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[参考译文] TMS320F28069:HRPWM 上的相移

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请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1081107/tms320f28069-phase-shift-on-hrpwm

部件号:TMS320F28069

尊敬的团队:

我的客户希望实施 HRPWM 相移控制,但他发现,在配置完成后,HRPWM 相移不会实施,如下所示。 配置错误在哪里?

PWM 初始化:

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 0
EPwm2Regs.TBPHS.half.TBPHSHR = 0; // Phase is 0
EPwm2Regs.CMPA.half.CMPA=272;
// EPwm2Regs.CMPB = 100;
EPwm2Regs.TBCTL.bit.CTRMODE = TB_COUNT_UPDOWN; 
EPwm2Regs.TBCTL.bit.PHSEN = TB_ENABLE;

EPwm2Regs.TBCTL.bit.SYNCOSEL = TB_SYNC_IN;

EPwm2Regs.TBCTR = 0x0000; // Clear counter
EPwm2Regs.TBCTL.bit.HSPCLKDIV = TB_DIV1; // Clock ratio to SYSCLKOUT
EPwm2Regs.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300ns
EPwm2Regs.DBRED = db;
EDIS;
EALLOW;
EPwm2Regs.HRCNFG.all = 0x0;
EPwm2Regs.HRCNFG.bit.EDGMODE = HR_BEP; 
EPwm2Regs.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;
}

相移:

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)*61+0.5))) <<8;

此致

  • 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

    您好,格林,

    [引用 userid="306637" url="~/support/icros/c2000-icroms-group/c2f/c2000-iclms -forume/1081107/tms320f28069-phase-shift-on-HRPWM"],但他发现在配置完成后未实施 HRPWM 相移。

    输出波形中是否出现应用的正常相位?  

    [引用 userid="306637" url="~/support/icros/c2000-icro-group/c2f/c2000-微控制器-forume/1081107/tms320f28069-phase-shift-On-HRPWM"]配置错误的位置是什么?

    我看到您启用了高分辨率期间,是应用于高分辨率相位,负载还是两者兼有?  

    此致,

    Marlyn

  • 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

    是的,他可以看到  输出波形中应用了正常相位。  

    该应用程序用于高分辨率阶段。

  • 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

    您好,格林,

    如果应用程序用于高分辨率阶段,则不应设置高分辨率期间启用(HRPE)位:EPwm2Regs.HRPCTL.bit.HRPE =0;

    此致,

    Marlyn