Timer2与PR2匹配不会触发任何PORT输出更改

您好，当我使用全桥单相逆变器的90度查找表时，我遇到了一个问题。我把整个360度分为4个90度的部分。我的问题是当我从90度移动到180度时，计时器2与PR2寄存器匹配不会触发我的端口引脚的任何输出变化，但是当我使用180度查找表时，我没有任何麻烦。由于空间限制，我需要使用90度查找表。我将附加中断服务例程代码。希望能找到一个解决方案。更多的项目描述，我使用2个半桥模式模块。PWM频率是24K，输出应该是50赫兹正弦波。关于，罗兰多



      以下为原文

    Hello, I have a problem when I use a 90 degrees lookup table for a full bridge single phase inverter. I divided the whole 360 degrees into 4 parts of 90 degrees each. My problem is when I move from 90 degrees to 180 degrees, the timer 2 match with the PR2 register doesn't trigger any output change on my PORT pins, HOWEVER when I use a 180 degrees lookup table I don't have any trouble. I need to use the 90 degrees lookup table due to space constraints.
I will attach the interrupt service routine code. Hope we can find a solution to this.

More description of the project, I'm using 2 half bridge mode modules. The PWM frequency is 24K, and the output should be 50 Hz sine wave.

Regards,

Rolando
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