1 files changed, 66 insertions, 0 deletions
diff --git a/examples/qa-slave-shield.cpp b/examples/qa-slave-shield.cpp
new file mode 100644
index 0000000..ec25e49
--- /dev/null
+++ b/examples/qa-slave-shield.cpp
@@ -0,0 +1,66 @@
+// Slave mode for Quality Assurance test
+
+#include <wirish/wirish.h>
+
+#define INTER_TOGGLE_DELAY_NORMAL 5
+#define INTER_TOGGLE_DELAY_SLOW   80
+
+void interToggleDelay(void);
+
+void setup() {
+    pinMode(BOARD_LED_PIN, OUTPUT);
+    pinMode(BOARD_BUTTON_PIN, INPUT);
+
+    // All unused pins start out low.
+    for (int i = 0; i < BOARD_NR_GPIO_PINS; i++) {
+        if (boardUsesPin(i))
+            continue;
+        pinMode(i, OUTPUT);
+        digitalWrite(i, LOW);
+    }
+    SerialUSB.println("OK, starting...");
+}
+
+void loop() {
+    toggleLED();
+    delay(100);
+    toggleLED();
+
+    for (int i = 0; i < BOARD_NR_GPIO_PINS; i++) {
+        if (boardUsesPin(i))
+            continue;
+
+        // Bring just this pin high.
+        digitalWrite(i, HIGH);
+        // Give the master time to detect if any other pins also went high.
+        interToggleDelay();
+        // Bring this pin back low again; all pins should now be low.
+        digitalWrite(i, LOW);
+        // Give the master time to detect if any pins are still high.
+        interToggleDelay();
+    }
+}
+
+void interToggleDelay(void) {
+    if (digitalRead(BOARD_BUTTON_PIN)) { // don't pay the debouncing time
+        delay(INTER_TOGGLE_DELAY_SLOW);
+    } else {
+        delay(INTER_TOGGLE_DELAY_NORMAL);
+    }
+ }
+
+// Force init to be called *first*, i.e. before static object allocation.
+// Otherwise, statically allocated objects that need libmaple may fail.
+__attribute__((constructor)) void premain() {
+    init();
+}
+
+int main(void) {
+    setup();
+
+    while (true) {
+        loop();
+    }
+    return 0;
+}
+