updated vga demos to use SerialUSB.end()

1 files changed, 6 insertions, 0 deletions

diff --git a/examples/vga-scope.cpp b/examples/vga-scope.cpp
index 3e7e75e..0265f9c 100644
--- a/examples/vga-scope.cpp
+++ b/examples/vga-scope.cpp
@@ -1,3 +1,6 @@
+// Low-level, non-wirish demonstration of VGA
+//
+// Connect a microphone or something less to ANALOG_PIN
 
 #include "wirish.h"
 
@@ -39,6 +42,9 @@ void setup()
     Serial2.begin(9600);
     Serial2.println("Video time...");
 
+    // This gets rid of the majority of the interrupt artifacts;
+    // a SysTick.end() is required as well
+    SerialUSB.end();
     
     digitalWrite(VGA_R, 0);
     digitalWrite(VGA_G, 0);