add tagsu-avr-modem from Rakettitiede Oy

1 files changed, 24 insertions, 0 deletions

diff --git a/modem.h b/modem.h
new file mode 100644
index 0000000..7fa5211
--- /dev/null
+++ b/modem.h
@@ -0,0 +1,24 @@
+/* Name: modem.h
+ * Author: Jari Tulilahti
+ * Copyright: 2014 Rakettitiede Oy
+ * License: LGPLv3, see COPYING, and COPYING.LESSER -files for more info
+ */
+
+#pragma once
+
+#include <avr/interrupt.h>
+#include <stdlib.h>
+
+/* Modem ring buffer size must be power of 2 */
+#define MODEM_BUFFER_SIZE	4
+
+/* Modem defines */
+#define MODEM_SYNC_LEN		42
+#define MODEM_TIMER		TCNT1
+#define MODEM_PIN 		PCINT3
+#define MODEM_DDR		DDRB
+
+/* Public funtions */
+uint8_t modem_buffer_available();
+uint8_t modem_buffer_get();
+void modem_init();