huohua
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用i2cdetect -y 3命令扫描dv300的板子，但引脚电平无变化
不管我怎么扫描结果都是这样的，i2c上面接了0x45的从机但未识别到，从机模块测试过是没有问题的，我测试i2c波形没有波形输出，请问是什么原因
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通过pinout表先复用一下管脚，复用为i2c相关的管脚
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请问怎么查看呢
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感谢大佬的回复，我的SDK里面怎么没有呢，我使用的SDK Hi3516DV300 是在原厂 Hi3516CV500SDK 基础上修改的
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04.开发板SDK包/原厂SDK/Hi3516DV500R001C02SPC020/ReleaseDoc/00.hardware/chip/Hi3516dv300/
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或将文件直接拖到这里
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![UncleRoderick](https://www.ebaina.com/blog/ask/{"id":200000033101,"nickname":"UncleRoderick","avatar":"https:\/\/ebaina.oss-cn-hangzhou.aliyuncs.com\/res\/images\/user\/avatar\/202305\/16\/Y1ZMw4aPkXUTEVDPeyqsdGptui2Gko62uuTkGqgy.jpg","vip":true,"vip_level":3,"vip_endtime":"2025-01-06 14:17:25","remain_download_count":20,"is_agent":0,"agent_id":null,"agent_valid_time":null,"is_supplier_member":false,"supplier_id":0,"car_count":0,"question_count":14,"approved_question_count":14,"reply_count":448,"approved_article_count":1,"approved_origin_article_count":1,"approved_resource_count":14,"base_reply_count":28,"users_certification_status":false,"users_resume_status":false,"growth_level_present":null,"status":false,"fans":32,"follow":0,"badge_ids":[22,22,22,3,3,3,3,3,6,7,17,17,6,22,28,28,28,15,18,18,32,14,3,14],"badge_level_ids":[132,133,134,14,15,16,17,18,36,45,112,113,37,135,151,152,153,97,119,120,157,87,19,88],"view_count":"1296","enterprise_certification_status":false}->id){kind=link}
![huohua](https://www.ebaina.com/blog/ask/{"id":200000114646,"nickname":"huohua","avatar":"https:\/\/ebaina.oss-cn-hangzhou.aliyuncs.com\/res\/avatar\/noavatar_middle.gif","vip":false,"vip_level":0,"vip_endtime":null,"remain_download_count":0,"is_agent":0,"agent_id":null,"agent_valid_time":null,"is_supplier_member":false,"supplier_id":0,"car_count":0,"question_count":13,"approved_question_count":12,"reply_count":18,"approved_article_count":0,"approved_origin_article_count":0,"approved_resource_count":0,"base_reply_count":0,"users_certification_status":false,"users_resume_status":false,"growth_level_present":null,"status":false,"fans":4,"follow":0,"badge_ids":[22,1,1],"badge_level_ids":[132,1,2],"view_count":0,"enterprise_certification_status":false}->id){kind=link}
![我不是菜鸡](https://www.ebaina.com/blog/ask/{"id":200000115570,"nickname":"\u6211\u4e0d\u662f\u83dc\u9e21","avatar":"https:\/\/ebaina.oss-cn-hangzhou.aliyuncs.com\/res\/avatar\/noavatar_middle.gif","vip":false,"vip_level":0,"vip_endtime":null,"remain_download_count":0,"is_agent":0,"agent_id":null,"agent_valid_time":null,"is_supplier_member":false,"supplier_id":0,"car_count":0,"question_count":0,"approved_question_count":0,"reply_count":1,"approved_article_count":0,"approved_origin_article_count":0,"approved_resource_count":0,"base_reply_count":0,"users_certification_status":false,"users_resume_status":false,"growth_level_present":null,"status":false,"fans":0,"follow":0,"badge_ids":[3,22,22,22],"badge_level_ids":[14,132,133,134],"view_count":0,"enterprise_certification_status":false}->id){kind=link}