想用这种方式来改变PWM的输出，有人用过不？

安_然

想用这种方式来改变PWM的输出，有人用过不？ [复制链接]

• Time-Base Period Shadow Mode:
The TBPRD shadow register is enabled when TBCTL[PRDLD] = 0. Reads from and writes to the
TBPRD memory address go to the shadow register. The shadow register contents are transferred to
the active register (TBPRD (Active) ← TBPRD (shadow)) when the time-base counter equals zero
(TBCTR = 0x0000). By default the TBPRD shadow register is enabled.

• Software Forced Synchronization Pulse:
Writing a 1 to the TBCTL[SWFSYNC] control bit invokes a software forced synchronization. This pulse
is ORed with the synchronization input signal, and therefore has the same effect as a pulse on
EPWMxSYNCI.

[ 本帖最后由 安_然 于 2012-1-9 15:01 编辑 ]

囧神

软件例程里面都有的

安_然