add first main.c/.h to slave

firmware/slavechip/main.c

@@ -0,0 +1,22 @@
+#include "main.h"
+#include "spi.h"
+
+
+void hardinit() {
+  /* initializes the hardware */
+
+  sei();
+}
+
+void softinit() {
+}
+
+
+int __attribute__((noreturn)) main(void) {
+  hardinit();
+  softinit();
+
+  for(;;){
+  }
+}
+

firmware/slavechip/main.h

@@ -0,0 +1,14 @@
+#ifndef __MAIN_H
+#define __MAIN_H
+#include <stdint.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <avr/pgmspace.h>
+#include <avr/eeprom.h>
+#include <util/delay.h>
+#include <util/atomic.h>
+#include <stdio.h>
+
+#define SOFTTIMERNUMS 4
+
+#endif //__MAIN_H