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| author | Dean Camera <dean@fourwalledcubicle.com> | 2013-01-15 19:34:35 +0000 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2013-01-15 19:34:35 +0000 |
| commit | 730db924c92de6db6c3115325984f740ef300dd4 (patch) | |
| tree | 64b1e52a7acf72eef41d1fd12e5e9717682d943c /LUFA/Drivers/Peripheral/AVR8 | |
| parent | f51c87b9160dd89810bac7579246ae14f61e0a8b (diff) | |
| download | lufa-730db924c92de6db6c3115325984f740ef300dd4.tar.gz lufa-730db924c92de6db6c3115325984f740ef300dd4.tar.bz2 lufa-730db924c92de6db6c3115325984f740ef300dd4.zip | |
Fixed bug in the TWI peripheral driver for the AVR8 devices causing incorrect failure codes to be returned in some cases (thanks to Peter K).
Diffstat (limited to 'LUFA/Drivers/Peripheral/AVR8')
| -rw-r--r-- | LUFA/Drivers/Peripheral/AVR8/TWI_AVR8.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/LUFA/Drivers/Peripheral/AVR8/TWI_AVR8.c b/LUFA/Drivers/Peripheral/AVR8/TWI_AVR8.c index 9cfad9af4..e7629d5b7 100644 --- a/LUFA/Drivers/Peripheral/AVR8/TWI_AVR8.c +++ b/LUFA/Drivers/Peripheral/AVR8/TWI_AVR8.c @@ -45,7 +45,7 @@ uint8_t TWI_StartTransmission(const uint8_t SlaveAddress, TWCR = ((1 << TWINT) | (1 << TWSTA) | (1 << TWEN)); TimeoutRemaining = (TimeoutMS * 100); - while (TimeoutRemaining-- && !(BusCaptured)) + while (TimeoutRemaining && !(BusCaptured)) { if (TWCR & (1 << TWINT)) { @@ -65,6 +65,7 @@ uint8_t TWI_StartTransmission(const uint8_t SlaveAddress, } _delay_us(10); + TimeoutRemaining--; } if (!(TimeoutRemaining)) @@ -77,12 +78,13 @@ uint8_t TWI_StartTransmission(const uint8_t SlaveAddress, TWCR = ((1 << TWINT) | (1 << TWEN)); TimeoutRemaining = (TimeoutMS * 100); - while (TimeoutRemaining--) + while (TimeoutRemaining) { if (TWCR & (1 << TWINT)) break; _delay_us(10); + TimeoutRemaining--; } if (!(TimeoutRemaining)) |