From a109d4b7a1ebef3a889594485fe0ff5d6aa45455 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Sat, 7 May 2016 11:38:02 +0200
Subject: added serial arduino led example

---
 serial-arduino-led/Makefile               | 30 +++++++++++++
 serial-arduino-led/serial-arduino-led.cpp | 71 +++++++++++++++++++++++++++++++
 2 files changed, 101 insertions(+)
 create mode 100644 serial-arduino-led/Makefile
 create mode 100644 serial-arduino-led/serial-arduino-led.cpp

diff --git a/serial-arduino-led/Makefile b/serial-arduino-led/Makefile
new file mode 100644
index 0000000..0d48ab3
--- /dev/null
+++ b/serial-arduino-led/Makefile
@@ -0,0 +1,30 @@
+##
+##  spreadspace avr utils
+##
+##
+##  Copyright (C) 2013-2016 Christian Pointner <equinox@spreadspace.org>
+##
+##  This file is part of spreadspace avr utils.
+##
+##  spreadspace avr utils is free software: you can redistribute it and/or modify
+##  it under the terms of the GNU General Public License as published by
+##  the Free Software Foundation, either version 3 of the License, or
+##  any later version.
+##
+##  spreadspace avr utils is distributed in the hope that it will be useful,
+##  but WITHOUT ANY WARRANTY; without even the implied warranty of
+##  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+##  GNU General Public License for more details.
+##
+##  You should have received a copy of the GNU General Public License
+##  along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
+##
+
+NAME := serial-arduino-led
+BOARD_TYPE := arduino2009v2
+CXX_OBJ := $(NAME).o
+LIBS := util serialio
+CXX_LIBS := arduino-stub
+SPREADAVR_PATH := ..
+
+include $(SPREADAVR_PATH)/include.mk
diff --git a/serial-arduino-led/serial-arduino-led.cpp b/serial-arduino-led/serial-arduino-led.cpp
new file mode 100644
index 0000000..434fd70
--- /dev/null
+++ b/serial-arduino-led/serial-arduino-led.cpp
@@ -0,0 +1,71 @@
+/*
+ *  spreadspace avr utils
+ *
+ *
+ *  Copyright (C) 2013-2016 Christian Pointner <equinox@spreadspace.org>
+ *
+ *  This file is part of spreadspace avr utils.
+ *
+ *  spreadspace avr utils is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  any later version.
+ *
+ *  spreadspace avr utils is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/interrupt.h>
+#include <avr/power.h>
+#include <stdio.h>
+
+#include "util.h"
+#include "serialio.h"
+
+#include "Arduino.h"
+
+#define LED_PIN 12
+
+void handle_cmd(uint8_t cmd)
+{
+  switch(cmd) {
+  case '0': digitalWrite(LED_PIN, LOW); break;
+  case '1': digitalWrite(LED_PIN, HIGH); break;
+  case '!': reset2bootloader(); break;
+  default: printf("error\r\n"); return;
+  }
+  printf("ok\r\n");
+}
+
+int main(void)
+{
+  MCUSR &= ~(1 << WDRF);
+  wdt_disable();
+
+  cpu_init();
+  serialio_init(57600, 0);
+  arduino_init();
+  sei();
+
+  pinMode(LED_PIN, OUTPUT);
+
+  for(;;) {
+    int16_t BytesReceived = serialio_bytes_received();
+    while(BytesReceived > 0) {
+      int ReceivedByte = fgetc(stdin);
+      if(ReceivedByte != EOF) {
+        handle_cmd(ReceivedByte);
+      }
+      BytesReceived--;
+    }
+
+    serialio_task();
+  }
+}
-- 
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