华大MCU时钟控制器
实名吐槽：手册写的寄存器，根本让人看不懂。参数是什么意义，如何配置？例程也没有。说不能超过这个范围，所以呢？
我实际测试80s时间，当写入-127的时候，rtc间隔时间是34s；当写入+127的时候，rtc间隔时间是108s。
我的天哪，到底能不能用？
能用的话，怎么用，求官方解答！
我的理解校准位从-128~+127，那就是有256档可以给你调节，上面有个中心code0也就是默认值，你把这值往负数调就变慢。往正数调就变快。
至于能不能用，要取决你的项目，这数据实打实的标明了32.768Khz的频率范围是27.853Khz~37.683Khz.也就是精度是正负15%。
你评估自己的项目能忍受这个精度就用，不能忍受这个精度就用外部的32768 wubangmi 发表于 2023-12-29 08:59
我的理解校准位从-128~+127，那就是有256档可以给你调节，上面有个中心code0也就是默认值，你把这值往负数 ...
谢谢您的回复，但是我觉得您理解的可能有所偏差，确实是挡位调节，但是这个挡位跟上下限制关系不大。 �ա���XTAL=8MHz and XTAL32=32768 divided by 8192 are used as the reference clock for this demo.
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�ա���2.LRC freq. is 42968 Hz
a=92
�ա���2.LRC freq. is 42968 Hz
a=93
�ա���2.LRC freq. is 42968 Hz
a=94
�ա���2.LRC freq. is 42968 Hz
a=95
�ա���2.LRC freq. is 42968 Hz
a=96
�ա���2.LRC freq. is 42968 Hz
a=97
�ա���2.LRC freq. is 42968 Hz
a=98
�ա���2.LRC freq. is 42968 Hz
a=99
�ա���2.LRC freq. is 42968 Hz
a=100
�ա���2.LRC freq. is 42968 Hz
a=101
�ա���2.LRC freq. is 42968 Hz
a=102
�ա���2.LRC freq. is 42968 Hz
a=103
�ա���2.LRC freq. is 43945 Hz
a=104
�ա���2.LRC freq. is 42968 Hz
a=105
�ա���2.LRC freq. is 42968 Hz
a=106
�ա���2.LRC freq. is 42968 Hz
a=107
�ա���2.LRC freq. is 42968 Hz
a=108
�ա���2.LRC freq. is 42968 Hz
a=109
�ա���2.LRC freq. is 42968 Hz
a=110
�ա���2.LRC freq. is 42968 Hz
a=111
�ա���2.LRC freq. is 42968 Hz
a=112
�ա���2.LRC freq. is 42968 Hz
a=113
�ա���2.LRC freq. is 42968 Hz
a=114
�ա���2.LRC freq. is 42968 Hz
a=115
�ա���2.LRC freq. is 42968 Hz
a=116
�ա���2.LRC freq. is 43945 Hz
a=117
�ա���2.LRC freq. is 42968 Hz
a=118
�ա���2.LRC freq. is 43945 Hz
a=119
�ա���2.LRC freq. is 42968 Hz
a=120
�ա���2.LRC freq. is 42968 Hz
a=121
�ա���2.LRC freq. is 42968 Hz
a=122
�ա���2.LRC freq. is 42968 Hz
a=123
�ա���2.LRC freq. is 42968 Hz
a=124
�ա���2.LRC freq. is 42968 Hz
a=125
�ա���2.LRC freq. is 42968 Hz
a=126
�ա���2.LRC freq. is 42968 Hz
a=127
�ա���2.LRC freq. is 42968 Hz
a=-128
�ա���2.LRC freq. is 12695 Hz
a=-127
�ա���2.LRC freq. is 13671 Hz
a=-126
�ա���2.LRC freq. is 13671 Hz
a=-125
�ա���2.LRC freq. is 13671 Hz
a=-124
我实测了这个校准寄存器和LRC的频率的关系，发现结论：这个校准寄存器不建议使用！
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