Add PWM_OPEN_DRAIN option to pinMode()

Allow for alternate function open drain output mode to be accessed through the wirish interface. This allows for open drain to be used on PWM pins.
leaflabs · Sep 22, 2010 · 943006d · 943006d
1 parent f2fd216
commit 943006d
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/wirish/io.h b/wirish/io.h
@@ -47,7 +47,8 @@ typedef enum WiringPinMode {
     INPUT_PULLUP,
     INPUT_PULLDOWN,
     INPUT_FLOATING,
-    PWM
+    PWM,
+    PWM_OPEN_DRAIN,
 } WiringPinMode;
 
 

diff --git a/wirish/wirish_digital.c b/wirish/wirish_digital.c
@@ -58,6 +58,9 @@ void pinMode(uint8 pin, WiringPinMode mode) {
     case PWM:
         outputMode = GPIO_MODE_AF_OUTPUT_PP;
         break;
+    case PWM_OPEN_DRAIN:
+        outputMode = GPIO_MODE_AF_OUTPUT_OD;
+        break;
     default:
         ASSERT(0);
         return;