最近碰到又一怪问题,问题描述如下:
一最近碰到又一怪问题,问题描述如下:
一个80c51和x86用三根线连接:SCL,SDA and BUSY/INTE.
8051 可作为Master/Slave Transmission and receivsion. 8051 slave address 0x66,In 8051 there is a data register to save the date for Transmission and recerivison.
I only know I read the data from the data register in 80c51 when x86 send data.but i don't know how 8051 send the data to x86.Do I need write the data that i will send to x86 into the data register of the 80c51 when i send x86 a data from 80c51?