Composite wire indexing for programmable logic devices
View Patent ↗Various techniques are disclosed to identify composite wires from segmented wires of a programmable logic device (PLD). In one example, a method includes associating segmented wires of the PLD with a plurality of wire index values based on connections identified by interface templates. The method further includes identifying a plurality of composite wires according to the wire index values. Each composite wire comprises a set of the segmented wires associated with a corresponding one of the wire index values. The composite wires are adapted to interconnect programmable logic blocks of the PLD.
1. A computer-implemented method of referencing wires of a programmable logic device (PLD), the method comprising:
identifying in a computer a plurality of tiles within the PLD, wherein a tile corresponds to a tile template, the tile template including one or more programmable logic blocks, switches, and segmented wires;
selecting in the computer first and second adjacent tiles from the identified tiles;
selecting in the computer first and second tile templates corresponding to the first and second tiles;
comparing in the computer a segmented wire of the first tile template to a segmented wire of the second tile template to determine whether the segmented wires are connected; and
for a wire connection found between the first and second tile templates, creating in the computer an interface template and including in the interface template a reference to the wire connection.
2. The method of claim 1 , wherein the reference to the wire connection includes an ordered pair of the connected segmented wires.
3. The method of claim 1 including:
associating in the computer the connected segmented wires of the reference with a same wire index value.
4. The method of claim 3 including for each additional reference to a wire connection in the interface template:
incrementing the wire index value; and
associating in the computer the connected segmented wires of the reference with the incremented wire index value.
5. The method of claim 3 including:
setting in the computer a wire index value to a current value;
identifying in the computer the connected segmented wires having the current wire index value; and
creating in the computer a composite wire from the identified segmented wires.
6. The method of claim 5 including:
incrementing the current wire index value; and
repeating the identifying, creating and incrementing steps to create additional composite wires.
7. The method of claim 5 , wherein the setting step includes setting the wire index value to an initial value.
8. The method of claim 5 , wherein the composite wire is adapted to interconnect programmable logic blocks of the PLD.
9. The method of claim 5 including:
generating in the computer configuration data for the PLD, wherein the configuration data includes a reference to the composite wire.
10. A non-transient computer readable medium on which is stored a computer program that when executed by a computer performs a method of referencing wires of a programmable logic device (PLD), the method comprising:
identifying in a computer a plurality of tiles within the PLD, wherein a tile corresponds to a tile template, the tile template including one or more programmable logic blocks, switches, and segmented wires;
selecting in the computer first and second adjacent tiles from the identified tiles;
selecting in the computer first and second tile templates corresponding to the first and second tiles;
comparing in the computer a segmented wire of the first tile template to a segmented wire of the second tile template to determine whether the segmented wires are connected; and
for a wire connection found between the first and second tile templates, creating in the computer an interface template and including in the interface template a reference to the wire connection.
11. The computer readable medium of claim 10 , wherein the reference to the wire connection includes an ordered pair of the connected segmented wires.
12. The computer readable medium of claim 10 , wherein the method includes:
associating in the computer the connected segmented wires of the reference with a same wire index value.
13. The computer readable medium of claim 10 , wherein the method includes for each additional reference to a wire connection in the interface template:
incrementing the wire index value; and
associating in the computer the connected segmented wires of the reference with the incremented wire index value.
14. The computer readable medium of claim 10 , wherein the method includes:
setting in the computer a wire index value to a current value;
identifying in the computer the connected segmented wires having the current wire index value; and
creating in the computer a composite wire from the identified segmented wires.
15. The computer readable medium of claim 14 , wherein the method includes:
incrementing the current wire index value; and
repeating the identifying, creating and incrementing steps to create additional composite wires.
16. The computer-readable medium of claim 14 , wherein the setting step includes setting the wire index value to an initial value.
17. The computer readable medium of claim 14 , wherein the composite wire is adapted to interconnect programmable logic blocks of the PLD.
18. The computer readable medium of claim 14 , wherein the method includes:
generating in the computer configuration data for the PLD, wherein the configuration data includes a reference to the composite wire.