Chengdu Ebyte Electronic Technology Co., Ltd.
Copyright ©2012–2018
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
7
IRQ pin can also be disconnected. The SPI query mode can be used to obtain the interrupt status. However, it is
recommended to use the external interrupt of the MCU.
SPI communication rate should not be set too high, usually around 1Mbps.
Please refer to “Operating Modes and Timing” for SI4463 status switch
，
the switch between TX and RX should be
through Ready, can not be switched directly.
Re-initialize register configuration when the chip is idle for higher stability.
For controlling GPIO2 ,GPIO3 externally
，
pin status is as follows
：
In tx mode
：
GPIO2 = 0; GPIO3 = 1;
In rx mode
：
GPIO2 = 1; GPIO3 = 0;
If the SI4463 is required to control itself, the mode of the configuration pins can be as follows when
the program is initialized:
SI44XX_GPIO_CONFIG( 0, 0, 32|0x40, 33|0x40, 0, 0, 0 );
5 Basic application
5.1 Basic circuit diagram
6 FAQ
6.1 Communication range is too short
The communication distance will be affected when obstacle exists.
Data lose rate will be affected by temperature, humidity and co-channel interference.
The ground will absorb and reflect wireless radio wave, so the performance will be poor when testing near ground.
Sea water has great ability in absorbing wireless radio wave, so performance will be poor when testing near the sea.
The signal will be affected when the antenna is near metal object or put in a metal case.
Power register was set incorrectly, air data rate is set as too high (the higher the air data rate, the shorter the
