如何改变PWMXDCL和PWMXDCH寄存器的二进制数改变占空比

大家好，我是PIC单片机的新手。我已经熟悉了这张照片大约3个月，并试图做所有这一切都提供了PIC。我在这个PIC上有一个PWM问题。我认为这是错误的，我没有完全理解PIC的过程，不熟悉这些图片的编程。我发现这个代码在线输出68%个占空比。我实现了代码，我确实收到了RC5（PWM1）的输出，它几乎是VDD的68%。当我试图改变占空比时，我的问题就发生了。数据表表示“PWMXDCL和PWMXDCH寄存器配置占空比”，但是当我为这两个寄存器改变二进制时，我不改变占空比。我也不确定如何改变PWMXDCL和PWMXDCH寄存器的二进制数改变占空比。如果有人能解释这将是伟大的！我唯一能改变引脚RC5（PM1）输出电压的方法是通过改变PR2定时器。这是有意义的，因为我根据数据表改变周期：“PWM周期由time2的PR2寄存器指定”。如果有人能把我带到正确的方向，我们会很感激。编译器：XC8（V1.44）IDE：MPLAB X IDE V4.05PIC:PIC16LF150 3KIPIT3代码发布在下面的TXT文档中



      以下为原文

    Hello Everyone,
I am new to pic micro controllers. I have been getting familiar with this pic for about 3 months now and trying to do everything this pic has to offer. I am having an issue with the PWM on this pic. I believe this is error from me not fully understanding the process of the pic yet and unfamiliar with programming these pics. I have found this code online that outputs a 68% duty cycle. I implemented the code and I do receive an output on RC5 (PWM1) which is almost 68% of VDD. My problem occurs when i try to change the Duty Cycle. The datasheet says "The PWMxDCL and PWMxDCH registers configure the duty cycle." yet when i change the binary for these two registers, I don't change the duty cycle. I am also not sure how changing the binary number of the PWMxDCL and PWMxDCH registers change duty cycle. If someone can explain this that would be great!! The only way i can change the output voltage of pin RC5(PM1) is by changing the PR2 timer. This makes sense because I'm changing the period according to the datasheet "The PWM period is specified by the PR2 register of Timer2". If anyone can lead me in the right direction it would be much appreciated.

Compiler: XC8 (v1.44)
IDE: MPLAB X IDE v4.05
PIC: PIC16LF1503
PICKIT3
Code is posted in a txt document below

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