0hmX/am3352

scripts/experiment-ddr-clock-e7-local.ts

/** Fixed clock branch-direction proposal plus one existing-winding E7 reroute. */
import{readFileSync,writeFileSync,mkdirSync}from'node:fs';import{resolve}from'node:path';import{objectHash as hash}from'./improve-ddr-a9-power-launches';import{supportCopperObstacles}from'./ddr-support-routing-context';import{explicitFacingViaContinuation}from'./ddr-facing-via-continuation';import{auditCompositeHostTopology}from'./ddr-composite-routing-context';import{auditRouteAngles}from'./check-route-angles';import{verifyDdrSystemCopper,auditDdrTraceJunctions}from'./check-ddr-system-copper';import{trunkHeadingOptions}from'./audit-ddr-trunk-directions';import{planDdrGroundAntipads}from'./ddr-ground-plane-antipads';
const parent=resolve('dist/ddr-twenty-one-power58-current'),out=resolve('dist/ddr-clock-e7-local'),read=(p:string)=>JSON.parse(readFileSync(p,'utf8')),c=read(parent+'/candidate.circuit.json'),h=read(parent+'/host-bundle.json'),input=read(parent+'/routing-input.json'),prior=read(parent+'/report.json'),preflight=read('dist/ddr-current-clock-preflight/report.json');if(hash(c)!==prior.candidateCircuitSha256||hash(c)!==preflight.parentCandidateSha256||h.traces.length!==21)throw Error('Parent mismatch');mkdirSync(out,{recursive:true});const write=(n:string,v:any)=>writeFileSync(out+'/'+n,JSON.stringify(v,null,2)+'\n')
const clocks=preflight.changes.map((r:any)=>{const after=structuredClone(r.after);after.route.at(-1).y-=.24;const end=after.route.at(-1),v=after.route.find((p:any)=>p.route_type==='via'),angle=(Math.atan2(v.y-end.y,v.x-end.x)*180/Math.PI+360)%360;return{...r,after,exitAfter:{...r.exitAfter,y:end.y},branchDegrees:angle,options:trunkHeadingOptions(angle)}});if(clocks.some((r:any)=>!r.options.some((o:any)=>o.incomingTravelDegrees===90&&o.outgoingTravelDegrees===90)))throw Error('Clock branch cannot support CPU-driven north trunk')
const clockIds=new Set(clocks.map((r:any)=>r.before.pcb_trace_id)),removedVias=c.filter((e:any)=>e.type==='pcb_via'&&clockIds.has(e.pcb_trace_id)),clockCandidate=c.filter((e:any)=>!removedVias.includes(e)).map((e:any)=>clocks.find((r:any)=>hash(r.before)===hash(e))?.after??clocks.find((r:any)=>hash(r.exitBefore)===hash(e))?.exitAfter??e),old=c.find((t:any)=>t.type==='pcb_trace'&&t.source_trace_id==='source_trace_530'),connection=input.connections.find((n:any)=>n.pointsToConnect.some((p:any)=>p.pointId==='pcb_breakout_point_352')),vi=old.route.findIndex((p:any)=>p.route_type==='via'),via=old.route[vi],source={...old.route[0],pointId:'pcb_breakout_point_352'},target={...connection.pointsToConnect[0]},hostIds=new Set(h.traces.map((t:any)=>t.pcb_trace_id)),fixed=clockCandidate.filter((e:any)=>!hostIds.has(e.pcb_trace_id)),obstacles=fixed.filter((e:any)=>['pcb_trace','pcb_via','pcb_smtpad'].includes(e.type)).flatMap((e:any)=>{const own=e.type==='pcb_trace'&&e.pcb_trace_id===old.pcb_trace_id,element=own?{...e,route:e.route.slice(0,vi+1)}:e,isOwn=own||(e.type==='pcb_via'&&e.pcb_trace_id===old.pcb_trace_id)||(e.type==='pcb_smtpad'&&e.pcb_port_id===old.route[0].start_pcb_port_id);return supportCopperObstacles([element]).map(o=>({...o,...(o.obstacleId.endsWith('_cap')||o.obstacleId.startsWith('fixed_via_')||e.shape==='circle'?{shape:'circle'}:{}),connectedTo:[isOwn?connection.name:`reserved:${o.obstacleId}`]}))}),sourceObstacle=obstacles.find((o:any)=>o.connectedTo.includes(connection.name)&&o.layers.includes('top')&&Math.abs(o.center.x-source.x)<=o.width/2+1e-7&&Math.abs(o.center.y-source.y)<=o.height/2+1e-7);if(!sourceObstacle)throw Error('Source obstacle missing')
const prepared:any={connection:{...connection,pointsToConnect:[source,target]},connectionIndex:0,sourcePoint:source,sourcePointIndex:0,sourceLayer:'top',sourceObstacle,targetPoint:target},bounds={minX:-18,maxX:target.x,minY:-13,maxY:0},bus:any={busId:'clock-E7',direction:'right',exitEdge:'right',termination:{type:'boundary'},connections:[prepared],componentId:'RAM0',componentObstacles:[sourceObstacle],componentBounds:bounds,sharedBoundary:bounds,xCoordinates:[via.x],yCoordinates:[via.y],pitchX:.8,pitchY:.8},params:any={srj:{...input,obstacles,traces:h.traces},bus,targetLayer:'inner4',terminals:[{connection:prepared,viaPoint:via,exitPoint:target}],acceptedPlans:[],layerNames:['top',...Array.from({length:8},(_,i)=>`inner${i+1}`),'bottom'],traceWidth:.12,viaDiameter:.4572,viaHoleDiameter:.254,clearance:.1016,allowBlindAndBuriedVias:false,allowSourceLayerRouting:true,gridStep:.1,maximumRouteOrderAttempts:1,maximumSearchStates:300000,heuristicWeight:1.2,sourceEscapePaths:new Map([[0,old.route.slice(0,vi).map((p:any)=>({x:p.x,y:p.y}))]])};write('input-evidence.json',{parentCandidateSha256:hash(c),clockChanges:clocks,removedVias,source,target,via,bounds,retainedHostsSha256:hash(h.traces)})
const{routeViaMinimalWindingAlternativesSteps}=await import(resolve('node_modules/@tscircuit/fanout-solver/lib/route-via-minimal-winding.ts')),steps=routeViaMinimalWindingAlternativesSteps(params,1),started=Date.now(),progress:any[]=[];let result:any[]=[],finished=false;while(Date.now()-started<55000){const n=steps.next();if(n.done){result=n.value;finished=true;break}progress.push({...n.value,visualization:undefined});write('progress.json',progress)}if(!finished)steps.return([])
let evidence:any={accepted:false,finished,alternatives:result.length};if(result[0]?.[0]?.trace){const after=explicitFacingViaContinuation(old,result[0][0].trace,'inner4').after,candidate=clockCandidate.map((e:any)=>hash(e)===hash(old)?after:e),fresh=[...h.traces,...clocks.map((r:any)=>r.after),after],ids=new Set(fresh.map((t:any)=>t.pcb_trace_id));let planes=c.filter((e:any)=>e.type==='pcb_copper_pour'),planeError=null;try{planes=planDdrGroundAntipads(planes,clocks.filter((r:any)=>Math.hypot(r.before.route[2].x-r.after.route[2].x,r.before.route[2].y-r.after.route[2].y)>1e-7).map((r:any)=>({...r.after.route[2],net:'CK'}))).planes}catch(error){planeError=String(error)}const final=candidate.map((e:any)=>planes.find((p:any)=>p.pcb_copper_pour_id===e.pcb_copper_pour_id)??e),connections=input.connections.map((n:any)=>({...n,pointsToConnect:n.pointsToConnect.map((p:any)=>{const r=clocks.find((r:any)=>r.exitBefore.pcb_breakout_point_id===p.pointId);return r?{...p,x:r.exitAfter.x,y:r.exitAfter.y,layer:r.exitAfter.layer}:p})})),physical=verifyDdrSystemCopper(final.filter((e:any)=>!ids.has(e.pcb_trace_id)),fresh,connections,{},100),angles=auditRouteAngles(final.filter((e:any)=>e.type==='pcb_trace')),joins=auditDdrTraceJunctions(final,connections),planar=(r:any[])=>r.slice(1).reduce((s:number,b:any,i:number)=>{const a=r[i];return s+(a.route_type==='wire'&&b.route_type==='wire'&&a.layer===b.layer?Math.hypot(a.x-b.x,a.y-b.y):0)},0),delta=planar(after.route)-planar(old.route);evidence={...evidence,planeError,physical,angles,joins,e7BeforeMm:planar(old.route),e7AfterMm:planar(after.route),requiredHostCompensationMm:-delta,clockStubMm:clocks.map((r:any)=>planar(r.after.route)),clockDirections:clocks.map((r:any)=>({angle:r.branchDegrees,options:r.options})),scope:'Local geometry proposal only. Host compensation, plane clearance/web, actual coupled trunk and complete board verification are required; no acceptance.'};write('e7-replacement.json',{before:old,after});write('candidate.diagnostic.circuit.json',final)}write('report.json',{...evidence,parentCandidateSha256:hash(c)});console.log(JSON.stringify({alternatives:result.length,finished,planeError:evidence.planeError,delta:evidence.e7AfterMm-evidence.e7BeforeMm,violations:evidence.physical?.violations.map((v:any)=>({layer:v.layer,gap:v.gapMm,a:v.aShape.traceId,b:v.bShape.traceId}))}));if(hash(read(parent+'/candidate.circuit.json'))!==hash(c))throw Error('Parent changed')