#define uchar unsigned char
#define uint unsigned int
void SPI_init(void);
void vs1011_port_init(void);
void delay_nus(unsigned int n);
void Write_Byte_SPI(unsigned char byte);
unsigned char Read_Byte_SPI(void);
void vs1011_data_write(uchar data);
void vs1011_cmd_write(uchar address,uint data);
uint vs1011_read(uchar address);
void vs1011_init(void);