cc1310I2C读写控制位

i2cTransaction.slaveAddress = TMP116_ADDR;

i2cTransaction.writeBuf = txBuffer;

i2cTransaction.writeCount = 1;

i2cTransaction.readBuf = rxBuffer;

i2cTransaction.readCount = 2;

关于CC1310 I2C 读写如果你在writeCount或者readCount 置0以及buf设置为NULL， 则只会进行read/write操作。

/*!
 *  @brief    Structure used to perform I2C bus transfers.
 *
 *  The application is responsible for allocating and initializing an
 *  I2C_Transaction structure prior to passing it to I2C_Transfer(). This
 *  structure must persist in memory unmodified until the transfer is complete.
 *  This driver will always perform write operations first. Transmission of the
 *  I2C slave address with the appropriate read/write bit is handled internally
 *  by this driver.
 *
 *  \note #I2C_Transaction structures cannot be re-used until the previous
 *        transaction has completed.
 *
 *  @sa I2C_transfer()
 */
typedef struct I2C_Transaction_ {
    /*! Pointer to a buffer of at least \p writeCount bytes. If \p writeCount
     *  is 0, this pointer may remain uninitialized. */
    void         *writeBuf;
    /*! Number of bytes to write to the I2C slave device. A value of 0
     *  indicates no data will be written to the slave device. */
    size_t        writeCount;
    /*! Pointer to a buffer of at least \p readCount bytes. If \p readCount
     *  is 0, this pointer may remain uninitialized. */
    void         *readBuf;
    /*! Number of bytes to read from the I2C slave device. A value of 0
     *  indicates no data will be read from the slave device. */
    size_t        readCount;
    /*! I2C slave address of the slave device */
    uint_least8_t slaveAddress;
    /*! Optional application argument. This argument will be passed to the
     *  callback function specified by #I2C_Params.transferCallbackFxn when
     *  using #I2C_MODE_CALLBACK. */
    void         *arg;
    /*! This is reserved for use by the driver and must never be modified by
     *  the application. */
    void         *nextPtr;
} I2C_Transaction;