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LPC29xx JTAG protection

Question asked by Fernando Theirs on May 2, 2018
Latest reply on May 3, 2018 by Fernando Theirs

Hi! I'm trying to activate  the JTAG security from my LPC29xx and I found here:  in page 481 an example but I doesn't work :/

Could someone help me or provide the sample code to activate the JTAG protection?


I have this part in my startup code:

SEC_DIS EQU 0xE0001B00
SEC_Value EQU 0x00 
LDR R1, =SEC_Value
STR R1, [R0, #0]


I read that I have to write 0x7FFFFFFF in some part of the flash but I cannot do it