采用的CC2650和tmp117利用I2C进行了通信，借鉴了CC2640R2的读取tmp117的代码，但最终在手机端采集到的数字丢失高八位数据，经过调试也没有得到改正，请问有什么办法定位问题吗？把相关代码附在下面。
定义广播数组
static uint8_t advertData[] =
{
// Flags; this sets the device to use limited discoverable
// mode (advertises for 30 seconds at a time) instead of general
// discoverable mode (advertises indefinitely)
0x02, // length of this data
GAP_ADTYPE_FLAGS,
DEFAULT_DISCOVERABLE_MODE | GAP_ADTYPE_FLAGS_BREDR_NOT_SUPPORTED,
// service UUID, to notify central devices what services are included
// in this peripheral
0x03, // length of this data
GAP_ADTYPE_16BIT_MORE, // some of the UUID's, but not all
LO_UINT16(SENSORPROFILE_SERV_UUID),
HI_UINT16(SENSORPROFILE_SERV_UUID),
// Manufacturer specific data communicated here
0x03, // length of this data
GAP_ADTYPE_MANUFACTURER_SPECIFIC, // Manufacturer Specific Data
0x00, // Temp High
0x00 // Temp Low
}
初始化并开始单次测量（tmp117的数据读取函数和I2C的初始化省略，见tida 01624.c中的代码）
I2C_init();
// hGpioPin = PIN_open(&pinGpioState, radCtrlCfg_peripheral);
// PIN_registerIntCb(hGpioPin, SensorTag_callback);
uint8_t txBuffer[3];
uint8_t rxBuffer[2];
I2C_Transaction i2cTransaction;
/* Initializing the task */
sensorTaskInit();
/* Configure the TMP117 for One Shot conversion with an average of 8 */
txBuffer[0] = TMP117_OBJ_CONFIG;
txBuffer[1] = 0x0C;
txBuffer[2] = 0x20;
i2cTransaction.slaveAddress = Board_TMP_ADDR;
i2cTransaction.writeBuf = txBuffer;
i2cTransaction.writeCount = 3;
i2cTransaction.readBuf = rxBuffer;
i2cTransaction.readCount = 0;
/* Wait for the I2C access for configuration. If it fails
* then sleep for 1 second and try again. This is a must
* to do before reading the device. */
while(!(I2C_transfer(i2c, &i2cTransaction)))
{
//Display_printf(dispHandle, 0, 0, "I2C Cfg Fault");
}
Util_startClock(&periodicClock);
// Perform a read to flush the TMP117 power on value
sensorRead();
定义周期发送数据
if (events & SBP_PERIODIC_EVT)// add periodic event
{
uint16_t uiTempData;
// events &= ~SBP_PERIODIC_EVT;
//start timer again
Util_startClock(&periodicClock);
// Read the last converted temperature and then start the next
// temperature conversion.
uiTempData = sensorRead();
// Update the Auto Advertisement Data
advertData[9] = (uiTempData & 0xFF00) >> 8;
advertData[10] = uiTempData & 0xFF;
GAPRole_SetParameter(GAPROLE_ADVERT_DATA, sizeof(advertData), advertData);
// // Perform periodic application task
// SimplePeripheral_performPeriodicTask(uiTempData);
// Perform periodic application task
sensor_performPeriodicTask(uiTempData); // task period
进入到IAR的debug模式后，之前会顺利从BIOS_start()顺利跳转到task_init();中执行，但最近出现了死循环，debug提示stack pointer for CSTACK is outside the stack range. 上网搜索了很多之后，这种不影响程序，但影响我调试程序，查看taskfxn函数中温度变量值。
请问：
1、采用上述代码到CC2650中，存在什么问题，导致蓝牙发送时高八位数据丢失；
2、采用IAR的debug时，怎么操作可以避免进入BIOS_start()死循环，而进入到taskfxn函数中。
