/*I2C/RX8025管腳定義*/
#define SCL_H P2OUT |= BIT5 //SCL管腳置高
#define SCL_L P2OUT &=~BIT5 //SCL管腳置低
#define SDA_H P2OUT |= BIT6 //SDA管腳置高
#define SDA_L P2OUT &=~BIT6 //SDA管腳置低
#define SDA_IN P2DIR &=~BIT6 //SDA輸入模式
#define SDA_OUT P2DIR |= BIT6 //SDA輸出模式
#define SDA_VAL P2IN&BIT6 //SDA的位值讀取