20-101-1221 Rabbit Semiconductor, 20-101-1221 Datasheet - Page 87

• Manufacturer Part Number: 20-101-1221
• Description: RCM4400W (JAPAN TELEC CERTIFIED)
• Manufacturer: Rabbit Semiconductor
• Series: RabbitCore®r

Specifications of 20-101-1221

• Frequency: 2.4GHz
• Modulation Or Protocol: 802.11 b
• Power - Output: 16dBm
• Voltage - Supply: 3.3V
• Current - Receiving: 450mA
• Current - Transmitting: 450mA
• Data Interface: Connector, 2 x 25 Header
• Memory Size: 512K Flash, 1MB SRAM
• Antenna Connector: SMA
• Operating Temperature: -20°C ~ 85°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Applications: -
• Sensitivity: -
• Data Rate - Maximum: -
• Other names: 316-1147

6.3.3 Other Key Function Calls
Remember to call
after all the Wi-Fi parameters have been defined. The
sock_init()
Wi-Fi interface will be up automatically as long as you configured Dynamic C at compile
time with one of the
macros. Otherwise the Wi-Fi interface is neither up nor
TCPCONFIG
down, and must be brought up explicitly by calling either
or
ifup(IF_WIFI0)
. You must bring the interface down when you configure
ifconfig(IF_WIFI0,…)
Dynamic C at run time before modifying any parameters that require the interface to be
down (see Section 6.3.2) by calling
or
.
ifdown(IF_WIFI0)
ifconfig(IF_WIFI0,…)
Then bring the interface back up.
Finally, no radio transmission occurs until you call
.
tcp_tick(NULL)
Instead of executing the above sequence based on
, you could use
sock_init()
sock_
as a debugging tool to transmit packets (ARP, DHCP, association,
init_or_exit(1)
and authentication) while bringing up the interface and to get the IP address.
User’s Manual
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