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CC2640 BLE stack system tick疑问



cc2460 BLE Software Develop’s Guide》中说RTOS clock tick都来源于RTC,而且默认配置为10us,但是RTC模块中的时钟来源都是32KHz时钟,Tick1/32768=0.000030517578125s约为30.5us,这样时间岂不是不满足了吗?

  • 这俩不是一个东西,具体解释请看这边: https://e2e.ti.com/support/wireless_connectivity/bluetooth_low_energy/f/538/t/423756

  • 你好:

           1、您提供的链接里,TIRTOS的默认系统时钟源是RTC Channel o,但是系统配置的tick会转换为对应的RTC时钟,来满足系统的时钟要求。

                 但是还说了,用RTC clock回带来时钟的不精确,引起误差,那么这个误差来源是不是OS Tick 和RTC tick的不对应引起的呢?

           2、我在TI BLE Wiki中暂时没找到这方面的说明,能方便提供一个链接吗?