ST公司的24C02的确不一样,数据手册描述SCL引脚时,有这么一句话“In most applications, though, this method of synchronization is not employed, and so the pull-up resistor is not necessary, provided that the bus master has a push-pull (rather than open drain) output.”
因此SCL上拉电阻是没有必要的,总线主机具有一个推挽式输出(而不是开漏)。
楼主的问题解决了吗?我刚也遇到同样的问题,无解啊!!!!!!!
欢迎光临 OpenEdv-开源电子网 (http://47.111.11.73/) | Powered by Discuz! X3.4 |