor. If it’s a popular sensor, you might find some drivers online somewhere.

We have some I2C/TWI examples in the SDK, see this and this link.

We also have a SD card example. See this link.

The Glucose Application example in the SDK shows you how to implement passkey.

RE: MCU firmware

Robertas — Thu, 09 Aug 2018 08:15:34 GMT

Thanks, It's help me very much,

I have one more question:

I want use nrf52832 as MCU to collect data from Ic2 temperature sensors record to sd card and real time monitoring on tablet as well read sd card logging data by Bluetooth on tablet, can you point me if it's good idea to use this module as I tryed some examples and it's look I didn't find one of suitable with Bluetooth pin pairing, or if it's pairs without pin after unpairing device undiscovered til I reflash code to module, do you have any examples in mind which is good for this project or any advice, sorry for dump questions as I am new to this. Ex arduino user. Thanks

RE: MCU firmware

Sigurd — Fri, 03 Aug 2018 11:45:55 GMT

You will need to place the Segger J-Link MCU in bootloader mode in order to flash it.

It should then show up as a removable storage device:

Double click on BOOTLOADER, and drag and drop the firmware (found in step 4, called J-Link OB-SAM3U128-V2-NordicSemi 170724.bin) into the BOOTLOADER folder.

Wait a couple of seconds, and turn off/on the DK again, and the JLINK drive should appear:

I would recommend downloading SDK 15 from here, and use SES IDE.

Please take a look at the getting started guide found here.

RE: MCU firmware

Robertas — Fri, 03 Aug 2018 11:26:54 GMT

Can I use same file to flash virgin MCU?

Another issue is I have this board at device manager but j-link can't find any USB or com port, tryed different drivers including original, have checked with j-link config, arduino ide can see com port but crying about missing board

Thanks for your help

RE: MCU firmware

Sigurd — Fri, 03 Aug 2018 07:39:44 GMT

Hi,

Please go through the steps in this post. Step 4 in the post shows you how to reprogram the JLINK firmware.