project:gsm:shield:sketch

Anonymous (anonymous@undisclosed.example.com) — 2012-04-25T20:33:45+00:00

1335386005	current
Line 1:	Line 1:
	+	<code>

	+	byte cmdlen = 0;
	+
	+	void setup() {
	+	DDRC = B11111111;
	+	DDRB = B11111111;
	+	DDRD = B11111110;
	+	Serial.begin(9600);
	+	PORTC = B00000000;
	+	PORTB = B00000000;
	+	PORTD = B00000000;
	+	}
	+
	+	void loop() {
	+	ServeConsole();
	+	}
	+
	+	void ServeConsole() {
	+	static char cmd[16];
	+	while(Serial.available()) { // Read chars from buffer.
	+	byte c = Serial.read();
	+	if (cmdlen>=sizeof(cmd)) {
	+	Serial.println("Troll detected!");
	+	c = '-';
	+	}
	+	Serial.print((char)c);
	+	if (c == 10 \|\| c == 13 \|\| c==64) {
	+	for (cmdlen=cmdlen; cmdlen<sizeof(cmd); cmdlen++) { // clean rest of cmd, because a troll user may occur
	+	cmd[cmdlen] = 0; // FIXME: better way is correct command terminator handling
	+	}
	+	Serial.println("exec");
	+	ExecCommand(cmd);
	+	cmd[cmdlen = 0] = 0;
	+	return;
	+	}
	+	if (c == '-') {
	+	cmd[cmdlen = 0] = 0;
	+	Serial.println("Aborted.");
	+	return;
	+	}
	+	cmd[cmdlen++] = c;
	+	cmd[cmdlen] = 0;
	+	}
	+	return;
	+	}
	+
	+	void ExecCommand(char *cmd) {
	+	byte portnum;
	+	boolean status;
	+	switch (cmd[0]) {
	+	case 's':
	+	/* set bit
	+	1 → portid (a-)
	+	2 → state (1/0)
	+	FIXME: syntax checking
	+	*/
	+	portnum = cmd[1]-97;
	+	status = false;
	+	if (cmd[2] == '1') {
	+	status = true;
	+	}
	+	if (portnum <= 7) {
	+	PORTD = SetBit(portnum, PORTD, status);
	+	} else if (portnum <= 15) {
	+	PORTB = SetBit(portnum-8, PORTB, status);
	+	} else if (portnum <= 23) {
	+	PORTC = SetBit(portnum-16, PORTC, status);
	+	}
	+	break;
	+	default:
	+	Serial.println("WTF?");
	+	break;
	+	}
	+	return;
	+	}
	+
	+	byte SetBit (byte pos, byte packet, boolean state) {
	+	if(state) {
	+	bitWrite(packet, pos, 1);
	+	}
	+	else {
	+	bitWrite(packet, pos, 0);
	+	}
	+	return packet;
	+	}
	+	</code>

brmlab project:gsm:shield

project:gsm:shield:sketch