From: Michael Gernoth <michael@gernoth.net>
Date: Mon, 23 Aug 2010 16:46:58 +0000 (+0200)
Subject: TWI inetrrupts aren't asserted when interrupts are disabled, strange...
X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/rsbs2/commitdiff_plain/285b23e4994190598196fe120c7a15b032595594?hp=87f4338b452dea4fdebba3eac573bec999642eb9

TWI inetrrupts aren't asserted when interrupts are disabled, strange...
---

diff --git a/bmc/i2c.c b/bmc/i2c.c
index f0816f0..d7bb951 100644
--- a/bmc/i2c.c
+++ b/bmc/i2c.c
@@ -78,10 +78,9 @@ out2:
 	TWCR = ((1<<TWINT) | (1<<TWEN) | (1<<TWSTO));
 	while(TWCR & (1<<TWSTO)) {}
 
-	TWCR = (1<<TWINT) | (1<<TWEN);
 out:	
-	TWCR = old_TWCR;
 	SREG = old_SREG;
+	TWCR = old_TWCR | (1<<TWINT);
 }
 
 ISR (TWI_vect, ISR_BLOCK)