Does anybody have working example for K27 bootloader configuration area with changed USB strings?

mykhayloshcherb — Tue, 09 Jan 2018 14:56:53 GMT

I'v tried as shown in attachments but VID/PID are changed but strings are default

Re: Does anybody have working example for K27 bootloader configuration area with changed USB strings?

jorge_a_vazquez — Fri, 12 Jan 2018 22:00:03 GMT

Hi Mykhaylo Shcherbak

You cannot change the USB String with the Bootloader Configuration Area.

The problem is that in order to execute ROM bootloader, you need to reset the device, and by reset the USB doesn't have access to flash, because it is the bus master 3, and Flash Access Protection Register has "master 3 access protection" as 00.

So you need to grant flash access to USB with FMC->PFAPR, bus as you cannot modify the ROM bootloader, you are not able to modify the USB Strings.

Sorry for the inconveniences that this may cause you.

Best Regards

topic Does anybody have working example for K27 bootloader configuration area with changed USB strings? in MCU Bootloader

Does anybody have working example for K27 bootloader configuration area with changed USB strings?

Re: Does anybody have working example for K27 bootloader configuration area with changed USB strings?