diff --git a/.gitignore b/.gitignore
index 390a0a0..3c2a99b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,7 @@
 *-bak
+*.lst
 *.o
+*.bin
 *.DS_Store
 RaspberryPi/apple2driver/apple2driver
 RaspberryPi/Apple2-IO-RPi.log
diff --git a/RaspberryPiPico/CMakeLists.txt b/RaspberryPiPico/CMakeLists.txt
index e946a83..6ab7780 100644
--- a/RaspberryPiPico/CMakeLists.txt
+++ b/RaspberryPiPico/CMakeLists.txt
@@ -18,6 +18,14 @@ FetchContent_Declare(a2pico
         )
 FetchContent_MakeAvailable(a2pico)
 
+set_source_files_properties(incbin.S OBJECT_DEPENDS ../../Apple2/AT28C64B.bin)
+add_custom_command(
+        WORKING_DIRECTORY ../../Apple2
+        COMMAND ./assemble.sh 1
+        OUTPUT ../../Apple2/AT28C64B.bin
+        VERBATIM
+        )
+
 target_sources(${PROJECT_NAME} PRIVATE
         main.c
         board.c