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SI4356-DK Scheda tecnica(PDF) 4 Page - Silicon Laboratories |
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SI4356-DK Scheda tecnica(HTML) 4 Page - Silicon Laboratories |
4 / 16 page Si4356-DK 4 Rev. 1.2 USB Debug Adapter in the “Serial Adapter” section. Next, the C2 Debug Interface must be selected. Once all the selections are made, click the OK button to close the window. 8. Click the Connect button in the toolbar or select Debug Connect from the menu to connect to the device. 9. Download the project to the target by clicking the Download Code button in the toolbar and browsing to the 4356-rfstick-dir.hex file of the out folder of the Si4356 Development Kit RX side code project. 10. Click the Disconnect button in the toolbar to start the operation of the downloaded example code. To operate the RFStick without USB connection, insert two AAA batteries in the battery holder on the bottom side of the board and set the power switch to “Battery” position. 4. Operating the Direct Mode Reception Demo The Si4010 keyfob transmitter and the Si4356 RFStick receiver are the transmitter and receiver nodes used in the direct mode reception demo. After setting up the nodes according to the previous chapter, the Si4356 has to be configured for the RF parameters of the demo, using the SEL0 – SEL3 slide switches and the SW1-1 to SW1-4 DIP switches on the RFStick. SEL0 and SEL1 set the center frequency according to Table 2. The part number of the board contains information on the frequency band (434 or 868) that the matching circuit of the board was designed for. Using the board in a different band results in significantly reduced sensitivity. The buttons on the keyfob have been programmed to transmit various packet formats. Details on the RF settings and packet formats associated with each button are provided in Section 5. The Si4356 RFStick will only respond to keyfob button transmissions that it has been configured to receive. The slide and DIP switches on the Si4356 RFStick are used to configure the Si4356 IC. Table 3 and Table 4 highlight the required configurations for each keyfob button. Note that the keyfob button names have been defined according to their position when the keyfob LED is oriented on top. Table 2. Center Frequency Setting Kit Part Number Center Freq. SEL0 SEL1 4356-LEDK1W-434 433.92 MHz GND VDD 4356-LEDK1W-868 868.30 MHz VDD OUT1 Table 3. Si4356 RFStick Configurations for Si4356-LEDK1W-434 Kit Key Fob Button SEL2 SEL3 SW1-1 SW1-2 SW1-3 SW1-4 Valid Packet RX Right OUT1 OUT1 OFF OFF OFF OFF LED2 and 3 Left OUT1 OUT1 OFF OFF OFF OFF LED2, 3 and 4 Middle OUT1 GND ON OFF OFF OFF LED2 and 4 Bottom GND GND ON ON OFF OFF LED4 Top GND GND ON ON OFF OFF LED3 Note: The slide and DIP switches MUST be configured prior to powering up the board. |
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