开发环境是Silab，里面有两个代码，实现的功能是两单片机C8051F040的CAN通信，发送程度先将浮点数3.14159和长整型数1234567L转换成MSGNUMD号消息数据。发送给接收端。接收端将接收到的数据重新转换成浮点数和长整型数。-Development environment is Silab, it there are two codes, to achieve the function of two of the CAN microcontroller C8051F040 communications, send a first floating-point number 3.14159 and the degree of long-integer conversion MSGNUMD No. 1234567L message data. Sent to the receiver. The receiving end will receive the data back into floating point and long integers.