【3138】PWR027_PSFB运行时，直流侧缓慢抬升电压到10V左右DPWM就关闭了，这是什么原因呢？

我把init_protection()中的欠压保护init_uvp()给去掉，然后缓慢抬升电压，发现当抬升到输入10V左右(输出电压达到2V)，DPWM就关闭了。

之后在寻找问题时发现，将init_protection()中的三条FaultMuxRegs.ACOMPCTRL0.bit.ACOMP_EN = 1; 给屏蔽了，电压可以继续抬升。

为了找出是哪个模拟错误，我先后把相关的模拟比较使能都关闭了，而FaultMuxRegs.ACOMPCTRL0.bit.ACOMP_EN = 1仍在，电压又无法抬升。

***********************************************************************

这是什么原因呢？  我这样调试是否有些欠妥？我关闭的模拟比较使能包括：

   init_ocp(void)中的：  //   FaultMuxRegs.DPWM0FLTABDET.bit.ACOMP_E_EN = 1;
                                         //  FaultMuxRegs.DPWM1FLTABDET.bit.ACOMP_E_EN = 1;
                                         // FaultMuxRegs.DPWM2FLTABDET.bit.ACOMP_E_EN = 1;
                                         //  FaultMuxRegs.DPWM3FLTABDET.bit.ACOMP_E_EN = 1;    

     //Dpwm0Regs.DPWMFLTCTRL.bit.ALL_FAULT_EN = 1;
    //Dpwm0Regs.DPWMFLTCTRL.bit.AB_MAX_COUNT = 0; 
    //Dpwm0Regs.DPWMFLTCTRL.bit.A_MAX_COUNT = 0;
    //Dpwm0Regs.DPWMFLTCTRL.bit.B_MAX_COUNT = 0; 
    //Dpwm1Regs.DPWMFLTCTRL.bit.ALL_FAULT_EN = 1;
    //Dpwm1Regs.DPWMFLTCTRL.bit.AB_MAX_COUNT = 0;
    //Dpwm1Regs.DPWMFLTCTRL.bit.A_MAX_COUNT = 0;
    //Dpwm1Regs.DPWMFLTCTRL.bit.B_MAX_COUNT = 0;
    //Dpwm2Regs.DPWMFLTCTRL.bit.ALL_FAULT_EN = 1;
    //Dpwm2Regs.DPWMFLTCTRL.bit.AB_MAX_COUNT = 0;
    //Dpwm2Regs.DPWMFLTCTRL.bit.A_MAX_COUNT = 0;
    //Dpwm2Regs.DPWMFLTCTRL.bit.B_MAX_COUNT = 0;
    //Dpwm3Regs.DPWMFLTCTRL.bit.ALL_FAULT_EN = 1;
    //Dpwm3Regs.DPWMFLTCTRL.bit.AB_MAX_COUNT = 0;
    //Dpwm3Regs.DPWMFLTCTRL.bit.A_MAX_COUNT = 0;
    //Dpwm3Regs.DPWMFLTCTRL.bit.B_MAX_COUNT = 0; 

void init_cbc(void)中的：

                          //FaultMuxRegs.DPWM0CLIM.bit.ACOMP_F_EN = 1;
                         // FaultMuxRegs.DPWM1CLIM.bit.ACOMP_F_EN = 1;
                         // FaultMuxRegs.DPWM2CLIM.bit.ACOMP_F_EN = 1;
                         // FaultMuxRegs.DPWM3CLIM.bit.ACOMP_F_EN = 1;

                      //Dpwm0Regs.DPWMCTRL0.bit.CBC_PWM_AB_EN = 1;

                     //Dpwm1Regs.DPWMCTRL0.bit.CBC_PWM_AB_EN = 1;

                      //Dpwm2Regs.DPWMCTRL0.bit.CBC_PWM_AB_EN = 1;

                      //Dpwm3Regs.DPWMCTRL0.bit.CBC_PWM_AB_EN = 1;

void init_ovp(void)中的：

//FaultMuxRegs.DPWM0FLTABDET.bit.ACOMP_B_EN = 1;
//FaultMuxRegs.DPWM1FLTABDET.bit.ACOMP_B_EN = 1;
//FaultMuxRegs.DPWM2FLTABDET.bit.ACOMP_B_EN = 1;
//FaultMuxRegs.DPWM3FLTABDET.bit.ACOMP_B_EN = 1;
//Dpwm0Regs.DPWMFLTCTRL.bit.ALL_FAULT_EN = 1;
//Dpwm1Regs.DPWMFLTCTRL.bit.ALL_FAULT_EN = 1;
//Dpwm2Regs.DPWMFLTCTRL.bit.ALL_FAULT_EN = 1;
//Dpwm3Regs.DPWMFLTCTRL.bit.ALL_FAULT_EN = 1;

void  init_dpwm(void)中的：

//FaultMuxRegs.DPWM0CLIM.bit.ANALOG_PCM_EN   = 1; 
//FaultMuxRegs.DPWM1CLIM.bit.ANALOG_PCM_EN   = 1; 
//FaultMuxRegs.DPWM2CLIM.bit.ANALOG_PCM_EN   = 1; 
//FaultMuxRegs.DPWM3CLIM.bit.ANALOG_PCM_EN   = 1; 

inline void idle_state_handler(void)中的：

//FaultMuxRegs.ACOMPCTRL0.bit.ACOMP_B_INT_EN = 1;
//FaultMuxRegs.ACOMPCTRL2.bit.ACOMP_E_INT_EN = 1;