1 files changed, 20 insertions, 0 deletions
diff --git a/examples/spiblink/master.c b/examples/spiblink/master.c
new file mode 100644
index 0000000..267d7b2
--- /dev/null
+++ b/examples/spiblink/master.c
@@ -0,0 +1,20 @@
+#include <avr/io.h>
+#include <util/delay.h>
+#include "../../spi.h"
+
+int main() {
+    DDRB |= _BV(DDB1) | _BV(DDB2);
+    PORTC |= _BV(PORTC1);
+    spi_init(SPI_MODE_MASTER);
+    SREG |= _BV(7);
+    while (1) {
+        if (PINC & _BV(PINC1)) {
+            PORTB &= ~_BV(PORTB1);
+        } else {
+            PORTB |= _BV(PORTB1);
+        }
+        PORTB &= ~_BV(PORTB2);
+        spi_send(!(PINC & _BV(PINC1)));
+        PORTB |= _BV(PORTB2);
+    }
+}