Import tcl-script to Quartus

Then you need to do a series of actions, which I described in my message with screenshot. When changing the structure of one of the area, you will get a fitter error

Hi,

I checked the cells in Region_0 and Region_1; all of them are in Arithmetic operation mode. May I know in which module you modify the cell?

Thanks.

Hi,

For example, the problem occurs after deleting the last cell in region 0, and the first cell in region 1. I want to connect them directly through carry chain. I guess the problem is not with LogicLock itself, but with the principles of the LE structure.

Hi,

Can you share how do you perform the below changes steps by steps in details including the cell name, signal name and node name?

I need each adder to be connected via Cin / Cout carry chains and not through Combout / DataABCD.

As a result of the corrections in the Resource Property Editor, I delete the LEs that work in normal mode and connect each LAB through the carry chains.

Thanks.

Hi,

1) I delete the last LE from Region0 "result_int[15]~30"

2) I delete the first LE from Region1 "result_int[0]~1"

3) I connect the COUT of the penultimate LE from Region0 "result_int[14]~29" to the CIN of the second LE from Region1 "result_int[1]~3"

As a result, I want to get two adders connected only by a carry chain

To do the above operations, you can run the updated script.

Hi,

Yes. You are correct. The logic lock region assignments are removed when the nodes in a carry chain assigned to a logic lock region is assigned to some of the nodes in a carry chain in another location. To place the carry chain correctly, the Fitter removed the Logic Lock region assignments on the nodes in the carry chain.

Thanks.