实用文档
} // end of write section
///////////////////////////////////
// Read data from EEPROM section //该过程包括两次发送START位，第一次发送地址 ///////////////////////////////////
// Check outgoing message status. Bypass read section if status is // not inactive.
if (I2cMsgOut1.MsgStatus == I2C_MSGSTAT_INACTIVE) {
// Check incoming message status.
if(I2cMsgIn1.MsgStatus == I2C_MSGSTAT_SEND_NOSTOP) { Read_load_num1++;
// EEPROM address setup portion
while(I2CA_ReadData(&I2cMsgIn1) != I2C_SUCCESS) {
// Maybe setup an attempt counter to break an infinite while //这里可以设置一个计数器用于终止可能存在的无限循环。 // loop. The EEPROM will send back a NACK while it is performing//当EEPROM忙于处理写数据操作时，将返回一个NACK。 // a write operation. Even though the write communique is //对DSP来说，此刻写操作已经完成。但是，EEPROM仍需要 // complete at this point, the EEPROM could still be busy //一定时间完成数据的烧写1.8ms左右。在EEPROM完成烧写之前，都会
// programming the data. Therefore, multiple attempts are //返回NACK，告诉DSP它还在忙。因此，DSP需要多次尝试，直到
// necessary. //EEPROM空闲了，并返回ACK确认为止。 }
// Update current message pointer and message status CurrentMsgPtr = &I2cMsgIn1;
I2cMsgIn1.MsgStatus = I2C_MSGSTAT_SEND_NOSTOP_BUSY;
//第一次发送START成功，即地址数据已发送成功，给发无停止位数据忙状态，作为第二次发送START位标志 }
// Once message has progressed past setting up the internal address//一旦成功写入EEPROM地址，便可以再次发送START起始位
// of the EEPROM, send a restart to read the data bytes from the //然后从EEPROM存储器中读取数据。 // EEPRO