TI中文支持网Other Parts Discussed in Thread:TMS320F280049C如题，请求实现28035高精度移相例程或者配置，谢谢
Susan Yang：
抱歉，我们没有高精度移相的例程。在用户指南3.3.7 Practical Applications Using Phase Control Between PWM Modules中提到相关内容，您可以看一下
www.ti.com/…/sprui10.pdf
另外在该帖中有提到：
当将HRPWM与变频驱动器一起使用时，每次调整频率时都需要提供一个同步信号。不幸的是，这将在同步脉冲发生时引入抖动。F2803x设备上无法解决此问题。
在诸如TMS320F280049C这样的较新设备上，我们实现了新功能，可以使此操作不会发生抖动。
e2e.ti.com/…/ccs-tms320f28035-how-to-set-up-hrpwm-for-high-resolution-period-control-in-phase-shifted-system-jitter-issues
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user6532300：
谢谢您的回复，我们可以定频运行，想1A和2A实现高精度移相，但是现在操作不了，我能吧我的程序发给您，帮忙看一下哪里有问题吗
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Susan Yang：
user6532300 说：想1A和2A实现高精度移相，但是现在操作不了
能具体描述一下吗？
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user6532300：
麻烦您帮忙看一下：我1A和2A的频率都是110k，0-180的移相范围就是0-236，这个调节对控制来说太粗了，想用高精度细分移相调节，
比如我算出来移相角是90.5，如果不用高精度，就只能移相90，另外的0.5就会被忽略导致控制精度丢失，为了这0.5能调节，我是这样配置的高精度移相：
PWM初始化部分：
void InitEPwm2Example()//滞后臂
{//// Setup TBCLK//EALLOW;EPwm2Regs.TBCTL.bit.PRDLD = TB_SHADOW;EPwm2Regs.TBPRD = period1;// Set timer period
//EPwm2Regs.TBPHS.all = 0;EPwm2Regs.TBPHS.half.TBPHS = PHS;// Phase is 0EPwm2Regs.TBPHS.half.TBPHSHR =0;// Phase is 0EPwm2Regs.CMPA.half.CMPA=272;
//EPwm2Regs.CMPB = 100;EPwm2Regs.TBCTL.bit.CTRMODE = TB_COUNT_UP; // Count upEPwm2Regs.TBCTL.bit.PHSEN = TB_ENABLE;
EPwm2Regs.TBCTL.bit.SYNCOSEL = TB_SYNC_IN;
EPwm2Regs.TBCTR = 0x0000;// Clear counterEPwm2Regs.TBCTL.bit.HSPCLKDIV = TB_DIV1;// Clock ratio to SYSCLKOUTEPwm2Regs.TBCTL.bit.CLKDIV = TB_DIV1;
EPwm2Regs.CMPCTL.bit.SHDWAMODE = CC_SHADOW;EPwm2Regs.CMPCTL.bit.SHDWBMODE = CC_SHADOW;EPwm2Regs.CMPCTL.bit.LOADAMODE = CC_CTR_ZERO;EPwm2Regs.CMPCTL.bit.LOADBMODE = CC_CTR_ZERO;//EPwm2Regs.AQCTLB.bit.CAU = AQ_CLEAR;
//EPwm2Regs.AQCTLB.bit.PRD = AQ_SET;EPwm2Regs.AQCTLB.bit.CAU = AQ_NO_ACTION;EPwm2Regs.AQCTLB.bit.PRD = AQ_NO_ACTION;
EPwm2Regs.DBCTL.bit.IN_MODE = 3;EPwm2Regs.DBCTL.bit.OUT_MODE = DB_FULL_ENABLE;
//EPwm2Regs.DBCTL.bit.POLSEL = DB_ACTV_HIC;EPwm2Regs.DBFED = db;//死区300nsEPwm2Regs.DBRED = db;EDIS;EALLOW;EPwm2Regs.HRCNFG.all = 0x0;EPwm2Regs.HRCNFG.bit.EDGMODE = HR_BEP;// MEP control on falling edgeEPwm2Regs.HRCNFG.bit.CTLMODE = HR_PHS;EPwm2Regs.HRCNFG.bit.HRLOAD= HR_CTR_ZERO;
EPwm2Regs.HRCNFG.bit.SWAPAB=0;EPwm2Regs.HRCNFG.bit.SELOUTB=0;EPwm2Regs.HRCNFG.bit.AUTOCONV = 0;EPwm2Regs.HRPCTL.bit.HRPE = 1;EPwm2Regs.HRPCTL.bit.TBPHSHRLOADE = 1;EDIS;
EALLOW;EPwm2Regs.TZCTL.bit.TZA = 2;EPwm2Regs.TZCTL.bit.TZB = 2;EDIS;
}应用部分：PID_Value.pidvalue = 100.5;EPwm2Regs.TBPHS.half.TBPHS =(Uint16) PID_Value.pidvalue;EPwm2Regs.TBPHS.half.TBPHSHR =( (Uint16) (( (PID_Value.pidvalue – EPwm2Regs.TBPHS.half.TBPHS)*93+0.5))) <<8;
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Susan Yang：
已经回复您的私信，请看一下
