Hi,
I am tring to use my EM-CC430F5137 and I keep on getting a message in the CCS the the security fuse is blown.
if I am unable to fix this, what is the return policy?
I found this in the manual
"The debugger reports that the device JTAG security fuse is blown. With current MSP-FET430PIF
and MSP430-FET430UIF JTAG interface tools, there is a weakness when adapting target boards that
are powered externally. This leads to an accidental fuse check in the MSP430 and results in the JTAG
security fuse being recognized as blown although it is not. This occurs for MSP-FET430PIF and MSPFET430UIF but is mainly seen on MSP-FET430UIF.
Workarounds:
• Connect the device RST/NMI pin to JTAG header (pin 11), MSP-FET430PIF and MSP-FET430UIF
interface tools are able to pull the RST line, this also resets the device internal fuse logic.
• Do not connect both VCC Tool (pin 2) and VCC Target (pin 4) of the JTAG header. Specify a value for
VCC in the debugger that is equal to the external supply voltage."
If II understand correctly this means I need to:
1. Remove jumper that connects pin 2 to pin 4 in JTAG
2. Place a wire jumber between JTAG pin 11 to P5.8
3. run debug in the CCS
Is that correct? this is not working!!
What am I doing wrong.
Could this really be an issue where the actual Fuse is burned, I had some soldering done on the board(due it work for a while after)
Regards,
Yaniv