SLAU654E November   2015  – February 2019

 

  1.   MSP Flasher
    1.     Trademarks
    2. 1 Introduction
    3. 2 Compatibility
    4. 3 Triggers and Arguments
    5. 4 Exit Specifications
    6. 5 Firmware Update
    7. 6 Segment Erase
    8. 7 Example Cases
      1. 7.1 Loading and Executing Target Code From a TXT File
      2. 7.2 Reading Device Memory
      3. 7.3 Accessing a Device With a Device Activation Code
      4. 7.4 Securing the Target Device
      5. 7.5 Unlocking a Password-Protected Target Device
    9. 8 Using MSP Flasher on Unix
    10. 9 Error Codes
  2.   Revision History

7.5 Unlocking a Password-Protected Target Device

Newer MSP devicesfrom the FRxx families support a JTAG password lock mechanism that can be reversed by specifying a password (see the MSP430FR57xx family user's guide). This mechanism is not to be confused with the electronic fuse that permanently secures the JTAG interface.

To unlock a password-protected device, use the -p switch to provide the correct JTAG password (in hex format with a leading "0x"):

MSP430Flasher -n MSP430FR5739 -p 0x11111111
fig08_unlocking_password_protected.jpgFigure 7. Unlocking a Password-Protected Target Device