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28034移植到280025，重新配置CBC功能寄存器，测试时CBC没有工作，想请教一下，280025，CBC寄存器如何配置？
谢谢！
首先推荐一个文档，F28035向F280025迁移的文档，虽然跟CBC本身没什么关系，但可能跟你的程序运行会有关系：https://www.ti.com.cn/cn/lit/an/zhca980/zhca980.pdf?ts=1657515641926&ref_url=https%253A%252F%252Fwww.ti.com.cn%252Fproduct%252Fcn%252FTMS320F28035
然后，可以参考1：F280025的技术手册：https://www.ti.com.cn/cn/lit/ug/spruin7a/spruin7a.pdf?ts=1657515971325&ref_url=https%253A%252F%252Fwww.ti.com.cn%252Fproduct%252Fcn%252FTMS320F280025%253F_ticdt%253DMTY1NzUxNTU0OHwwMTgxNWJlNmRhZDQwMDFjNjMxMjcxNzhiYTE1MDUwNzIwMDFiMDZhMDA4NmV8R0ExLjIuNDMyNzY0MDUyLjE2NTUxMDUzNjA
参考2：芯片的例程：C:\ti\c2000\C2000Ware_4_01_00_00\driverlib\f28002x\examples\epwm\epwm_ex1_trip_zone.c
您好，非常感谢，您能帮忙看一下寄存器配置有没有问题吗？想先排除这方面的原因。代码如下：
EALLOW; AnalogSubsysRegs.CMPHPMXSEL.bit.CMP1HPMXSEL = 4;//A1:HighPositive_CMP1 (HPMXSEL=4) AnalogSubsysRegs.CMPLPMXSEL.bit.CMP1LPMXSEL = 1;//A11:LowPositive_CMP1 (LPMXSEL=1) AnalogSubsysRegs.CMPHPMXSEL.bit.CMP3HPMXSEL = 4;//A14:HighPositive_CMP3 (HPMXSEL=4)
//使用比较器1的高比较器 Cmpss1Regs.COMPCTL.bit.COMPDACE = 1;//使能比较器 Cmpss1Regs.COMPCTL.bit.COMPHSOURCE = 0;//CMP1H的负端使用内部DAC Cmpss1Regs.COMPCTL.bit.CTRIPHSEL = 0;//比较器异步输出到ePWM_XBAR Cmpss1Regs.COMPCTL.bit.COMPHINV = 1;//输出反向,大于DACVAL发送1;小于DACVAL发送0 Cmpss1Regs.DACHVALS.bit.DACVAL = 512;//CBC_VOL_COMP;//512
//使用比较器1的低比较器 Cmpss1Regs.COMPCTL.bit.COMPLSOURCE = 0;//CMP1L的负端使用内部DAC Cmpss1Regs.COMPCTL.bit.CTRIPLSEL = 0;//比较器异步输出到ePWM_XBAR Cmpss1Regs.COMPCTL.bit.COMPLINV = 1;//输出反向,大于DACVAL发送1;小于DACVAL发送0 Cmpss1Regs.DACLVALS.bit.DACVAL = 512;//CBC_VOL_COMP;//512
//使用比较器3的高比较器 Cmpss3Regs.COMPCTL.bit.COMPDACE = 1;//使能比较器 Cmpss3Regs.COMPCTL.bit.COMPHSOURCE = 0;//CMP1H的负端使用内部DAC Cmpss3Regs.COMPCTL.bit.CTRIPHSEL = 0;//比较器异步输出到ePWM_XBAR Cmpss3Regs.COMPCTL.bit.COMPHINV = 1;//输出反向,大于DACVAL发送1;小于DACVAL发送0 Cmpss3Regs.DACHVALS.bit.DACVAL = 512;//CBC_VOL_COMP;//512
//配置ePWM_XBAR EPwmXbarRegs.TRIP4MUX0TO15CFG.bit.MUX0 = 0; EPwmXbarRegs.TRIP4MUX0TO15CFG.bit.MUX4 = 0; EPwmXbarRegs.TRIP4MUXENABLE.bit.MUX0 = 1; EPwmXbarRegs.TRIP4MUXENABLE.bit.MUX4 = 1;
//配置DAC //U相CBC设置 //上桥 EPwm1Regs.DCTRIPSEL.bit.DCAHCOMPSEL = 3;//DCA's input select the ePWM_xbar_Trip4 EPwm1Regs.TZDCSEL.bit.DCAEVT2 = 1;//Low Active //下桥 EPwm1Regs.DCTRIPSEL.bit.DCBHCOMPSEL = 3;//DCA's input select the ePWM_xbar_Trip4 EPwm1Regs.TZDCSEL.bit.DCBEVT2 = 1;//Low Active //将比较器输出作为CBC的触发源 EPwm1Regs.TZSEL.bit.DCAEVT2 = 1; EPwm1Regs.TZSEL.bit.DCBEVT2 = 1; //CBC最终输出动作 EPwm1Regs.TZCTL.bit.DCAEVT2 = 1;//强制epwm1为高 EPwm1Regs.TZCTL.bit.DCBEVT2 = 1;//强制epwm1为高
//V相CBC设置 //上桥 EPwm2Regs.DCTRIPSEL.bit.DCAHCOMPSEL = 3;//DCA's input select the ePWM_xbar_Trip4 EPwm2Regs.TZDCSEL.bit.DCAEVT2 = 1;//Low Active //下桥 EPwm2Regs.DCTRIPSEL.bit.DCBHCOMPSEL = 3;//DCA's input select the ePWM_xbar_Trip4 EPwm2Regs.TZDCSEL.bit.DCBEVT2 = 1;//Low Active //将比较器输出作为CBC的触发源 EPwm2Regs.TZSEL.bit.DCAEVT2 = 1; EPwm2Regs.TZSEL.bit.DCBEVT2 = 1; //CBC最终输出动作 EPwm2Regs.TZCTL.bit.DCAEVT2 = 1;//强制epwm1为高 EPwm2Regs.TZCTL.bit.DCBEVT2 = 1;//强制epwmB为高
//W相CBC设置 //上桥 EPwm3Regs.DCTRIPSEL.bit.DCAHCOMPSEL = 3;//DCA's input select the ePWM_xbar_Trip4 EPwm3Regs.TZDCSEL.bit.DCAEVT2 = 1;//Low Active //下桥 EPwm3Regs.DCTRIPSEL.bit.DCBHCOMPSEL = 3;//DCA's input select the ePWM_xbar_Trip4 EPwm3Regs.TZDCSEL.bit.DCBEVT2 = 1;//Low Active //将比较器输出作为CBC的触发源 EPwm3Regs.TZSEL.bit.DCAEVT2 = 1; EPwm3Regs.TZSEL.bit.DCBEVT2 = 1; //CBC最终输出动作 EPwm3Regs.TZCTL.bit.DCAEVT2 = 1;//强制epwmA为高 EPwm3Regs.TZCTL.bit.DCBEVT2 = 1;//强制epwmB为高 EDIS;
额，现在最新的几款芯片软件都是用库的形式编写的，看寄存器对照起来有点累啊。
我建议你对照例程看一下自己的寄存器是否设置正确，自己编写的代码比较熟悉。
