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	<title>外部触发 &#8211; 雨墨星辰</title>
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	<description>与你一同进步</description>
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		<title>工业相机设置 ROI 后外部触发慢一帧（N−1）：定位 RKISP 帧完成边界</title>
		<link>https://blog.ymxc152.top/2026/07/29/industrial-camera-external-trigger-n-minus-one-frame-rkisp/</link>
					<comments>https://blog.ymxc152.top/2026/07/29/industrial-camera-external-trigger-n-minus-one-frame-rkisp/#respond</comments>
		
		<dc:creator><![CDATA[ymxc]]></dc:creator>
		<pubDate>Wed, 29 Jul 2026 03:24:15 +0000</pubDate>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[DMA]]></category>
		<category><![CDATA[Fast Trigger]]></category>
		<category><![CDATA[GStreamer]]></category>
		<category><![CDATA[IMX296]]></category>
		<category><![CDATA[Linux驱动]]></category>
		<category><![CDATA[N-1帧]]></category>
		<category><![CDATA[RK3576]]></category>
		<category><![CDATA[RKCIF]]></category>
		<category><![CDATA[RKISP]]></category>
		<category><![CDATA[ROI]]></category>
		<category><![CDATA[V4L2]]></category>
		<category><![CDATA[XTRIG]]></category>
		<category><![CDATA[全局快门]]></category>
		<category><![CDATA[外部触发]]></category>
		<category><![CDATA[工业相机]]></category>
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					<description><![CDATA[IMX296 外部触发在无 ROI 时基本正常，但设置或清除 ROI、重建采集链路后，可能出现第 N 次触发拿到第 N−1 帧。本文复盘如何将问题定位到 RKISP 提交图像缓冲区的时机。]]></description>
		
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