1、功能说明
    本工程为NetBIOS协议下的名称服务（NetBIOS Name Service）示例，简称NBNS。用于实现将设备的NetBIOS名与IP地址相映射，使得在同一局域网中的其他设备可以通过该NetBIOS名访问该设备。

2、使用环境

    软件环境：
        KEIL MDK-ARM 5.34.0
        IAR EWARM 8.50.1
    
    芯片支持：
        N32H730  
        N32H735   
        N32H735EC
        N32H760
        N32H762
        N32H765
        N32H765EC
        N32H785
        N32H785EC
        N32H787

3、使用说明
    
    系统配置：
        1、时钟源：HSI+PLL
        2、时钟频率：M7：600MHz，M4：300MHz
        3、打印：PA9 - baud rate 115200

    以太网配置：
        1、PHY接口：GMII
        2、引脚分配：
            ETH1_MDC <-----> PC1
            ETH1_MDIO <-----> PA2
            ETH1_GMII_RXDV <-----> PA7
            ETH1_GMII_TXD0 <-----> PG13
            ETH1_GMII_TXD1 <-----> PG12
            ETH1_GMII_TXD2 <-----> PE3
            ETH1_GMII_TXD3 <-----> PE2
            ETH1_GMII_TXD4 <-----> PI4
            ETH1_GMII_TXD5 <-----> PI5
            ETH1_GMII_TXD6 <-----> PI6
            ETH1_GMII_TXD7 <-----> PI7
            ETH1_GMII_TXEN <-----> PG11
            ETH1_GMII_RXD0 <-----> PC4
            ETH1_GMII_RXD1 <-----> PC5
            ETH1_GMII_RXD2 <-----> PH6
            ETH1_GMII_RXD3 <-----> PH7
            ETH1_GMII_RXD4 <-----> PE12
            ETH1_GMII_RXD5 <-----> PE13
            ETH1_GMII_RXD6 <-----> PE14
            ETH1_GMII_RXD7 <-----> PE15
            ETH1_GMII_RXCLK <-----> PA1
            ETH1_GMII_COL <-----> PH3
            ETH1_GMII_CRS <-----> PA0
            ETH1_GMII_RXER <-----> PB10
            ETH1_GMII_TXER <-----> PB2
            ETH1_GMII_TXCLK <-----> PC3
            ETH1_GMII_GTXCLK <-----> PF5
            ETH1_CLK125 <-----> PD10

    使用方法：
        1、根据需要修改NETBIOS_HOST_NAME
        2、编译后下载程序运行，串口将打印本地IP地址、子网掩码、网关等信息
        3、完成NetBIOS名与本地IP地址的映射后，串口将打印该NetBIOS名
        4、在电脑端ping打印信息中的NetBIOS名，可以看到回复信息中的IP地址信息与开发板本地IP地址一致

4、注意事项
    1、您使用的PHY芯片可能与demo默认选择的不一样，请在bsp_eth.h中切换或添加其他PHY的定义；请注意PHY_ADDR，PHY地址值必须与硬件设计保持一致
    2、NetBIOS名必须少于15个字符
    3、开发板默认静态IP地址为：192.168.0.32，使用静态IP地址时要确保开发板与电脑处于同一网段，且无IP地址冲突


1. Function description
    This project is an example of NetBIOS Name Service (NBNS for short) under the NetBIOS protocol. which is used to implement the mapping of a device's NetBIOS name to an IP address so that other devices on the same LAN can access the device through that NetBIOS name.

2. Development environment

    Software environment:
        KEIL MDK-ARM 5.34.0
        IAR EWARM 8.50.1
    
    Supported chips:
        N32H730  
        N32H735   
        N32H735EC
        N32H760
        N32H762
        N32H765
        N32H765EC
        N32H785
        N32H785EC
        N32H787

3. How to use
    
    System configuration:
        1, clock source: HSI + PLL
        2, clock frequency: M7: 600MHz, M4: 300MHz
        3, print: PA9 - baud rate 115200

    Ethernet configuration:
        1, PHY interface: GMII
        2, Pin assignment:
            ETH1_MDC <-----> PC1
            ETH1_MDIO <-----> PA2
            ETH1_GMII_RXDV <-----> PA7
            ETH1_GMII_TXD0 <-----> PG13
            ETH1_GMII_TXD1 <-----> PG12
            ETH1_GMII_TXD2 <-----> PE3
            ETH1_GMII_TXD3 <-----> PE2
            ETH1_GMII_TXD4 <-----> PI4
            ETH1_GMII_TXD5 <-----> PI5
            ETH1_GMII_TXD6 <-----> PI6
            ETH1_GMII_TXD7 <-----> PI7
            ETH1_GMII_TXEN <-----> PG11
            ETH1_GMII_RXD0 <-----> PC4
            ETH1_GMII_RXD1 <-----> PC5
            ETH1_GMII_RXD2 <-----> PH6
            ETH1_GMII_RXD3 <-----> PH7
            ETH1_GMII_RXD4 <-----> PE12
            ETH1_GMII_RXD5 <-----> PE13
            ETH1_GMII_RXD6 <-----> PE14
            ETH1_GMII_RXD7 <-----> PE15
            ETH1_GMII_RXCLK <-----> PA1
            ETH1_GMII_COL <-----> PH3
            ETH1_GMII_CRS <-----> PA0
            ETH1_GMII_RXER <-----> PB10
            ETH1_GMII_TXER <-----> PB2
            ETH1_GMII_TXCLK <-----> PC3
            ETH1_GMII_GTXCLK <-----> PF5
            ETH1_CLK125 <-----> PD10

    Usage:
        1, Modify NETBIOS_HOST_NAME as needed.
        2, Compile and download the program to run, the serial port will print the local IP address, subnet mask, gateway and other information.
        3, After completing the mapping between NetBIOS name and local IP address, the serial port will print the NetBIOS name.
        4, Ping the NetBIOS name in the printed message on the computer, you can see that the IP address information in the reply message is the same as the local IP address of the development board.

4. Attention
    1, The PHY chip you are using may differ from the default selection in this demo. Please switch or add definitions for other PHYs in bsp_eth.h. Note that the PHY_ADDR value must match the hardware design.
    2, NetBIOS name must be less than 15 characters
    3, The default static IP address of the development board is 192.168.0.32. When using a static IP address, make sure that the board is on the same network segment as the computer and that there are no IP address conflicts.

