Fix TWI driver not aborting when faced with no response after attempting to address a device on the bus.

15 years ago · 634abab38a
parent c0c982df7a
commit 634abab38a
2 changed files with 3 additions and 2 deletions
--- a/LUFA/Drivers/Peripheral/TWI.c
+++ b/LUFA/Drivers/Peripheral/TWI.c
@ -66,8 +66,8 @@ bool TWI_StartTransmission(uint8_t SlaveAddress, uint8_t TimeoutMS)
 			case TW_MR_SLA_ACK:
 				return true;
 			default:
-				TWI_StopTransmission();
-				break;
+				TWCR = ((1 << TWINT) | (1 << TWSTO) | (1 << TWEN));
+				return false;
 		}
 	}
 }
--- a/LUFA/ManPages/ChangeLog.txt
+++ b/LUFA/ManPages/ChangeLog.txt
@ -20,6 +20,7 @@
  *  <b>Fixed:</b>
  *  - Fixed software PDI/TPI programming mode in the AVRISP project not correctly toggling just the clock pin
  *  - Fixed TWI_StartTransmission() corrupting the contents of the GPIOR0 register
+  *  - Fix TWI driver not aborting when faced with no response after attempting to address a device on the bus
  *
  *  \section Sec_ChangeLog100219 Version 100219
  *