An application cannot bypass the OS and access hardware resources directly. It is commonly said that applications run in user mode.
应用程序已经不可能绕过现代的操作系统直接访问硬件，一种更普遍的说法就是应用程序以用户态(user mode)运行。
To enhance the stability of the system, design a lot of decoupling and bypass capacitors in hardware circuit. And the JTAG debug interface is designed for convenient debugging.
在硬件电路设计中，大量采用了性能较好的去耦和旁路电容来加强系统的稳定性，并为了调试方便设计了JTAG接口。
To enhance the stability of the system, design a lot of decoupling and bypass capacitors in hardware circuit. And the JTAG debug interface is designed for convenient debugging.
在硬件电路设计中，大量采用了性能较好的去耦和旁路电容来加强系统的稳定性，并为了调试方便设计了JTAG接口。
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