The power supply circuit in which the structural model, the system clock circuit, the system reset circuit,
the Flash / SDRAM memory interface circuit is the basic circuit of the S3C2410X microprocessor running.
JTAG interface, Ethernet interface, serial port and the wireless transceiver module (CC2430 and its peripheral
circuits constitute). Is the coordination function of the interface circuit. The JTAG standard is mainly used for
chip internal testing and system simulation, debugging. Standard JTAG interface has four lines. And the
connection is simple. MAX232 and RS232 serial port functions. Used to coordinate and GPRS devices to
transfer data between. GPRS uses the existing products on the market, the application comes with some small
modifications, and so GPRS automatically send and receive data. The wireless transceiver module is mainly
used for the establishment and initialization of ZigBee star network, and data between multiple ZigBee end
devices to send and receive. the system hardware design