mikroElektronika PIC Microcontrollers PIC12 User Manual page 185

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Eth_Get_Ip_Hdr_Len
Prototype
unsigned short Eth_Get_Ip_Hdr_Len(void);
Returns Header length of the received IP packet.
Description Returns header length of the received IP packet. Before other data based upon the IP
protocol (TCP, UDP, ICMP) can be analyzed, the sub-protocol data must be properly
loaded from the received IP packet.
Requires The card (NIC) must be properly initialized. See
called in a proper sequence, i.e. immediately after determining that the packet received
is the IP packet.
Example
// Receive IP Header
opt_len = Eth_Get_Ip_Hdr_Len() - 20;
Eth_Load_Ip_Packet
Prototype
void Eth_Load_Ip_Packet(void);
Description Loads various IP packet data into PIC's Ethernet variables.
Requires The card (NIC) must be properly initialized. See
calls must be obeyed (see the
Example
Eth_Load_Ip_Packet();
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Eth_Init
Eth_Init
function in the supplied Ethernet example).
Ip_Event
. The function must be
. Also, a proper sequence of
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