I'm using LM3S6911 chip and would like to protect the firmware by
disabling debugging interface. I have found a discussion about this on
TI forum http://e2e.ti.com/f/471/p/45944/159065.aspx#159065%22
Unfortunately issuing these commands via openocd didn't disable JTAG:

mww 0x400fd004 0xFFFFFFFD (also tried 0xFFFFFFFC and 0x0)
mww 0x400fd000 0x75100000
mww 0x400fd008 0xA4420008

All the examples in the thread were for programs running on the device.

Am I missing something?

Regards,
Yegor
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