Simple circuit diagram 1. When the antenna receives the signal, since the signal is very weak, it needs to be amplified, which requires LNA (low noise amplifier). Then it passes through a bandpass fil...
UCB0SPI is used, and the initialization function is as follows: void SPI_Inint() { P3SEL |= BIT1+BIT2+BIT3; UCA0CTL 1 |= UCSWRST; UCA0CTL0 |= UCSYNC+UCMSB+UCMODE_0; //Synchronous mode MSB first, 3-wir...
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