Sl811与微控制器PIC之间的交互

我打算通过SL811通过我的微控制器PIC18F45 50从操纵杆接收数据，以便在它们之间进行连接。
我在创建程序时遇到问题。它说所有变量都没有足够的RAM。
EnyOne有任何提示或程序已经工作了吗？
干杯！



     以下为原文
    I am intending to receive data from a joystick through my microcontroller PIC18f4550  using the sl811 to make the connection between them.
    I am having problems creating my program. It says that there is no enough RAM for all variables.
    Does enyone have any tips or a program already working?
    Cheers!