UE TOOLS. Placement/Routage. Jean-Paul CHAPUT. SESI. UE TOOLS Placement/Routage. 1 / 21

Transcription

1 UE TOOLS Placement/Routage Jean-Paul CHAPUT SESI UE TOOLS Placement/Routage. 1 / 21

2 Contexte Le Flot de Conception 1. Spécification comportementale 2. Synthèse RTL. 3. Placement & Routage. UE TOOLS Placement/Routage i. 2 / 21

3 Contexte Objectif/Circuit Complet UE TOOLS Placement/Routage i. 3 / 21

4 Contexte Le Coeur cout b(0:3) s(0:3) sel a(0:3) ck UE TOOLS Placement/Routage i. 4 / 21

5 Contexte Flot de Conception Contrôle.fsm SYF na2_x4.ap na2_x4.vbe.vbe SxLib boom/boog.vst UE TOOLS Placement/Routage i. 5 / 21

6 Contexte Les Différentes facettes d une Porte: Vues i0 i1 nq ENTITY na2_x4 IS PORT ( i0 : in BIT; i1 : in BIT; nq : out BIT; vdd : in BIT; vss : in BIT ); END na2_x4; ARCHITECTURE vbe OF na2_x4 IS BEGIN ASSERT ((vdd and not (vss)) = 1 ) REPORT "power supply is missing on na2_x4" SEVERITY WARNING; nq <= not ((i0 and i1)) after 1200 ps; END; Icône Comportementale Layout UE TOOLS Placement/Routage i. 6 / 21

7 Contexte Transformation de la netlist cin cin a b sout a b xr2 xr2 sout a2 a2 cout cout o2 UE TOOLS Placement/Routage i. 7 / 21

8 Placement Placement/Glue logique 1 UE TOOLS Placement/Routage i. 8 / 21

9 Placement Placement/Glue logique 2 vss vdd 50 x50 vss vdd vss x5 x5 UE TOOLS Placement/Routage i. 9 / 21

10 Placement Placement/Glue logique 3 UE TOOLS Placement/Routage i. 10 / 21

11 Placement Placement/Chemin de données 1.fsm.py SYF na2_x4.ap na2_x4.vbe.vbe Stratus Generateurs DpSxlib SxLib boom/boog.vst.ap.vst UE TOOLS Placement/Routage i. 11 / 21

12 Placement Placement/Chemin de données b1 b O def Netlist ( self ) : # Create both the "sff_4bits" # netlist (.vst) and placement (.ap). Generate ( "DpgenSff", "sff_4bits", param = { nbit : 4, physical : True} ) # [...] for i in range ( 16 ) : # Instanciate Register part. self.ram_reg[i] = Inst ( "sff_4bits", "ram_reg%ld" % i, map = { wen : self.b_w[i], ck : self.ram_ck[i], i0 : ram_d, q : ram_q[i], vdd : self.vdd, vss : self.vss } ) # [...] 0 sff_4bits UE TOOLS Placement/Routage i. 12 / 21

13 Placement Placement/Chemin de données 3 def Layout (self): for i in range ( 8 ) : if i == 0 : Place ( self.ram_reg[i], NOSYM, XY ( 0, 0 ) ) else : PlaceRight ( self.ram_reg[i], NOSYM ) PlaceRight ( self.ram_ntsa[i], NOSYM ) PlaceRight ( self.ram_ntsb[i], NOSYM ) for i in range ( 8, 16 ) : if i == 8 : Place ( self.ram_reg[i], NOSYM, XY ( 0, 300 ) ) else : PlaceRight ( self.ram_reg[i], NOSYM ) PlaceRight ( self.ram_ntsa[i], NOSYM ) PlaceRight ( self.ram_ntsb[i], NOSYM ) SetRefIns ( self.ram_reg[8] ) PlaceTop ( self.inv_ra, NOSYM ) PlaceRight ( self.inv_rb, NOSYM ) PlaceRight ( self.mx2_ops0, NOSYM ) UE TOOLS Placement/Routage i. 13 / 21

14 Placement Placement/Chemin de données b1 250 b O 0 ram_reg0 ram_nts0 ram_ntsb0 UE TOOLS Placement/Routage i. 14 / 21

15 Assemblage Assemblage/Le Coeur def Layout ( self ) : Place( self.dpt,nosym, XY(0,0) ) ResizeAb( 0, 0, 0, 200 ) AlimVerticalRail ( 80 ) AlimVerticalRail ( 160 ) AlimHorizontalRail( 20 ) AlimConnectors() return UE TOOLS Placement/Routage i. 15 / 21

16 Assemblage Assemblage/Le Chip 1 def Layout ( self ) : DefAb( XY(0, 0), XY(3000, 3000) ) self.view() PlaceCentric(self.Core ) self.view() PadNorth( self.p_i[3], self.p_i[4], self.p_i[5], self.p_b[0], [...] ) PadWest ( self.p_ck, self.p_d[0], self.p_d[1], self.p_d[2], [...] ) PadSouth( self.p_cin, self.p_np, self.p_ng, self.p_vssick0, [...] ) PadEast ( self.p_y[3], self.p_signe, self.p_noe, self.p_a[0], [...] ) PowerRing( 3 ) self.view() PlaceGlue( self.core ) self.view() RouteCk( self.ckc ) self.view() return UE TOOLS Placement/Routage i. 16 / 21

17 Assemblage Assemblage/Le Chip 2 UE TOOLS Placement/Routage i. 17 / 21

18 Routage Routage/GCells GCell(0,1) GCell(1,1) GCell(2,1) 10 Tracks / 50 lambdas GCell(0,0) GCell(1,0) GCell(2,0) 10 Tracks/50 lambdas UE TOOLS Placement/Routage i. 18 / 21

19 Routage Routage Global/Modélisation GCell(0,1) GCell(1,1) GCell(2,1) Tracks / 50 lambdas 10 GCell(0,0) GCell(1,0) 10 GCell(2,0) 10 Tracks/50 lambdas UE TOOLS Placement/Routage i. 19 / 21

20 Routage Routage Global/Fonctionnement Global Grid Net «a» Net «b» UE TOOLS Placement/Routage i. 20 / 21

21 Routage Routage Global/Surcharge UE TOOLS Placement/Routage i. 21 / 21