diff --git a/Processors/pio_SPI.pio.h b/Processors/pio_SPI.pio.h
index 6aa724d..3d22a43 100644
--- a/Processors/pio_SPI.pio.h
+++ b/Processors/pio_SPI.pio.h
@@ -1,5 +1,6 @@
 // -------------------------------------------------- //
 // This file is autogenerated by pioasm; do not edit! //
+// 18 bit SPI - no auto colour conversion             //
 // -------------------------------------------------- //
 
 #pragma once