ldvader
Newbie level 1
Hello,
In my design, I have a set of configuration registers that are read-only in runtime. When booting up, I'm going to use JTAG to write on those registers.
Design Compiler thinks these scannable registers as constant registers, as they receive no input signals. I thought DC would think the input from the scan chain is a valid input so leave the register intact, but it just removes all those registers.
Can anyone advise me how to achieve this 'runtime read-only registers initialized by JTAG'?
Thank you.
Brandon
In my design, I have a set of configuration registers that are read-only in runtime. When booting up, I'm going to use JTAG to write on those registers.
Design Compiler thinks these scannable registers as constant registers, as they receive no input signals. I thought DC would think the input from the scan chain is a valid input so leave the register intact, but it just removes all those registers.
Can anyone advise me how to achieve this 'runtime read-only registers initialized by JTAG'?
Thank you.
Brandon