尝试在PIC16F15323上使用PWM3但是没有出现在引脚上

我想使用PWM3来驱动一个电压来控制LED驱动芯片中的电流，但是没有出现在引脚上。我使用PPS模块将输出从PWM3指向RC3（RC3PPS= PWM3OUT；在PPS解锁和PPS锁之间），并且tiSISC被设置为0x04（我使用RC2作为一个比较器的输入）。TMR2＝0x60；T2CKCONN＝0x01；T2HLT＝0x00；T2RST＝0x00；T2TMR＝0x00；T2CONTITES.TMR2ON＝1；PWM3配置如下：PWM3CONC= 0x80；PWM3DCH＝0x00；PWM3DCL＝0x00；应用调整PWM3DCH和PWM3DCL以获得适当的输出电压。除了它没有。输出保持在0V。我已经检查了短路到地面。有没有其他地方我没有发现和配置的寄存器？



      以下为原文

    I'm tring to use PWM3 to drive a voltage to control the current in an LED driver chip, but there's nothing appearing on the pin. I'm using the PPS module to point the output from PWM3 to RC3 ( RC3PPS = PWM3OUT;  in between PPS unlock and PPS lock), and TRISC is set to 0x04 (I'm using RC2 as an input to one of the comparators).
TMR2 is configured as follows:
    T2CON = 0x60;
    T2CLKCON = 0x01;
    T2HLT = 0x00;
    T2RST = 0x00;
    T2PR = 0xFF;
    T2TMR = 0x00;
    T2CONbits.TMR2ON = 1;

PWM3 is configured as follows:
    PWM3CON = 0x80;   
    PWM3DCH = 0x00;      
    PWM3DCL = 0x00;


The application adjusts PWM3DCH and PWM3DCL to get the appropriate output voltage, except that it doesn't. The output stays at 0V. I've checked for shorts to ground. Is there some other register somewhere that I haven't spotted and configured?