______________________________________________
    ____                         __       __  
    /   )          /           /    )   /    )
---/__ /-----__---/__---------/----/----\-----
  /    )   /   ) /   ) /   / /    /      \    
_/____/___(___(_(___/_(___/_(____/___(____/___
                         /                    
                     (_ /                     

//           设备        驱动          描述
B_DEVICE_REG(W25QXX, bW25X_Driver, "flash")
//如果没有注册任何设备，取消B_DEVICE_REG(null, bNullDriver, "null")的注释    
//B_DEVICE_REG(null, bNullDriver, "null")   

#define HAL_W25X_SPI                    B_HAL_SPI_2
#define HAL_W25X_CS_PORT                B_HAL_GPIOB             
#define HAL_W25X_CS_PIN                 B_HAL_PIN12

uint8_t bHalSPI_SendReceiveByte(uint8_t no, uint8_t dat)
{
    uint8_t tmp;
    switch(no)
    {
        case B_HAL_SPI_2:
            HAL_SPI_TransmitReceive(&hspi2, &dat, &tmp, 1, 0xff);
            break;
        default:
            break;
    }
    return tmp;
}

void bHalGPIO_WritePin(uint8_t port, uint8_t pin, uint8_t s)
{
    GPIO_PinState sta = (s) ? GPIO_PIN_SET : GPIO_PIN_RESET;
    HAL_GPIO_WritePin(GPIO_PortTable[port], GPIO_PinTable[pin], sta);
}

#include "b_os.h"    //头文件
//b_config.h配置文件中使能KV存储
int main()
{
    uint8_t buf[128];
    //......     
    bInit();    //初始化，外设的初始化会在此处调用
    
    //下面举例使用：W25QXX和KV存储功能模块,其中W25QXX已经添加到b_device_list.h
    if(0 == bKV_Init(W25QXX, 0xA000, 4096 * 4, 4096)) //初始化KV存储，指定存储设备W25QXX
    {
        b_log("bKV_Init ok...\r\n");
    }
    //存储键值对（可用于存储系统配置信息）
    bKV_Set((uint8_t *)"name", (uint8_t *)"BabyOS", 7);
    bKV_Get((uint8_t *)"name", buf);
    b_log("name:%s\r\n", buf); 
    //......
    while(1)
    {
        //.....
        bExec();      //循环调用此函数
        //.....
    }
}

//举例使用W25QXX读取数据，从0地址读取128个字节数据至buf
{
    int fd = -1;
    fd = bOpen(W25QXX, BCORE_FLAG_RW);
    if(fd == -1)
    {
        return;
    }
    bLseek(fd, 0);
    bRead(fd, buf, 128);
    bClose(fd); 
}