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c8051f120 jtag connection
Hi All,
I'm using the SiLabs C8051F120 in a new design. I need to be sure of the following:
1) At manufacture time, the firmware will be injected to the chip via JTAG programmer.
2) Flash READ operation is DISABLED by setting the READ security bits if attempted via JTAG connection. This will protect the firmware from being read back.
But, i also need the user to be able to upgrade the firmware through the UART port via my bootloader program.
Is it possible to disable reading the firmware via JTAG AND enable writing the Flash via my bootloader?
I mean, are these two design constrains applicable at the same time?
please comment.
Hi All,
I'm using the SiLabs C8051F120 in a new design. I need to be sure of the following:
1) At manufacture time, the firmware will be injected to the chip via JTAG programmer.
2) Flash READ operation is DISABLED by setting the READ security bits if attempted via JTAG connection. This will protect the firmware from being read back.
But, i also need the user to be able to upgrade the firmware through the UART port via my bootloader program.
Is it possible to disable reading the firmware via JTAG AND enable writing the Flash via my bootloader?
I mean, are these two design constrains applicable at the same time?
please comment.