Mikroelektronika MIKROE-724 データシート

mikroBasic PRO for dsPIC30/33 and PIC24

MikroElektronika

489

SPI_Ethernet_arpResolve

sub function SPI_Ethernet_arpResolve(dim byref ip as byte[4], dim tmax as 

byte) as word 

Description This is ARP module routine. It sends an ARP request for given IP address and waits for ARP reply. If 

the requested IP address was resolved, an ARP cash entry is used for storing the configuration. ARP 

cash can store up to 3 entries. For ARP cash structure refer to 

“eth_enc28j60LibDef.mbas”

 file 

in the compiler’s Uses folder.

Parameters - 

ip

: IP address to be resolved. 

- 

tmax

: time in seconds to wait for an reply. 

- MAC address behind the IP address - the requested IP address was resolved. 

- 

0

 - otherwise. 

Ethernet module has to be initialized. See SPI_Ethernet_Init.

  IpAddr as byte[4]  ‘ IP address

  ... 

  IpAddr[0] = 192 

  IpAddr[0] = 168 

  IpAddr[0] = 1 

  IpAddr[0] = 1 

  ...

  SPI_Ethernet_arpResolve(IpAddr, 5) ‘ get MAC address behind the above IP 

The Ethernet services are not stopped while this routine waits for ARP reply. The incoming packets will 

be processed normaly during this time.

SPI_Ethernet_sendUDP

sub function SPI_Ethernet_sendUDP(dim byref destIP as byte[4], dim sourcePort, 

destPort as word, dim pkt as ^byte, dim pktLen as word) as byte 

Description This is UDP module routine. It sends an UDP packet on the network.
Parameters - 

destIP

: remote host IP address. 

- 

sourcePort

: local UDP source port number. 

- 

destPort

: destination UDP port number. 

- 

pkt

: packet to transmit. 

- 

pktLen

: length in bytes of packet to transmit. 

- 

1

 - UDP packet was sent successfully. 

- 

0

 - otherwise. 

Ethernet module has to be initialized. See SPI_Ethernet_Init.

  IpAddr as byte[4]  ‘ remote IP address

  ... 

  IpAddr[0] = 192 

  IpAddr[0] = 168 

  IpAddr[0] = 1 

  IpAddr[0] = 1 

  ...

    SPI_Ethernet_sendUDP(IpAddr,  10001,  10001,  “Hello”,  5)  ‘  send  Hello 

None.