CC1310在DSSS下的扩频编码

请问一下,CC1310配置为Long rang mode时（采用DSSS）其扩频编码能否配置，如果可以配置，该如何配置？

Viki Shi：

The LRM scheme in the CC1310 comprises of a convolutional encoder of rate ½ is followed by a direct sequence spreader (DSSS) with variable spreading length. The output of that module is finally fed to the 2-(G)FSK modulator. The modulation kernel (symbol rate, frequency deviation) can be user defined.

可以使用SmartRF Studio修改spreading (Override Editor"):

0x505C,0x0000; 1 x spreading

0x505C,0x0100; 2 x spreading

0x505C,0x0303; 4 x spreading

0x505C,0x073C; 8 x spreading

SmartRF Studio中也包含一个Long range mode的例程，10 ksps，8 x spreading ， 625 bps. 你可以通过修改spreading来获得更高的比特率

也可以通过SmartRF Studio修改symbol rate，symbol rate和deviation的关系请查看：https://e2echina.ti.com/question_answer/wireless_connectivity/hw_rf_proprietary/f/45/t/149784