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board. The Nios II must utilize the SimpleLink device driver port to properly communicate with the CC3100.
Communication with CC3100 is initiated on the Nios II by setting the WiFi_HIB_N line low. The CC3100 will
synchronize with the Nios II by toggling the WiFi_IRQ signal. This will trigger the ISR written for the SimpleLink
driver. The Nios II will drive WiFi_HIB_N line high to complete the response and allow the driver to complete the
initialization process. The Nios II will proceed to configure the CC3100 device into an access point mode with
DHCP and HTTP web server enabled. WLAN event handler is written to process connection and disconnection
events. HTTP event handler is written to process POST/GET request by updating token values passed from the
server. The same sensor data supplied to the CC2650 is transmitted to the CC3100 for display in a status
webpage. In addition to the displaying the sensor data, the webpage offers users a method to control the LEDs
located on the DECA evaluation bard.
3.5 Beagle Bone Black Board Support
The DEV-RF002 was designed to interface with the Beagle Bone Black. The module has been verified
electrically to interface with the BBB.
3.5.1
Software Support
The Beagle Bone Black will require a port of the SimpleLink device driver in order to properly communicate with
the CC3100. Additionally, a SPI device driver with ISR is required to interface with the CC2650.
4 Power Requirements
4.1 Voltage and Current Requirements
The DEV-RF002 requires that a 3.3V power supply be connected to pins 3 & 4 of the P1 pin header. Both the
CC2650 and CC3100 devices have on chip voltage regulators that provide the necessary power regulation. Both
devices can accept up to a 3.6V power supply.
Device
CC3100
CC2650
Totals
Table 4-1 DEV-RF002 Voltage and Current by device
Voltage Level
3.3V
TX (54 OFDM) 223mA
RX (54 OFDM) 53mA
TX (+5 dBm)
3.3V
RX
TX
RX
Current consumption
active
9.1mA
5.9mA
232.1mA
58.9mA
13
Current consumption
hibernate
115uA Sleep
1uA
116uA
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