遇到的问题,通过I2C总线读.写(read.write)fs8816加密芯片,报错如下: read str failed,error= Input/output error! write str failed,error= Input/output error! read str failed,error= Device or resource busy! write str failed,error= Device or resource busy! 原因是fs8816芯片管脚虚焊. 解决办法…