topic MK22 CDC_MSC add in Kinetis Software Development Kit

MK22 CDC_MSC add

CCandido — Fri, 18 Aug 2017 19:10:37 GMT

Hi,

I tested example SDK2.2: usb_device_composite_cdc_msc_sdcard = ok

Comport Virtual and msc = ok

ARM: MK22

IDE: MCUExpresso.

now my question it: how to add function for: f_open, f_write, f_opendir,...file in card.

Do this function in the same project.

thanks,

Carlos.

Re: MK22 CDC_MSC add

danielchen — Wed, 23 Aug 2017 08:16:43 GMT

Hi Carlos:

Please refer to the usb_host_msd_fatfs demo, this application executes some FatFS APIs to test the attached device.

usb_examples\usb_host_msd_fatfs\freertos

Hope it helps.

Regards

Daniel

Re: MK22 CDC_MSC add

CCandido — Mon, 04 Sep 2017 14:28:06 GMT

Hi Daniel,

first excuse may take a long time to answer.

about (usb_examples \ usb_host_msd_fatfs \ frets) I saw but did not understand.
so I understand (CDC + MSC) that Host_PC has the driver (fsFAT) soon then I will need to put fsFAT + driver a solution type: MSC_ BUSY = TRUE.
and then initialise the disc + (read / write) close disc, MSC_BUSY = FALSE.
control returns to host_pc.
I'll test add (SDK_2.2_MK22 \ boards \ twrk21f120m \ driver_examples \ sdcard_fatfs).

thank you,

Carlos.