Where is k22f_usbkw37z_if_crc.bin?

[DefaultUser2]

According to the getting started guide, k22f_usbkw37z_if_crc.bin should be flashed to k22f before developing applications for USB-KW38. However, I cannot find the file anywhere and the Segger website does not provide such a file either. Where is k22f_usbkw37z_if_crc.bin?

[DanielRuvalcaba]

Hello

If you unzip the USB-KW38 SDK and you go to …/tools/wireless/binaries you’ll see the following files:

It seems that the file you are looking for is sniffer_usbkw38_k22f_0x8000.bin. Could you please try this one out?

I hope this helps, Daniel.

[DefaultUser2]

I just tried the file and it does not work. I think this file is intended for the "sniffer" application and not for flashing new firmware files for KW38/KW37. This file is also mentioned verbatim in the started guide for "Flashing USB-KW38 as sniffer" (https://www.nxp.com/document/guide/getting-started-with-the-usb-kw38:GS-USB-KW38, section 2.4 in the "USB-KW38 Sniffer" tab) so I believe it is for sniffer only.

I also verified this using another method. For other Kinetis boards, if a working OpenSDA is loaded into the K22f, the USB descriptor is VID=1366, PID=1015 (Product: J-Link, Manufacturer: SEGGER). On the other hand, flashing this file into K22f gets VID=1fc9, PID=0300 (Product: KINETIS VIRTUAL COM, Manufacturer: NXP SEMICONDUCTORS).

[DanielRuvalcaba · Accepted solution]

Hi,

Could you please take a look to this thread? It seems that this is the way to solve your problem.
Please let me know If it works for you.

Best regards, Daniel.

[DefaultUser2]

Okay, that works. Thank you