Renesas APIs ***

最新推荐文章于 2025-09-12 22:43:06 发布

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最新推荐文章于 2025-09-12 22:43:06 发布

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文章标签：网络

本文详细介绍了嵌入式系统中使用的网络编程API，包括TCP/UDP套接字操作、包池管理和时间获取等功能。重点讲解了如nx_packet_pool_create、nx_tcp_socket_bytes_available等函数的具体使用方法。

nx_api.h

nx_ip_address_get

nx_packet_pool_create

nx_packet_pool_info_get

nx_tcp_socket_bytes_available

nx_tcp_socket_info_get

nx_tcp_socket_mss_get

系统重启

NVIC_SystemReset

static ULONG _get_time(void)
{
    ULONG seconds, milliseconds;
    UINT status;

    /* Get local time as set by SNTP client */
    status = nx_sntp_client_get_local_time(&g_sntp_client, &seconds, &milliseconds, NX_NULL);
    if (status != NX_SUCCESS)
        return 0;

    /* Convert to Unix epoch */
    seconds -= UNIX_TO_NTP_EPOCH_SECS;

    return seconds;
}

TCP/UDP

nx_tcp_client_socket_bind
nx_tcp_server_socket_accept
nx_tcp_server_socket_listen
nx_tcp_socket_create

/* APIs for packet pool. */

/* APIs for packet pool. */
#define nx_packet_allocate                              _nxe_packet_allocate
#define nx_packet_copy                                  _nxe_packet_copy
#define nx_packet_data_append                           _nxe_packet_data_append
#define nx_packet_data_extract_offset                   _nxe_packet_data_extract_offset
#define nx_packet_data_retrieve                         _nxe_packet_data_retrieve
#define nx_packet_length_get                            _nxe_packet_length_get
#define nx_packet_pool_create(p, n, l, m, s)            _nxe_packet_pool_create(p, n, l, m, s, sizeof(NX_PACKET_POOL))
#define nx_packet_pool_delete                           _nxe_packet_pool_delete
#define nx_packet_pool_info_get                         _nxe_packet_pool_info_get
#define nx_packet_pool_low_watermark_set                _nxe_packet_pool_low_watermark_set
#define nx_packet_release(p)                            _nxe_packet_release(&p)
#define nx_packet_transmit_release(p)                   _nxe_packet_transmit_release(&p)