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使用HVD3082 时, 发现某些批次在115200bps下,使用如上相同的电路的2台对接进行生产测试时, 测试失败。考虑连接线原小于1米, 测试时去掉了中间330欧匹配电阻,测试发现A/B线的波形和输入波形不一致, 解析发现数据失败。
请帮忙确认一下,是否哪里参数有问题