CC2640R2F 支持硬件I2C吗

有硬件I2C，传输速率可自己配置，代码里有如下几种：

typedef enum {
    I2C_100kHz     = 0,    /*!< I2C Standard-mode. Up to 100 kbit/s. */
    I2C_400kHz     = 1,    /*!< I2C Fast-mode. Up to 400 kbit/s. */
    I2C_1000kHz    = 2,    /*!< I2C Fast-mode Plus. Up to 1Mbit/s. */
    I2C_3330kHz    = 3,    /*!< I2C High-speed mode. Up to 3.4Mbit/s. */
    I2C_3400kHz    = 3,    /*!< I2C High-speed mode. Up to 3.4Mbit/s. */
} I2C_BitRate;

代码链接:http://dev.ti.com/tirex/explore/node?node=AHLmQux2wAaoYaHFItp0bw__krol.2c__LATEST

#define I2C0_SCL0 IOID_12 //i2c SCL
#define I2C0_SDA0 IOID_13 //i2c SDA

typedef enum CC2640R2_LAUNCHXL_I2CName {
CC2640R2_LAUNCHXL_I2C0 = 0,
CC2640R2_LAUNCHXL_I2CCOUNT
} CC2640R2_LAUNCHXL_I2CName;

I2CCC26XX_Object _i2cCC26xxObjects[CC2640R2_LAUNCHXL_I2CCOUNT];

const I2CCC26XX_HWAttrsV1 _i2cCC26xxHWAttrs[CC2640R2_LAUNCHXL_I2CCOUNT] =
{
{
.baseAddr = I2C0_BASE,
.powerMngrId = PowerCC26XX_PERIPH_I2C0,
.intNum = INT_I2C_IRQ,
.intPriority = ~0,
.swiPriority = 0,
.sdaPin = I2C0_SDA0,
.sclPin = I2C0_SCL0,
}
};

const I2C_Config cc26xxI2C_config[CC2640R2_LAUNCHXL_I2CCOUNT] =
{
{
.fxnTablePtr = &I2CCC26XX_fxnTable,
.object = &_i2cCC26xxObjects[CC2640R2_LAUNCHXL_I2C0],
.hwAttrs = &_i2cCC26xxHWAttrs[CC2640R2_LAUNCHXL_I2C0]
},
};

//I2C 句柄及参数
static I2C_Handle cc2640_I2C_Handle;
static I2C_Params cc2640_I2C_Params;
static I2C_Transaction transaction;

//初始化I2C
void i2c_init(void)
{
I2C_Params_init(&cc2640_I2C_Params);
cc2640_I2C_Params.transferMode = I2C_MODE_BLOCKING;
cc2640_I2C_Params.bitRate = I2C_3330kHz;
cc2640_I2C_Params.transferCallbackFxn = NULL;
cc26xxI2C_config[CC2640R2_LAUNCHXL_I2C0].fxnTablePtr->initFxn((I2C_Handle)&cc26xxI2C_config[CC2640R2_LAUNCHXL_I2C0]);
cc2640_I2C_Handle = cc26xxI2C_config[CC2640R2_LAUNCHXL_I2C0].fxnTablePtr->openFxn((I2C_Handle)&cc26xxI2C_config[CC2640R2_LAUNCHXL_I2C0],&cc2640_I2C_Params);
if (cc2640_I2C_Handle == NULL)
{
*((uint32 *)0x40082270) = 1;
}
}

我按上面的程序配置 SCL都是只有300多KHz左右, 上面的配置有问题吗? 还是CC2640R2F硬件I2C有最大频率限制?

手册上原文是这样：The I 2C interface is used to communicate with devices compatible with the I 2C standard. The I 2C interface is capable of 100-kHz and 400-kHz operation, and can serve as both I 2C master and I 2C slave.

因为实验室里我们只测试并验证了 100-kHz和 400-kHz ，但是有客户设置过其他值，1M以下应该都没有问题。