From bab75a6068ab0a64fe22395ad11efafccbf0d842 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= <cynerd@email.cz>
Date: Sun, 11 Oct 2015 13:06:28 +0200
Subject: Implement SPI and remove files

---
 examples/spiblink/slave.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 examples/spiblink/slave.c

(limited to 'examples/spiblink/slave.c')

diff --git a/examples/spiblink/slave.c b/examples/spiblink/slave.c
new file mode 100644
index 0000000..cf14408
--- /dev/null
+++ b/examples/spiblink/slave.c
@@ -0,0 +1,21 @@
+#include <avr/io.h>
+#include <util/delay.h>
+#include "../../spi.h"
+
+void receive(uint8_t data);
+
+int main() {
+    DDRB |= _BV(DDB1);
+    spi_receive = receive;
+    spi_init(SPI_MODE_SLAVE);
+    SREG |= _BV(7);
+    while (1) {
+    }
+}
+
+void receive(uint8_t data) {
+    if (data)
+        PORTB |= _BV(PORTB1);
+    else
+        PORTB &= ~_BV(PORTB1);
+}
-- 
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