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AWR2243: AWR2243级联DIG_SYNC长度失配问题

Part Number: AWR2243

我在文章https://e2e.ti.com/support/sensors-group/sensors/f/sensors-forum/1327793/awr2243-frame-trigger-delay-effect-in-cascaded-system中看见DIG_SYNC信号延时限制需要达到约5ns左右,换算成信号线长度是否是1.5m?如果不是,最大DIG_SYNC不等长差值应该是多少?

目前本人的设计中,该信号线一定无法等长,是否有类似于AWR_FRAME_CONF_SET_SB中FRAME_TRIGGER_DELAY类似的API提供软件上的时延?我注意到该API只能提供单芯片模式下的帧时延,在级联模式下能否实现?