work on ci flow

Author: mattvenn

.github/workflows/test.yaml

@@ -0,0 +1,32 @@
+name: Run simulate-gate check
+
+on:
+  push:
+  workflow_dispatch:
+
+jobs:
+  simulate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout your repository
+        uses: actions/checkout@v4
+
+      - name: Pull Docker image
+        run: docker pull hpretl/iic-osic-tools
+
+      - name: Clone simulate-gate repo
+        run: git clone --branch nand-ci https://github.com/mattvenn/simulate-gate.git
+
+      - name: Run make check inside Docker
+        run: |
+          docker run --rm \
+            -v ${{ github.workspace }}:/work \
+            -w /work/simulate-gate \
+            hpretl/iic-osic-tools \
+            make check
+
+      - name: Upload nand.png as artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: nand-image
+          path: simulate-gate/nand.png

Makefile

@@ -3,6 +3,9 @@ all: sim
 show_cells:
 	summary.py --show-sky130
 
+check:
+	ngspice ci.spice
+
 sim: simulation.spice
 	# run the simulation
 	ngspice $^

ci.spice

@@ -0,0 +1,34 @@
+Standard cell Simulation
+* this file edited to remove everything not in tt lib
+.lib "/foss/pdks/sky130A/libs.tech/ngspice/sky130.lib.spice" tt
+
+
+* include the standard cells
+.include "./sky130_fd_sc_hd.spice"
+
+* instantiate the cell - adjust this to match your standard cell
+Xcell A B VGND VGND VPWR VPWR Y sky130_fd_sc_hd__nand2_1
+
+* set gnd and power
+Vgnd VGND 0 0
+Vdd VPWR VGND 1.8
+
+* create pulse for A and B
+* parameters are: initial value, pulsed value, delay time, rise time, fall time, pulse width, period
+Va A VGND pulse(0 1.8 1n   10p 10p 1n 2n)
+Vb B VGND pulse(0 1.8 1.5n 10p 10p 1n 2n)
+
+* setup the transient analysis
+.tran 10p 3n 0
+
+.control
+run
+set color0 = white
+set color1 = black
+set hcopypscolor        ; enable color in PostScript
+set hcopydev=png        ; output format is PNG
+set hcopyfont=Arial     ; optional: change font
+hardcopy nand.png A B Y
+.endc
+
+.end