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authorGiovanni Di Sirio <gdisirio@gmail.com>2015-11-14 18:38:36 +0000
committerGiovanni Di Sirio <gdisirio@gmail.com>2015-11-14 18:38:36 +0000
commit4031ccce3ae6544e81f1b26f8e407efb15594278 (patch)
tree58db811ad78f18f559a139d68622789ae2f02741 /os/hal/ports
parent3f53115539e279a12f04ce07ef9f021bfee310fa (diff)
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Fixed bug #671.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@8490 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/ports')
-rw-r--r--os/hal/ports/STM32/LLD/I2Cv2/i2c_lld.c7
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;