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| author | barthess <barthess@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2011-12-08 14:34:44 +0000 |
|---|---|---|
| committer | barthess <barthess@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2011-12-08 14:34:44 +0000 |
| commit | a524ec87f1fffcfea724d8485911fe94a503265f (patch) | |
| tree | cd462976f8c482b41bba910e2ed29ada65b64d68 /os/hal/src | |
| parent | ffdf5831594cbe5f5326b537e49aad6caf2fbf70 (diff) | |
| download | ChibiOS-a524ec87f1fffcfea724d8485911fe94a503265f.tar.gz ChibiOS-a524ec87f1fffcfea724d8485911fe94a503265f.tar.bz2 ChibiOS-a524ec87f1fffcfea724d8485911fe94a503265f.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@3581 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/src')
| -rw-r--r-- | os/hal/src/i2c.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/os/hal/src/i2c.c b/os/hal/src/i2c.c index ae5f9f7a8..63c03565a 100644 --- a/os/hal/src/i2c.c +++ b/os/hal/src/i2c.c @@ -137,8 +137,6 @@ void i2cStop(I2CDriver *i2cp) { * @details Function designed to realize "read-through-write" transfer
* paradigm. If you want transmit data without any further read,
* than set @b rxbytes field to 0.
- * Number of receiving byts must be 0 or more than 1 because of stm32
- * hardware restrictions.
*
* @param[in] i2cp pointer to the @p I2CDriver object
* @param[in] slave_addr Slave device address (7 bits) without R/W bit
@@ -159,7 +157,7 @@ i2cflags_t i2cMasterTransmit(I2CDriver *i2cp, chDbgCheck((i2cp != NULL) && (slave_addr != 0) &&
(txbytes > 0) && (txbuf != NULL) &&
- ((rxbytes == 0) || ((rxbytes > 1) && (rxbuf != NULL))),
+ ((rxbytes == 0) || ((rxbytes > 0) && (rxbuf != NULL))),
"i2cMasterTransmit");
i2c_lld_wait_bus_free(i2cp);
@@ -178,8 +176,6 @@ i2cflags_t i2cMasterTransmit(I2CDriver *i2cp, /**
* @brief Receives data from the I2C bus.
- * Number of receiving byts must be more than 1 because of stm32
- * hardware restrictions.
*
* @param[in] i2cp pointer to the @p I2CDriver object
* @param[in] slave_addr slave device address (7 bits) without R/W bit
@@ -194,7 +190,7 @@ i2cflags_t i2cMasterReceive(I2CDriver *i2cp, size_t rxbytes){
chDbgCheck((i2cp != NULL) && (slave_addr != 0) &&
- (rxbytes > 1) && (rxbuf != NULL),
+ (rxbytes > 0) && (rxbuf != NULL),
"i2cMasterReceive");
i2c_lld_wait_bus_free(i2cp);
|