diff options
Diffstat (limited to 'os/hal')
| -rw-r--r-- | os/hal/ports/STM32/LLD/I2Cv2/i2c_lld.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/os/hal/ports/STM32/LLD/I2Cv2/i2c_lld.c b/os/hal/ports/STM32/LLD/I2Cv2/i2c_lld.c index e0bc31979..991e77b01 100644 --- a/os/hal/ports/STM32/LLD/I2Cv2/i2c_lld.c +++ b/os/hal/ports/STM32/LLD/I2Cv2/i2c_lld.c @@ -844,8 +844,11 @@ void i2c_lld_start(I2CDriver *i2cp) { #endif
/* Reset i2c peripheral, the TCIE bit will be handled separately.*/
- dp->CR1 = i2cp->config->cr1 | I2C_CR1_ERRIE | I2C_CR1_NACKIE |
- I2C_CR1_TXDMAEN | I2C_CR1_RXDMAEN;
+ dp->CR1 = i2cp->config->cr1 |
+#if STM32_I2C_USE_DMA == TRUE
+ I2C_CR1_TXDMAEN | I2C_CR1_RXDMAEN | /* Enable only if using DMA */
+#endif
+ I2C_CR1_ERRIE | I2C_CR1_NACKIE;
/* Setup I2C parameters.*/
dp->TIMINGR = i2cp->config->timingr;
|