loading data from file in nrf51 dk

[saiteja]

Hi,

I am working on adc module of nrf51,through adc i am taking data and storing it in array.now i have to crossexamine this adc data with the prestored data and have to predict some result.

Q.) the prestored data is saved in a file(assume in .csv file),if I am loading data from this file using fstream into an object of library I am using,then it is not working,because files are not handled in DK. MY question is : how can i load that prestored data into object of library i am using.

more clearly how i can load data at the run time from that specific file.

[bjorn-spockeli]

I think that you will have to send it over one of the nRF51's serial interfaces, e.g. the UART.

[saiteja]

I am not sure if you got the question. I want file contents (i.e. x number of values stored in file) to be loaded in an object (like array), something like Firmware reading a file that is in Flash.

Now I have two questions :

1. How do I flash a file along with Firmware on nRF51 Processor (for e.g. It can be .txt file or some format that Firmware can understand)?

2. Once the file is flashed, Can I modify the contents of that file using Firmware? If yes, How can we do it?

[bjorn-spockeli]

I would include the file content in the firmware and then use one of our flash libraries to read and modify the content. Depending on which SDK you're using you can either use the Persistant Storage Manager module (SDK v9 or older) or the Flash Data Storage module(SDK v11 or SDK v12).

[saiteja]

I am using sdk v11, Can you redirect me to an example code that can be used as a reference to develop my application.

[bjorn-spockeli]

There isn't a pure FDS example in the SDK, but the FDS module is used by the Peer Manager in many examples, e.g. ble_app_proximity. You can also take a look at the usage example in the documentation.