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关于CC1101波特率更改后距离变短的现象。原来的配置波特率差不多在2kpbs,空旷距离测试差不多500m, 现在我更改波特率为76kpbs左右,但通讯距离一下变成只有20m左右,

Other Parts Discussed in Thread: CC1101

下面是用ti的软件进行配置的,参数如下,
static const uint8_t CC1101InitData[][2]=
{
{CC1101_IOCFG0, 0x00},
{CC1101_IOCFG2, 0x01}, //鐢ㄤ簬鎺ユ敹鍒版暟鎹骇鐢熶腑鏂?
{CC1101_FIFOTHR, 0x47},
{CC1101_PKTCTRL0, 0x05},
{CC1101_CHANNR, 0x96},
{CC1101_FSCTRL1, 0x08},
{CC1101_FREQ2, 0x10},
{CC1101_FREQ1, 0xA7},
{CC1101_FREQ0, 0x62},

{CC1101_MDMCFG4, 0x9B},
{CC1101_MDMCFG3, 0x83},
{CC1101_MDMCFG2, 0x13},
{CC1101_DEVIATN, 0x42},
{CC1101_MCSM0, 0x18},
{CC1101_FOCCFG, 0x1D},
{CC1101_BSCFG, 0x1C},
{CC1101_AGCCTRL2, 0xC7},
{CC1101_AGCCTRL1, 0x00},
{CC1101_AGCCTRL0, 0xB2},
{CC1101_WORCTRL, 0xFB },
{CC1101_FREND1, 0xB6},
{CC1101_FSCAL3, 0xEA},
{CC1101_FSCAL2, 0x2A},
{CC1101_FSCAL1, 0x00},
{CC1101_FSCAL0, 0x1F},
{CC1101_TEST2, 0x81},
{CC1101_TEST1, 0x35},

{CC1101_MCSM1, 0x3B },
// { CC1101_PKTLEN, RFDATLEN },
};

由于公司没有设备, 只能把参数烧进去,测试距离。

不知道大家有没有验证过的 433mhz       80kbps左右的波特率的参数,让我测试一下,看通讯距离是否会影响这么明显,谢谢大家