Mikroelektronika MIKROE-350 データシート

380

- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 6

sub function Spi_Ethernet_UserUDP(dim remoteHost as ^byte, dim
remotePort 

as word, dim destPort as word, dim reqLength as word)

- 

0

- there should not be a reply to the request. 

- Length of UDP reply data field - otherwise. 

This is UDP module routine. It is internally called by the library. The user
accesses to the UDP request by using some of the Spi_Ethernet_get routines.
The user puts data in the transmit buffer by using some of the Spi_Ethernet_put
routines. The function must return the length in bytes of the UDP reply, or 0 if
nothing to transmit. If you don't need to reply to the UDP requests, just define
this function with a return(0) as single statement. 

Parameters:

- 

remoteHost:

client's IP address. 

- 

remotePort:

client's port. 

- 

destPort:

port to which the request is sent. 

- 

reqLength:

UDP request data field length. 

Note: The function source code is provided with appropriate example projects.
The code should be adjusted by the user to achieve desired reply.

Ethernet module has to be initialized. See Spi_Ethernet_Init.

This function is internally called by the library and should not be called by the
user's code.