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Tuesday, September 17th 2013, 7:18am

Author: nathancsherman

[SOLVED] What does "unlock Kinetis" actually do?

OK so I almost have this working using Init Steps, but I cannot find a way to hold the nRST pin during connect in stand-alone mode. These init steps work fine in connected mode: Reset (3,0) // Reset hold during connection Delay (10) Write JTAG IR (0x0A) // DPACC Delay (10) Write JTAG DR (0x04, 3) // Set SELECT, Write Write JTAG DR (0x01000000, 32) // Set MDM-AP, Bank 0 Delay (100) Write JTAG IR (0x0B) // APACC Delay (10) Write JTAG DR (0x02, 3) // Write MDM-AP Control Write JTAG DR (0x01, 32) //...

Monday, September 16th 2013, 9:05pm

Author: nathancsherman

[SOLVED] What does "unlock Kinetis" actually do?

Agreed, normally the factory works with blank parts. However, the factory occasionally has to rework or reprogram a device that has already been programmed, especially during line bringup. However if they put a programmed device back on the line and attempt to flash it again (say, with newer FW or diagnostic FW), the Flasher does not or cannot unsecure it to erase it. Therefore I am looking for a way to modify the Flasher project to explicitly attempt to unsecure every chip prior to programming ...

Tuesday, September 10th 2013, 9:14pm

Author: nathancsherman

[SOLVED] What does "unlock Kinetis" actually do?

I have Kinetis K10s that need to be unsecured by a flasher. Our firmware image secures the chip but leaves the mass erase option available. The factory programming equipment does not have a data connection to the Flasher, just a button hooked up to the trigger input. I need the Flasher to unsecure, then mass erase every time it programs parts. Other posts in this forum says the Flasher should automatically unsecure, but it doesn't. I've tried setting AutoPerformsUnsecure in the .jflash project b...