void VS_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
// SPI_InitTypeDef SPI_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_GPIOB, ENABLE); //使能PC,PB端口时钟
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4; //PC4
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; //输入
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5; //PC5
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //输出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure);
//GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; //PE6
//GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽输出
//GPIO_Init(GPIOE, &GPIO_InitStructure);
//PF6,PF7
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽输出
GPIO_Init(GPIOB, &GPIO_InitStructure);
///spi初始化
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA|RCC_APB2Periph_SPI1, ENABLE );//PORTA,SPI1时钟使能
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //PA5.6.7复用推挽
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_SetBits(GPIOA,GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7); //PA5.6.7上拉
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex; //设置SPI单向或者双向的数据模式:SPI设置为双线双向全双工
SPI_InitStructure.SPI_Mode = SPI_Mode_Master; //设置SPI工作模式:设置为主SPI
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b; //设置SPI的数据大小:SPI发送接收8位帧结构
SPI_InitStructure.SPI_CPOL = SPI_CPOL_High; //选择了串行时钟的稳态:时钟悬空高
SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge; //数据捕获于第二个时钟沿
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft; //NSS信号由硬件(NSS管脚)还是软件(使用SSI位)管理:内部NSS信号有SSI位控制
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_256; //定义波特率预分频的值:波特率预分频值为16
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB; //指定数据传输从MSB位还是LSB位开始:数据传输从MSB位开始
SPI_InitStructure.SPI_CRCPolynomial = 7; //CRC值计算的多项式
SPI_Init(SPI1, &SPI_InitStructure); //根据SPI_InitStruct中指定的参数初始化外设SPIx寄存器
SPI_Cmd(SPI1, ENABLE); //使能SPI外设
SPI1_ReadWriteByte(0xff);//启动传输
//SPI1_Init();
//delay_ms(2);//等待至少1.35ms
//VS_WR_Cmd(SPI_CLOCKF,0xFFFF);
}
u16 VS_Ram_Test(void)
{
//VS_HD_Reset();
delay_ms(150);
VS_WR_Cmd(SPI_MODE,0x0820);// 进入VS10XX的测试模式
while (VS_DQ==0); // 等待DREQ为高
VS_SPI_SpeedLow();//低速
VS_XDCS=0; // xDCS = 1,选择VS10XX的数据接口
VS_SPI_ReadWriteByte(0x4d);
VS_SPI_ReadWriteByte(0xea);
VS_SPI_ReadWriteByte(0x6d);
VS_SPI_ReadWriteByte(0x54);
VS_SPI_ReadWriteByte(0x00);
VS_SPI_ReadWriteByte(0x00);
VS_SPI_ReadWriteByte(0x00);
VS_SPI_ReadWriteByte(0x00);
delay_ms(150);
VS_XDCS=1;
return VS_RD_Reg(SPI_HDAT0);// VS1003如果得到的值为0x807F,则表明完好;VS1053为0X83FF.;
}
用的是原子哥的代码,因为需要倍频,但一提高频率音乐就没了