X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=arducontrol%2Finterface.c;h=014e8e98bcaa0ac5eacbeb061f1a38754e1a2ae5;hb=49c7ae4a26f8dd7d09872b6b5e4c107ef33b4560;hp=c5a7262d4c12199b217f0430f5ffe288c399afe6;hpb=c97e84ca85810963c0c7e05d43ce5584b94cc9b3;p=model-railway-devices.git

diff --git a/arducontrol/interface.c b/arducontrol/interface.c
index c5a7262..014e8e9 100644
--- a/arducontrol/interface.c
+++ b/arducontrol/interface.c
@@ -10,10 +10,11 @@ static uint8_t cmd_buffer[15];
 static uint8_t cmd_length = 0;
 static uint8_t cmd_read_pos = 0;
 
-uint8_t dispatch_command(const uint8_t *, uint8_t);
+static uint8_t dispatch_command(const uint8_t *, uint8_t);
 
 void interface_init(void)
 {
+	DDRB |= 0x01;
 	DDRD = (DDRD&0xFC)|0x02;
 
 	serial_init(9600);
@@ -21,13 +22,13 @@ void interface_init(void)
 
 void interface_check(void)
 {
-	uint8_t count;
 	if(serial_read_overrun())
 		interface_send1(RECEIVE_OVERRUN);
 
-	count = serial_read_available();
+	uint8_t count = serial_read_available();
 	if(count>0)
 	{
+		PORTB |= 0x01;
 		if(cmd_length==0)
 		{
 			uint8_t l = ~serial_read();
@@ -45,10 +46,9 @@ void interface_check(void)
 
 		if(cmd_read_pos<cmd_length)
 		{
-			uint8_t i;
 			if(cmd_read_pos+count>cmd_length)
 				count = cmd_length-cmd_read_pos;
-			for(i=0; i<count; ++i)
+			for(uint8_t i=0; i<count; ++i)
 				cmd_buffer[cmd_read_pos++] = serial_read();
 
 			if(cmd_read_pos>=cmd_length)
@@ -58,10 +58,11 @@ void interface_check(void)
 				cmd_length = 0;
 			}
 		}
+		PORTB &= ~0x01;
 	}
 }
 
-uint8_t dispatch_command(const uint8_t *cmd, uint8_t length)
+static uint8_t dispatch_command(const uint8_t *cmd, uint8_t length)
 {
 	uint8_t type = cmd[0]>>4;
 	if(type==0)
@@ -82,10 +83,8 @@ uint8_t dispatch_command(const uint8_t *cmd, uint8_t length)
 
 void interface_send(const uint8_t *cmd, uint8_t length)
 {
-	uint8_t i;
-
 	serial_write(~length);
-	for(i=0; i<length; ++i)
+	for(uint8_t i=0; i<length; ++i)
 		serial_write(cmd[i]);
 }