File transfer

RE: File transfer

awneil — Fri, 07 Jun 2019 11:58:51 GMT

If you want to do file operations, you will need some sort of filesystem!

But CDC ACM is nothing to do with files.

https://en.wikipedia.org/wiki/USB_communications_device_class

RE: File transfer

rajis — Fri, 07 Jun 2019 11:44:26 GMT

ya yes.. I am using nrf52840 as central.

If i use CDC acm example ,it is necessary to use fatfs for file operations?

RE: File transfer

awneil — Fri, 07 Jun 2019 11:35:42 GMT

You've flagged this as nRF52810.

The nRF52810 has no USB peripheral.

If you want a USB connection from the PC to the nRF chip, then you will need an nRF52840.

RE: File transfer

rajis — Fri, 07 Jun 2019 11:21:14 GMT

If i try with USB CDC-acm example is this possible to read file from Jlink drive. or else only option is to use as USB mass storage

RE: File transfer

awneil — Fri, 07 Jun 2019 10:10:12 GMT

[quote userid="73301" url="~/f/nordic-q-a/48162/file-transfer/191589"]I have kept my file in Jlink CDC Drive [/quote]

The nRF chip has no access to that.

RE: File transfer

rajis — Fri, 07 Jun 2019 10:07:39 GMT

Hi I have referred the above example . I have kept my file in Jlink CDC Drive .If i configured fatfs for this before reading a file .i am getting below error .

Initializing disk 0 (QSPI)...
[00:00:00.000,000] <info> app: Mounting volume...

mount failed. Filesystem not found. Please format device.

Once I solve this only i can able to transfer file from central to peripheral .Please help me on this.

RE: File transfer

awneil — Tue, 04 Jun 2019 17:24:23 GMT

[quote userid="73301" url="~/f/nordic-q-a/48162/file-transfer"]nrf51 [/quote][quote userid="73301" url="~/f/nordic-q-a/48162/file-transfer"]NRF 15.0 SDK[/quote]

The last SDK with support for the nRF51 was 12.3, IIRC ...

RE: File transfer

awneil — Tue, 04 Jun 2019 17:23:05 GMT

As far as the nRF51 & nRF52 are concerned, it's just data.

You could look at the Nordic UART Service (NUS).

There's also an image transfer demo: https://github.com/NordicPlayground/nrf52-ble-image-transfer-demo