set_block_options

Description

This command enables you to override the compile option for placement or routing conflicts for an instance of a block

set_block_options -inst_name instance_name -placement_conflicts value -routing_conflicts value

Arguments

Parameter	Description
`-inst_name instance_name`	Specifies the name of the instance to move. If you do not know the name of the instance, run a Block report (Design > Reports > Block > Interface) or look at the names shown in the Block tab. For more information, see Chip Planner User Guide.
`-placement_conflicts value`	Specifies what to do when the software encounters a placement conflict. The acceptable values for this argument are: `error` - Compile errors out if any instance from a Designer block becomes unplaced or its routing is deleted. This is the default compile option. `resolve` - If some instances get unplaced for any reason, the non conflicting elements remaining are also unplaced. Basically, if there are any conflicts, nothing from the block is kept. `keep` - If some instances get unplaced for any reason, the non conflicting elements remaining are preserved but not locked. Therefore, the placer can move them into another location if necessary. `lock` - If some instances get unplaced for any reason, the non conflicting elements remaining are preserved and locked. `discard` - Discards any placement from the block, even if there are no conflicts.
`-routing_conflicts value`	Specifies what to do when the software encounters a routing conflict. The acceptable values for this argument are: `error` - Compile errors out if any route in any preserved net from a Designer block is deleted. `resolve` - If a route is removed from a net for any reason, the routing for the non- conflicting nets is also deleted. Basically, if there are any conflicts, no routes from the block are kept. `keep` - If a route is removed from a net for any reason, the routing for the non- conflicting nets is kept unlocked. Therefore, the router can re-route these nets. `lock` - If routing is removed from a net for any reason, the routing for the non- conflicting nets is kept as locked, and the router will not change them. This is the default compile option. `discard` - Discards any routing from the block, even if there are no conflicts.

Exceptions

You must import this PDC command as an NDC file.
If placement is discarded, the routing is automatically discarded too.

Example

The following example moves the entire block (instance name instA) 12 columns to the right and 3 rows up.

move_block -inst_name instA -right 12 -up 3 -non_logic move

The following example makes the designer software display an error if any instance from a block becomes unplaced or the routing is deleted.

set_block_options -inst_name instA -placement_conflicts ERROR -routing_conflicts ERROR

Supported Families

Supported Families	Supported Versions
PolarFire FPGAs	v12.4+