TMS320F28374S: 如何配置INPUT XBAR至EPWM XBAR 至TRIP4触发TZ中断？

liusuhefeng feng

Part Number: TMS320F28374S

如标题：我想使用外部GPIO信号输入引入至EPWM XBAR 至TRIP4触发TZ(TRIP4)中断，以实现中断触发以及PWM的关断，TZ为one shot 模式，请问是否有相关配置可以参考？

InputXbarRegs.INPUT4SELECT = 80;

EPwm7Regs.TZSEL.bit.DCAEVT1 = 1;
EPwm7Regs.TZEINT.bit.DCAEVT1 = 1;

EPwm8Regs.TZSEL.bit.DCAEVT1 = 1;

EPwmXbarRegs.TRIP4MUX0TO15CFG.bit.MUX5 = 1;
EPwmXbarRegs.TRIP4MUXENABLE.bit.MUX5 = 1;
EPwmXbarRegs.TRIPOUTINV.bit.TRIP4 = 0;

EPwm7Regs.DCBHTRIPSEL.bit.TRIPINPUT4 = 1;
EPwm7Regs.DCTRIPSEL.bit.DCBHCOMPSEL = DC_TRIPIN4;

EPwm7Regs.TZDCSEL.bit.DCAEVT1 = TZ_DCAH_LOW;

以上，期待回复，谢谢。

1 年多前

0 liusuhefeng feng 1 年多前

Prodigy 30 points

InputXbarRegs.INPUT4SELECT = 80;

EPwm7Regs.TZEINT.bit.DCAEVT1 = 1;
EPwm7Regs.TZSEL.bit.DCAEVT1 = 1;
EPwm8Regs.TZSEL.bit.DCAEVT1 = 1;

EPwmXbarRegs.TRIP4MUX0TO15CFG.bit.MUX7 = 1; // INPUTXBAR4 作为 MUX7 的输入
EPwmXbarRegs.TRIP4MUXENABLE.bit.MUX7 = 1; // enable the mux7
EPwmXbarRegs.TRIPOUTINV.bit.TRIP4 = 0; // 1-输出高电平;0-输出低电平

// EPWM DC modular

EPwm7Regs.DCAHTRIPSEL.bit.TRIPINPUT4 = 1;
EPwm7Regs.DCTRIPSEL.bit.DCAHCOMPSEL = DC_TRIPIN4;
// EPWM TZ modular

EPwm7Regs.TZDCSEL.bit.DCAEVT1 = TZ_DCAH_LOW;
EPwm7Regs.TZSEL.bit.DCAEVT1 = 1;

EPwm8Regs.DCAHTRIPSEL.bit.TRIPINPUT4 = 1;
EPwm8Regs.DCTRIPSEL.bit.DCAHCOMPSEL = DC_TRIPIN4;
// EPWM TZ modular

EPwm8Regs.TZDCSEL.bit.DCAEVT1 = TZ_DCAH_LOW;
EPwm8Regs.TZSEL.bit.DCAEVT1 = 1;

我更正了部分寄存器配置，并且调试可以实现外部信号关断两路PWM输出，请问与我的意图相比，如上配置是否存在什么其他隐藏问题？谢谢！