You can switch back and forth between data and code sections, but when the program is assembled it will bring all of each section together into one unit.

您可以在数据部分和代码部分之间自由切换，但当程序被汇编时，会将所有部分汇编到一起，组成一个单元。

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Electronic control unit ECU used AT89C51 microcontroller as a microprocessor, including data acquisition module, switch input module and CAN communication module.

电子控制单元ecu采用AT 89 C 51单片机作为微处理器，设计了数据采集模块、开关量输入模块以及CAN通信模块。

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