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CC2530外部晶振是否必须程序配置才能启动？

wing burst
Prodigy 250 points
Other Parts Discussed in Thread: CC2530

请问刚出厂的CC2530芯片外接的32MHz晶振和32.768kHz晶振是不是都需要用户自己向芯片中烧写相应的配置程序才能启动？还是说新出厂的芯片只要上电后，首先自动启动RC16MHz晶振，然后芯片内部会自动由RC16MHz晶振跳转至32MHz外部晶振？

32MHz晶振和32.768kHz晶振起振前后的电压大概都是多少呢？

CC2530无法烧入程序和外部晶振起振与否相关吗？

非常期待您的回复！谢谢！

  • 0
    TI__Genius 9970 points

    RC Oscillator 和 Crystal 的转换需要配置寄存器。晶振电平请测量TI参考设计板。

    The device has one internal system clock, or main clock. The source for the system clock can be either
    the 16-MHz RC oscillator or the 32-MHz crystal oscillator. Clock control is performed using the
    CLKCONCMD SFR register.

    请在TI网站下载查看文档：

    CC253x System-on-Chip Solution for 2.4-GHz IEEE 802.15.4 and ZigBee® Applications

    Literature Number: SWRU191C

    April 2009 – Revised January 2012