//! constants for selecting the bit rate for data TX (and RX)
//! These are defined for write (with just a shift) the TX_FCTRL register
#define DWT_BR_110K 0 //!< UWB bit rate 110 kbits/s
#define DWT_BR_850K 1 //!< UWB bit rate 850 kbits/s
#define DWT_BR_6M8 2 //!< UWB bit rate 6.8 Mbits/s
哪位大佬指导这三个参数,对通讯距离有多大影响?