diff options
Diffstat (limited to 'os/hal')
| -rw-r--r-- | os/hal/src/i2c.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/os/hal/src/i2c.c b/os/hal/src/i2c.c index f7f7c335e..c67f3a8c6 100644 --- a/os/hal/src/i2c.c +++ b/os/hal/src/i2c.c @@ -168,6 +168,8 @@ msg_t i2cMasterTransmit(I2CDriver *i2cp, ((rxbytes == 0) || ((rxbytes > 0) && (rxbuf != NULL))) &&
(timeout > TIME_IMMEDIATE) && (errors != NULL),
"i2cMasterTransmit");
+
+ i2c_lld_wait_bus_free(i2cp);
i2cp->errors = I2CD_NO_ERROR; /* clear error flags from previous run */
chDbgAssert(i2cp->id_state == I2C_READY,
"i2cMasterTransmit(), #1", "not ready");
@@ -209,6 +211,8 @@ msg_t i2cMasterReceive(I2CDriver *i2cp, (rxbytes > 0) && (rxbuf != NULL) &&
(timeout > TIME_IMMEDIATE) && (errors != NULL),
"i2cMasterReceive");
+
+ i2c_lld_wait_bus_free(i2cp);
i2cp->errors = I2CD_NO_ERROR; /* clear error flags from previous run */
chDbgAssert(i2cp->id_state == I2C_READY,
"i2cMasterReceive(), #1", "not ready");
|