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TMS320F280025中有High Resolution Period功能,请教一下,HR周期功能是每个周期都增加TBPRDHR[15:8]个延时单元时间不?
我运行了hrpwm_ex3_prd_updown_sfo例程,当将HRPWM_setTimeBasePeriod(ePWM[i], compCount);修改为HRPWM_setTimeBasePeriod(ePWM[1], 0x0920)时(将TBPRDHR设置为0x2000),通过示波器看到的波形并不是每个周期时间增加0x20*140ps;
能否准确回复我的疑问?
TMS320F280025中有High Resolution Period功能,请教一下,HR周期功能是每个周期都增加TBPRDHR[15:8]个延时单元时间不?
是的;
我运行了hrpwm_ex3_prd_updown_sfo例程,当将HRPWM_setTimeBasePeriod(ePWM[i], compCount);修改为HRPWM_setTimeBasePeriod(ePWM[1], 0x0920)时(将TBPRDHR设置为0x2000),通过示波器看到的波形并不是每个周期时间增加0x20*140ps;
你使用的SDK是什么版本的?目前的版本支持在syscfg中配置HRPWM,请在syscfg中配置。
并且micro step的典型值是150ps。