From 10fe451fed560b6c9cc16383f8b625f8a2741fac Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Wed, 4 May 2016 20:29:32 +0200
Subject: added serial pjon example... pjon receive works now as well

---
 serial-pjon/serial-pjon.cpp | 116 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 serial-pjon/serial-pjon.cpp

(limited to 'serial-pjon/serial-pjon.cpp')

diff --git a/serial-pjon/serial-pjon.cpp b/serial-pjon/serial-pjon.cpp
new file mode 100644
index 0000000..194edc7
--- /dev/null
+++ b/serial-pjon/serial-pjon.cpp
@@ -0,0 +1,116 @@
+/*
+ *  spreadspace avr utils
+ *
+ *
+ *  Copyright (C) 2013-2015 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 "led.h"
+#include "serialio.h"
+
+#include "Arduino.h"
+#include "PJON.h"
+
+PJON bus(8); // Bus connection to pin 8
+
+void error_handler(uint8_t code, uint8_t data) {
+  if(code == CONNECTION_LOST) {
+    printf("Connection with device ID %d is lost.\r\n", data);
+  }
+  if(code == PACKETS_BUFFER_FULL) {
+    printf("Packet buffer is full, has now a length of %d\r\n", data);
+    printf("Possible wrong bus configuration!\r\n");
+    printf("higher MAX_PACKETS in PJON.h if necessary.\r\n");
+  }
+  if(code == MEMORY_FULL) {
+    printf("Packet memory allocation failed. Memory is full.\r\n");
+  }
+  if(code == CONTENT_TOO_LONG) {
+    printf("Content is too long, length: %d\r\n", data);
+  }
+  if(code == ID_ACQUISITION_FAIL) {
+    printf("Can't acquire a free id %d\r\n", data);
+  }
+}
+
+void recv_handler(uint8_t length, uint8_t *payload) {
+  if(length == 0) {
+    printf("got 0 byte message...\r\n");
+    return;
+  }
+  led_on();
+  printf("got message(%d bytes): '", length);
+  for(uint16_t i = 0; i < length; ++i)
+    putchar(payload[i]);
+  printf("'\r\n");
+  delay(30);
+  led_off();
+}
+
+
+void handle_cmd(uint8_t cmd)
+{
+  switch(cmd) {
+  case '1': case '2': case '3':
+  case '4': case '5': case '6':
+  case '7': case '8': case '9': bus.set_id(cmd - '0'); printf("device id is now: %d\r\n", cmd - '0'); break;
+  case 'b': bus.send(BROADCAST, "hello world", 11); break;
+  case 's': bus.send(9, "hi!", 3); break;
+  case '!': reset2bootloader(); break;
+  default: printf("error\r\n"); return;
+  }
+  printf("ok\r\n");
+}
+
+int main(void)
+{
+  MCUSR &= ~(1 << WDRF);
+  wdt_disable();
+
+  cpu_init();
+  led_init();
+  serialio_init(57600, 0);
+  sei();
+
+  arduino_init();
+  bus.begin();
+  bus.set_error(error_handler);
+  bus.set_receiver(recv_handler);
+
+  for(;;) {
+    int16_t BytesReceived = serialio_bytes_received();
+    while(BytesReceived > 0) {
+      int ReceivedByte = fgetc(stdin);
+      if(ReceivedByte != EOF) {
+        handle_cmd(ReceivedByte);
+      }
+      BytesReceived--;
+    }
+
+    serialio_task();
+    bus.update();
+    bus.receive(50);
+  }
+}
-- 
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