Wiring Diagram
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1.Chip internal integration (POR) (if only internal reset, RST N feet only need to be raised or
suspended), T1 time for power reset time, about 0.5ms
2. T2 is the crystal oscillator stabilization time, about 10ms, and then the register is initialized
by the MCU
3. After the register is initialized, the chip can start transmitting or receiving data
4.In addition to internal automatic reset, there are two other ways to reset the chip:
a、 RST_N Pin reset: RST_N Reset the chip for low time
b、 Software reset: first write 0x1e[0] register as' 1 ', enabling software reset function, and '1'
to write '1' on 0x01[7] to complete the reset operation. Using internal POR and software reset
functions, RST N pins can be saved to save MCU resources, while RST N can be suspended or up
to VDD33.
Power-on initialization
Waiting for power-on
reset(T1)
Initialization register
loading finished
Wait for the crystal
to stabilize(T2)
Picture 13-2