#include <bsp.h>
#include <stm32f4xx_spi.h>
#include <stm32f4xx_rcc.h>
#include <stm32f4xx_gpio.h>
#include <stdio.h>
#define CODEC_I2C_GPIO_AF              GPIO_AF_I2C1
#define CODEC_I2C_GPIO                 GPIOB
#define CODEC_I2C_SCL_PIN              GPIO_Pin_6
#define CODEC_I2C_SDA_PIN              GPIO_Pin_9
#define CODEC_I2S_SCL_PINSRC           GPIO_PinSource6
#define CODEC_I2S_SDA_PINSRC           GPIO_PinSource9

int main()
{
	GPIO_InitTypeDef GPIO_InitStructure;
 	SPI_InitTypeDef  SPI_InitStructure;
	bsp_init();
	RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
	RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
  	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15; 
  	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
  	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  	GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  	GPIO_InitStructure.GPIO_PuPd  = GPIO_PuPd_NOPULL;
  	GPIO_Init(GPIOB, &GPIO_InitStructure);     
  	GPIO_PinAFConfig(GPIOB, GPIO_PinSource13, GPIO_AF_SPI2);  
  	GPIO_PinAFConfig(GPIOB, GPIO_PinSource14, GPIO_AF_SPI2); 
  	GPIO_PinAFConfig(GPIOB, GPIO_PinSource15, GPIO_AF_SPI2);  
  	
	SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
	SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
	SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
	SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
	SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
	SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
	SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4;
	SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
	SPI_InitStructure.SPI_CRCPolynomial = 7;
	SPI_Init(SPI2, &SPI_InitStructure);
	SPI_Cmd(SPI2, ENABLE);
  	while(1)
  	{
  		while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
 		 SPI_I2S_SendData(SPI2, 0x5a);
  	} 
}