On Time RTOS-32 Documentation

RTIP-32 Programming Manual

RTIP-32 Reference Manual

RTIP-32 Configuration

Simplified Networking API

Extended RTIP-32 API

Function vf_init

Function xn_add_dns_server

Function xn_add_host_table_entry

Function xn_clear_host_cache

Function xn_delete_host_table_entry

Function xn_get_domain_name

Function xn_has_dns

Function xn_set_domain_name

Function xn_set_server_list

Function xn_name2ip_addr

Function xn_abort

Function xn_arp_send

Function xn_attach

Function xn_bootp_res

Function xn_bootp

Function xn_debug_error

Function xn_getlasterror

Function xn_geterror_string

Function xn_interface_close

Function xn_interface_info

Function xn_interface_mcast

Function xn_interface_open

Function xn_interface_open_config

Function xn_interface_opt

Function xn_interface_ethernet_statistics

Function xn_interface_statistics

Function xn_ip_set_option

Function xn_ping

Function xn_pkt_data_max

Function xn_rarp

Function xn_rt_add

Function xn_rt_cycle_gw

Function xn_rt_del

Function xn_rt_replace

Function xn_rtip_exit

Function xn_rtip_init

Function xn_rtip_restart

Function xn_set_ip

Function xn_tcp_is_connect

Function xn_tcp_is_read

Function xn_tcp_is_write

Function xn_wait_tcp_output

Function xn_autoanswer

Function xn_autologin

Function xn_hangup

Function xn_scriptlogin

Function xn_autoip

Function xn_ioacc_init

Function xn_nat_init

Function xn_arp_add

Function xn_arp_del

Function xn_arp_remote

Function xn_arp_cache_lookup

Function xn_send_ethernet_frame

Function xn_callbacks

Function cb_wr_screen_string_fnc

Function cb_rs232_connection_lost_fnc

Function cb_error_report_fnc

Function cb_raw_mode_in_char_fnc

Function cb_autoip_new_ip_fnc

Function cb_autoip_no_ip_fnc

Function cb_packetin_isr

Function cb_packetin_task

Function cb_packetout

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Function xn_rarp

Send a RARP request to look up my IP number.

int xn_rarp(int iface_no);

Parameters

iface_no

Interface number (returned by xn_interface_open, xn_interface_open_config, or xn_attach).

return value

Returns 0 if successful, otherwise SOCKET_ERROR. If an error occurred, call xn_getlasterror and xn_geterror_string to return the error value. Section Error Codes further describes each error.

Possible values for this function are:

Value	Meaning
EBADIFACE	Invalid interface number (RTIP-32 specific).
EIFACECLOSED	Interface closed (RTIP-32 specific).
ENETDOWN	Network is down, i.e. send failed.
ENOPKTS	Out of DCUs, i.e. packets.
ENOTINITIALIZED	RTIP-32 has not been initialized (xn_rtip_init has not been called).
EOUTPUTFULL	Output list full (RTIP-32 Specific).
ERENTRANT	Function in progress error (xn_rarp was reentered).
ERTFULL	Routing table full (RTIP-32 specific).
ETIMEDOUT	Operation timed out.

RARP will broadcast an RARP request which will prompt any RARP servers on the net to reply with the machine's IP address.

xn_bootp and xn_bootp_res provide a similar/superior capability.

Left Extended RTIP-32 API

Function xn_pkt_data_max

Down Function xn_rt_add