How to update fw via USB: Processor Expert Stack for USB and usage like a folder

[holyhope]

Hi to all, now I'm developing with K20  (MK20DN512VLL10 in LQFP 100-pin package) before i developed wit FRDM-K64

I heared that on K20 the USB stack will not be update and developed only with KSDK (for uP where KSDK is available).

What I want to do is the Firmware Update via USB flash drive. I have already do in some other application VIA SERIAL (RS232) MODE. What I never did in my past is usa an USB stack.

I have imported, with processor expert, the component "USB_LDD" , i try to add some other component (FSL_USB_MSD_host, FSL_USB_Mouse, FSL_USB_Keyboard, FSL_USB_CDC, USB_Host_CMX, USB_HID_CMX, USB_Config_CMX) but no one seems to be the correct.

What I need is something that allow my firmware to dected if a Memory-Stick is connected and route inside his memory. (The transfer of data is another big  progress and I need FileSystem and many other thing, for now I only want transfer small byte for example!)

Example: I want that the firmware give an event (like timer event in file Events.c) when a memory stick is connected and he can access to the file located in a folder like this "H:\ExampleFolder\ExampleFile.hex" and transfer the first 100 byte

What I must to do? i do not find no-one processr expert method that allow me to do this in USB_LDD and I not find example for my specific uP or other smilar uP that use ProcessorExpert components...!!!

Many thanks,

Max

[marek_neuzil]

Hello,

If you want to start a development of an application based on fsl_usb_.... components, you can use the Processor Expert Kinetis SDK USB Stack Integration User Guide that is available as a part of the help.

You can open the guide by the following way in KDS 2.0.0 (you must have KSDK 1.1.0 Eclipse Update installed):

- Open Component Library window and find fsl_usb_descriptors component.

- Open the context menu of this component (click by right button of the mouse) and select Help on Component item.

- In the Help window, open the fsl_usb_descriptions page

- The fsl_usb_descriptors help page (General Info tab) contains link to the user guide "USB stack Processor Expert integration documentation" at the bottom of the page.

Best Regards,

Marek Neuzil

[holyhope]

I really want to use SDK! But... I'm developing on MK20DN512VLL10 and SDK is not available ... When I developed for K64 I used SDK (Not for USB but for other driver, like serial com), now I can't...

there isn't any other solution without SDK?

edit: If is available, there isn't an .hex file that use the USB or a complete project that use USB? The first step is check if HW is OK, after that I can develop the USB

Thanks

Massimiliano

[marek_neuzil · Accepted solution]

Hello,

In your case, you must use Freescale USB Stack v 4.1.1 (PEx components). You can find instructions how to create an USB MSD Host application by using these components on web USB MSD Host for the Freedom Board | MCU on Eclipse

There are also used another Processor Expert components provided by Erich Styger, see ErichStyger/McuOnEclipse_PEx · GitHub

Best Regards,

Marek Neuzil

[holyhope]

Thanks, I will try two way; The first with PEx of mcuoneclipse the second the KSDK component developing on K60 instead K20 (my uP will be k20 but I set on PEx k60 for enable KSDK)