The reset circuit is used to restart the module and initialize. One end of the button switch SW1 is grounded, and the other end is connected to the RESET_N pin of the CC2530 chip, and the manual reset of the circuit can be realized by pressing the button switch SW1.
The JTAG interface circuit is mainly used to connect to the emulator to implement the download and debug functions of the ZigBee node program. At the same time, the module can be powered and reset by connecting with the power pin. In this design, the 1 pin of the JTAG interface is grounded, and the 2 pins are connected to VDD. The 3 pin is connected to the P2_2 pin of the CC2530 chip as the debug clock signal pin, and the 4 pin is connected to the P2_1 pin of the CC2530 chip as the debug data pin to download the program to the CC2530 chip. The 7 pin is connected to the reset circuit to implement the reset function.
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