USB communication with Pc host

[Javier]

Hi,

In a project I'm going to need USB communication to update de application and read/write the application configuration from a PC (Java applicaton, JNA/JNI/Swig).

Also, I need, eventually, to use SDcard to logging, for example to store the sensors data

I'm configuring uTasker project to demo purpose with the FRDM-K64F.

Then, I should to use this define?

Code: [Select]

#define USE_USB_MSD

Best regards

[mark]

Javier

For USB device you need to enable "USB_INTERFACE"
"USE_USB_MSD" will then enable USB-MSD to SD card (or internal file system), in which case you will also need to enable "SDCARD_SUPPORT".
At the same time you can enable "USE_USB_CDC" to have also virtual COM, which is a general purpose bulk device as composite together with the USB-MSD which you may be able to use for other purposes.
"#define USB_CDC_COUNT             1" is the default for a single VCOM, but this can also be increased to get more such
The option "USB_SIMPLEX_ENDPOINTS" allows bulk endpoints to shared the same pipe for in and out directions and with this one USB-MSD and 6 VCOMs are possible on the Kinetis FS interface (without it is one USB-MSD and 4 VCOMs).
Possible you could alternatively use "USE_USB_HID_RAW" which is also quite a generic method for the configuration requirement.

Regards

Mark

[Javier]

Amazing.

Works pretty fine.

Code: [Select]

SD-card V2 - High Capacity                                                                                                                             
Disk D mounted
And open Nautilus to show the sdcard content.

Best regards