[参考译文] CC1310：如何通过跳频功能动态选择要在 TI 15.4网络中的收集器和传感器节点上使用的通道？

https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1189635/cc1310-how-to-dynamically-select-channels-to-use-on-collector-and-sensor-nodes-in-ti-15-4-network-with-frequency-hopping

您好！

收集器/传感器节点示例代码中的默认设置似乎表明、我们应该将 FH_ASYNC_CHANNEL_MASK 中的所有通道都包括在内 、如下代码所示：

// subg/config.h
/*!
 Channel mask used when CONFIG_FH_ENABLE is true.
 Represents the list of channels on which the device can hop.
 The actual sequence used shall be based on DH1CF function.
 It is represented as a bit string with LSB representing Ch0.
 e.g., 0x01 0x10 represents Ch0 and Ch12 are included.
 */
#define CONFIG_FH_CHANNEL_MASK        { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, \
                                        0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, \
                                        0xFF, 0xFF, 0xFF, 0xFF, 0xFF }

/*!
 List of channels to target the Async frames
 It is represented as a bit string with LSB representing Ch0
 e.g., 0x01 0x10 represents Ch0 and Ch12 are included
 It should cover all channels that could be used by a target device in its
 hopping sequence. Channels marked beyond number of channels supported by
 PHY Config will be excluded by stack. To avoid interference on a channel,
 it should be removed from Async Mask and added to exclude channels
 (CONFIG_CHANNEL_MASK).
 */
#define FH_ASYNC_CHANNEL_MASK         { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, \
                                        0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, \
                                        0xFF, 0xFF, 0xFF, 0xFF, 0xFF }

在测试过程中、我发现、如果我们按照 CONFIG_FH_CHANNEL_MASK 中的定义减少实际使用的通道数量、如下所示：

#define CONFIG_FH_CHANNEL_MASK        { 0x55,0x55,0x55,0x55,0x55,0x55, \
                                        0x55,0x55,0x55,0x55,0x55,0x55, \
                                        0x55,0x00,0x00,0x00,0x00 }

传感器节点加入网络所需的时间将显著减少、大致与实际使用的通道数成正比。  理论上、如果我们对不同网络使用不同的信道、即使这些网络在附近共存也是如此。 它们不会相互干扰。 我们还可以避免来自其他系统的干扰。

我的问题是：如何为不同的网络动态设置不同的信道？ 是否应该将所有通道都包含在  FH_ASYNC_CHANNEL_MASK 中、即使我们实际上没有将所有通道用于跳频？  

请提供建议。

 提前感谢。