From 7c2ece0331e0cd9dad9f738698c1d58d04558858 Mon Sep 17 00:00:00 2001
From: Florian Jung <flo@windfisch.org>
Date: Sun, 24 Jan 2016 16:06:58 +0100
Subject: tut

---
 avr/1wire.c | 18 ++++++++++++------
 avr/main.c  |  5 +++--
 2 files changed, 15 insertions(+), 8 deletions(-)

(limited to 'avr')

diff --git a/avr/1wire.c b/avr/1wire.c
index 5dbca82..affd80d 100644
--- a/avr/1wire.c
+++ b/avr/1wire.c
@@ -79,15 +79,20 @@ uint8_t w1_bit_io( uint8_t b )
 	_delay_us( 1 );
 	if( b )
 	{
-		//hard_vcc;
-		//asm volatile("nop" ::: );
+		hard_vcc;
+		_delay_us(7 );
 		soft_vcc;
+		_delay_us( 15 - 1 - 7 );
+	}
+	else
+	{
+		_delay_us( 15 - 1 );
 	}
-	_delay_us( 15 - 1 );
 	if( (W1_IN & (1<<W1_PIN)) == 0 )
 		b = 0;
 	_delay_us( 60 - 15 );
-	soft_vcc;
+	//soft_vcc;
+	hard_vcc;
 	sei();
 	return b;
 }
@@ -104,6 +109,7 @@ uint8_t w1_byte_wr( uint8_t b )
 			b |= 0x80;
 	}
 	while( --i );
+	soft_vcc;
 	return b;
 }
 
@@ -113,7 +119,7 @@ uint8_t w1_byte_rd( void )
 	return w1_byte_wr( 0xFF );
 }
 
-
+/*
 uint8_t w1_rom_search( uint8_t diff, uint8_t *id )
 {
 	uint8_t i, j, next_diff;
@@ -158,7 +164,7 @@ uint8_t w1_rom_search( uint8_t diff, uint8_t *id )
 	}
 	while( i );
 	return next_diff;				// to continue search
-}
+}*/
 
 void ds1992_read(uint16_t addr, uint8_t* buf, uint8_t len)
 {
diff --git a/avr/main.c b/avr/main.c
index 5c9742f..e1a4099 100644
--- a/avr/main.c
+++ b/avr/main.c
@@ -72,7 +72,8 @@ usbMsgLen_t usbFunctionSetup(uchar data[8])
 		case FUNC_WRITE:
 			PORTC ^= LED_RED;
 			//strcpy(replyBuffer, "Hello world");
-			len = strlen(replyBuffer)+1;
+			//len = strlen(replyBuffer)+1;
+			len = 130;
 			break;
 	}
 
@@ -159,7 +160,7 @@ int main(void)
 			if (result == 0)
 			{
 				PORTC &= ~LED_GREEN;
-				ds1992_read(0x00, replyBuffer, 128);
+				ds1992_read(42, replyBuffer, 128);
 			}
 			else if (result == 1)
 				PORTC &= ~LED_RED;
-- 
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