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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,补焊,问题解决。