Getting started with MBN52832 BLE Module

RE: Getting started with MBN52832 BLE Module

Simonr — Tue, 21 Apr 2020 07:07:02 GMT

1. The maximum tested and confirmed UART baud rate is 1M.

2. The SPI on the nRF52832 supports up to 8Mhz, while the nRF52833 and nRF52840 have one High-speed SPI supporting up to 32MHz transfers. You can check out the formula to calculate baud rates in this thread (same formula for SPI and UART).

3. Please create a new ticket regarding the PC app development, as we try to keep each DevZone ticket to one subject each. That way it will be easier for people with the same problem in the future to find the relevant thread, and an expert on the matter will be assigned to the relevant case, as everyone doesn't know everything, unfortunately.

4. The nRF52840 Dongle is the only Dongle Nordic provides, and it will be the only one that is compatible with I.E. the nRFConnect for Desktop BLE app, but if you're going to make your own PC or mobile application you should be able to use any of the third-party modules meeting your requirements as well. A number of them should be enclosed and support COM-ports I believe.

Best regards,

Simon

RE: Getting started with MBN52832 BLE Module

Moshe Baker — Mon, 20 Apr 2020 13:46:05 GMT

Another question: Do we need to use this specific dongle or can we use any BLE dongle exposing a COM port? We are looking for a "closed" dongle product.

RE: Getting started with MBN52832 BLE Module

Moshe Baker — Mon, 20 Apr 2020 13:36:43 GMT

Another question: For developing the PC app side, assume we are using the nRF52840-dongle you recommended above, where can I find a code example in C# for doing this, implementing the NUS profile? I see there is JS/Node.js code of nrf-connect, but this is somewhat distant from our .NET environment.

Also i see in the Android app - nRF Toolbox - there is a UART app. So basically I'm looking for an equivalent C#/Windows code sample.

Thanks!

RE: Getting started with MBN52832 BLE Module

Moshe Baker — Mon, 20 Apr 2020 12:02:34 GMT

I see in the code the maximum UART BAUD rate is 1Mb - UART_BAUDRATE_BAUDRATE_Baud1M.

I thought UART could do more. We need the physical line to be faster than the BLE. In this case there are the same. Can we make the UART baud rate faster? What is the maximum SPI rate supported?

RE: Getting started with MBN52832 BLE Module

Moshe Baker — Tue, 07 Apr 2020 12:44:41 GMT

OK thanks

RE: Getting started with MBN52832 BLE Module

Simonr — Tue, 07 Apr 2020 06:57:23 GMT

Okay, sorry for the misunderstanding. No, we don't have an example that implements SPI and BLE like the ble_app_uart example. If you'd like something like that I suggest implementing SPI instead of UART in the ble_app_uart example. Keep in mind that the SPIS and SPI examples are located in the peripheral folder and not the ble_peripheral as they do not have BLE included.

Best regards,

Simon

RE: Getting started with MBN52832 BLE Module

Moshe Baker — Tue, 07 Apr 2020 06:32:00 GMT

hi,

I Cannot find this folder in the zip file. I'm looking at "DeviceDownload.zip\nRF5SDK160098a08e2.zip".

Also I think you misunderstood. I'm looking for an existing hex file which listens on SPI and sends over BLE, similar to the ble_app_uart provided by Jay above.

RE: Getting started with MBN52832 BLE Module

Simonr — Tue, 07 Apr 2020 06:15:30 GMT

Yes, we have example .hex files for SPI examples as well. They can be located in the following paths: <InstallFolder>\examples\peripheral\spis & <InstallFolder>\examples\peripheral\spi. Please check out the API for SPI and UART over on our Infocenter.

Best regards,

Simon

RE: Getting started with MBN52832 BLE Module

Moshe Baker — Mon, 06 Apr 2020 17:05:52 GMT

Thanks!

Is there a similar hex for SPI?

Where is the interface protocol/commands to use via UART or SPI documented?

RE: Getting started with MBN52832 BLE Module

Jay Tyzzer — Mon, 06 Apr 2020 16:50:22 GMT

Hi Moshe,

I suggest using the Segger Embedded Studio. It is free to all designers that are using Nordic product. you can download it from their website

From the Nordic website:

Download the nRF Connect for desk top

Download the Command line tool

Download SDK16 zip file and unzip it wherever you want.

There is a BLE UART example in SDK 16. https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/ble_sdk_app_nus_eval.html.

You will need the Murata board programmed up with the Hex file for the UART emulation over BLE found in the SDK. There is a precompiled hex file that is used on the Nordic nRF52-DK development Kit.

Your drive:\your directory\examples\ble_peripheral\ble_app_uart\hex

Use the ble_app_uart_pca1040_s132.h file.

It uses the UART lines called out on our dev kit. If Murata has used the same GPIO for UART then you can use the stock hex file. If not you will need to modify the pca10040.h file to reflect the changes.

I suggest that you also acquire a nRF52840-dongle for u with nRFconnect. It is a inexpensive item ($10.00) and you can use it with some of the utilities in nRF Connect such as a RSSI sniffer and also as a central you can communicate with the Murata board. You can purchase it from one of Nordics authorized distributors. Symmetry, Arrow, Avnet, DigiKey, Mouser.

Good luck.