我从贵司网站下载的C2000Ware_3_04_00_00的软件包。我们目前要使用PMBUS通讯，
因此着重看代码： C:\ti\c2000\C2000Ware_3_04_00_00\libraries\communications\PMBus\c28\examples\28002x_pmbus_slave
这个例程有一个如下的结构体：
typedef struct
{
uint32_t moduleBase; //!< Base address of the PMBus module
uint32_t moduleStatus; //!< Status register of the PMBus module
PMBus_StackMode mode; //!< PMBus mode of operation
uint16_t slaveAddress; //!< Slave address for the PMBus module
uint16_t slaveAddressMask; //!< Slave address mask for PMBus module
PMBus_StackState currentState; //!< Current state of the state machine
PMBus_StackState nextState; //!< next state of the state machine
uint16_t *bufferPointer; //!< pointer to a buffer of length >= 4
uint16_t *currentBufferPointer; //!< Current position in the buffer
uint16_t numOfBytes; //!< Number of bytes sent/received
bool PECValidity; //!< Valid PEC received or sent
PMBus_Transaction transaction; //!< Current Transaction type
//! Handler for each transaction
transactionHandler transactionHandle[NTRANSACTIONS];
} PMBus_StackObject;
使用时发现不知道哪个变量是我们要发送或接收的数据DATA，
就是说寄存器PMBTXBUF, PMBRXBUF分别对应上述结构体中的哪两个变量。
我们使用这种通信时，如何实现每1S发出一次数据的操作。
请给出具体的步骤，谢谢！
