HI, is there a way of getting the FRDM-KL27Z to enter the kboot.
From the KL27Z ref manual I thought it was holding the NMI /SW1 down after Reset, but I can't seem to get that to work.
thanks
Solved! Go to Solution.
Hello Neil Hancock:
Try entering the KBOOT USB HID mode with these steps:
1. Connect a USB cable from your PC to the J10 mini-USB connector on FRDM-K27Z.
2. Press and hold the reset button (SW2).
3. Press and hold the NMI button (SW1).
4. Release the Reset button (SW2).
Then you can also release the NMI button.
If you have not reprogrammed the default FOPT configuration in Flash, then with the steps above the KL27 should enumerate as USB HID device and stay in bootloader mode.
I hope this helps.
Regards!,
Jorge Gonzalez
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Hello Neil Hancock:
Try entering the KBOOT USB HID mode with these steps:
1. Connect a USB cable from your PC to the J10 mini-USB connector on FRDM-K27Z.
2. Press and hold the reset button (SW2).
3. Press and hold the NMI button (SW1).
4. Release the Reset button (SW2).
Then you can also release the NMI button.
If you have not reprogrammed the default FOPT configuration in Flash, then with the steps above the KL27 should enumerate as USB HID device and stay in bootloader mode.
I hope this helps.
Regards!,
Jorge Gonzalez
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------
Many thanks - that worked for me. I thought I had tried all those steps to begin with - and for some reason that time it didn't work.
But its done it nicely now, and responded to
Kboot\FSL_Kinetis_Bootloader_1_2_0\bin\win\blhost.exe -u -- get-property 17
Inject command 'get-property'
Response status = 0 (0x0) Success.
Response word 1 = 0 (0x0)
Flash Security State = UNSECURE
blhost.exe -u -- get-property 7
Inject command 'get-property'
Response status = 0 (0x0) Success.
Response word 1 = 7535 (0x1d6f)
Available Commands = flash-erase-all, flash-erase-region, read-memory, write-memory, flash-security-disable, get-property, execute, reset, set-property, flash-erase-all-unsecure
and kudos to the developers for adding a JSON option
blhost.exe -u -j -- get-property 7
{
"command" : "get-property",
"response" : [ 7535 ],
"status" : {
"description" : "0 (0x0) Success.",
"value" : 0
}
}