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@@ -11,11 +11,6 @@
 The comparator is a single-stage regenerative comparator, with a MOM array 
 for trimming ADC offset. 
 
-## Simulation
-
-The simulation is carried out using ngspice using the mixed-mode xspice capabilities.
-The digital section is synthesized using yosys that can then be bridged to/from the
-analog section.
 
 ## Layout
 
@@ -23,4 +18,22 @@
 connection of the design is done using klayout.
 
 
-![alt text](https://github.com/chrische-xx/caravel_user_project_analog/blob/main/docs/layout.png)
+![layout](https://github.com/chrische-xx/caravel_user_project_analog/blob/main/docs/layout.png)
+
+
+## Simulation
+
+The simulation is carried out using ngspice using the mixed-mode xspice capabilities.
+The digital section is synthesized using yosys that can then be bridged to/from the
+analog section.
+
+The Schematics are created using xschem, which also serves as the simulation framework.
+![testbench](https://github.com/chrische-xx/caravel_user_project_analog/blob/main/docs/pictures/xschem.png)
+
+The simulation output can then be viewed in both analog and digital domain.
+
+Digital waveforms displayed using GTKWave
+![gtkwave](https://github.com/chrische-xx/caravel_user_project_analog/blob/main/docs/pictures/gtkwave.png)
+
+Analog waveforms displayed using Gnuplot in interactive mode.
+![gtkwave](https://github.com/chrische-xx/caravel_user_project_analog/blob/main/docs/pictures/gnuplot.png)