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/*
* spreadspace avr utils
*
*
* Copyright (C) 2013-2018 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 "usbio.h"
#include "Arduino.h"
#include "PJON.h"
PJON<SoftwareBitBang> bus;
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 id, uint8_t *payload, uint8_t length) {
if(length == 0) {
printf("got 0 byte message from %d...\r\n", id);
return;
}
led_on();
printf("got message(%d bytes) from %d: '", length, id);
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();
usbio_init();
sei();
arduino_init();
bus.set_error(error_handler);
bus.set_receiver(recv_handler);
bus.set_pin(8);
bus.begin();
for(;;) {
int16_t BytesReceived = usbio_bytes_received();
while(BytesReceived > 0) {
int ReceivedByte = fgetc(stdin);
if(ReceivedByte != EOF) {
handle_cmd(ReceivedByte);
}
BytesReceived--;
}
usbio_task();
bus.update();
bus.receive(50);
}
}
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