Kyle Yancey / Mbed 2 deprecated SNES_Controller

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Dependencies:   mbed

Files at this revision

API Documentation at this revision

Revision 1:2a346daf070f, committed 2017-10-05

Comitter:
kyancey
Date:
Thu Oct 05 15:21:03 2017 +0000
Parent:
0:2af5c09cf1ee
Commit message:
Added some comments.

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/main.cpp	Thu Oct 05 14:43:56 2017 +0000
+++ b/main.cpp	Thu Oct 05 15:21:03 2017 +0000
@@ -22,11 +22,13 @@
     waitUntilHigh(Clock);
 }
 
+// The SNES expects unpressed buttons to have a high state.
+// 1 = unpressed, 0 = pressed
 void sendButtonsPressed(int b, int y, int select, int start,
                         int up, int down, int left, int right,
                         int a, int x, int l1, int r1)
 {
-    Data = 1;
+    Data = 1; // Seems sensible to start with data being high
     waitUntilHigh(Latch);
     waitUntilLow(Latch);
 
@@ -47,6 +49,7 @@
 int main()
 {
     while(1) {
+        // Repeatedly press A
         sendButtonsPressed(1, 1, 1, 1,      //b,y,select,start
                            1, 1, 1, 1,     //up,down,left,right
                            0, 1, 1, 1);    //a,x,l1,r1