EVB-B1+ WIZnet, EVB-B1+ Datasheet - Page 86

• Manufacturer Part Number: EVB-B1+
• Description: Development Boards & Kits - ARM W3150A+EVAL BOARD BASED ON AVR
• Manufacturer: WIZnet

Specifications of EVB-B1+

• Rohs: yes
• Product: Evaluation Boards
• Interface Type: RS-232, SPI
• Operating Supply Voltage: 3.3 V, 5 V
• Data Bus Width: 8 bit
• Dimensions: 50 mm x 40 mm
• Processor Series: ATmega128

saves network information. When performing check_DHCP_state(), check_DHCP_Timeout() is called in case
that DHCP message is not received during the DHCP_WAIT_TIME or received DHCP message from DHCP
server is not expected, to retransmit DHCP message to DHCP server. If the retransmission of DHCP
message is repeated as much as MAX_DHCP_RETRY, it transmits DHCP_DISCOVER message to DHCP
server after it initializes all the variables to start the connection of DHCP server and DHCP message.
void init_dhcp_client(SOCKET s,
void (*ip_update)(void),
void (*ip_conflict)(void))
u_int getIP_DHCPS(void)
void check_DHCP_state(SOCKET s)
void set_DHCP_network(void)
char parseDHCPMSG
(SOCKET s, u_int length)
void check_DHCP_Timeout(void)
char check_leasedIP(void)
void reset_DHCP_time(void)
void DHCP_timer_handler(void)
void send_DHCP_DISCOVER
(SOCKET s)
void send_DHCP_REQUEST
(SOCKET s)
void
send_DHCP_RELEASE_DECLINE
(SOCKET s,char msgtype)
u_int init_dhcpc_ch(SOCKET s)
u_int select(SOCKET s, u_char func)
Function Name
© Copyright 2006 WIZnet Co., Inc. All rights reserved.
<Table 3-36: Reference Functions in DHCP Client>
Initializes DHCP Client
the server
Manages
obtained from DHCP Server
Applies
obtained from DHCP server to
W3150A
Analyzes and processes DHCP
message
Retransmits the DHCP message
when DHCP connection Timeout
occurs
Check if the IP obtained from DHCP
server is faced with collision.
Initializes
variables.
DHCP Timer Handler
Transmits
message to DHCP server.
Transmits
message to DHCP server.
Transmits
DHCP_DISCOVER/DHCP_DECLIN
E message to DHCP server
Creates DHCP client socket.
Informs status of socket, size of iinChip/w3150a.c
Obtains network information from
+
.
DHCP
network
Description
network
DHCP_DISCOVER
DHCP_REQUEST
Timer
information
information
related
inet/dhcp.c
inet/dhcp.c
inet/dhcp.c
inet/dhcp.c
inet/dhcp.c
inet/dhcp.c
inet/dhcp.c
inet/dhcp.c
inet/dhcp.c
inet/dhcp.c
inet/dhcp.c
inet/dhcp.c
inet/dhcp.c
Location
76