CCS/MSP430F6723: How to unlock the security fuse

Thanks for reply.

It means, MSP430F6723 controller is one time locking system, we can not unlock it.

But I referred in MSP code protection features chapter "2.2.1 F5xx/F6xx Electronic Fuse Implementation"  To clear JTAG/SBW lock protection, the BSL can be used to clear the JTAG signatures to 00000000h.

This is worked or not can you tell me.

But how to access the BSL & get the password.

If you know the steps, please give me the steps for accessing the BSL.  

Thank for reply.

I will try to mass erase of a device using bsl_scripter.exe 

Steps as follows:

1) mass erase

2) RX password

3) RX_PASSWORD PASS.txt

Host : 80 01 00 15 64 a3 

resp: fail (ee)

I don't know why the response is fail and ack is also not proper.

In place of ACK its respond ee 

Any idea about resolving this issue.

Connection is like this 

1. BSL_TX (P3.0) --> JTAG pin no 12

2. BSL_RX (P3.1) --> JTAG pin no 14

3. GND --> JTAG pin no 9

4. VCC ---> JTAG pin no 4

5. TEST/SBWTCK --> JTAG pin no 7

6. RST/NMI/SBWTDIO --> JTAG pin no 1

Hi,

We are using MSP-FET430UIF for communication between PC & MSP with JTAG as well as SBW.

We want to check the BSL memory using bsl_scripter.exe

In MSP P3.0 (pin no 40) & P3.1 (pin no 50), we initialize alternate function i.e. BSL_TX & BSL_RX like this,

P3SEL |= BIT0 | BIT1; 

but MSP not respond proper ack.

Can you help me out to this problem.