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带死区和互补HRPWM应该跟SWAPAB位和SELOUTB位没有关系，这两者是用于交换HRPWM输出和选择输出口A/B的。
根据芯片技术手册1906页的NOTE中描述：
HRPWM capabilities on Deadband Rising Edge Delay and Falling Edge Delay is applicable
only during Dead Band half cycle clocking Operation. The number of MEP steps is half in
size [ bits 15:9 ]than duty and phase high resolution registers for the same reason
目前没有针对F280049带死区HRPWM输出的例程，不过你可以参考F28075的例程：
C:\ti\c2000\C2000Ware_2_00_00_03\device_support\f2807x\examples\cpu1\hrpwm_deadband_sfo_v8
