• What is the purpose of the startup code?

The startup code is mostly composed of assembly instructions, which can implement vector table definition, stack initialization, system variable initialization, interrupt system initialization, I/o initialization, peripheral initialization, address remapping, and so on.

• What are the detection methods for the Santana 2000G “car manifold pressure sensor?

(1) Fault diagnosis

(2) Resistance detection

(3) Voltage detection

• The circular inductive synchronizer is also called the rotary inductive synchronizer. What constitutes it?

The circular inductive synchronizer, also known as a rotary inductive synchronizer, consists of a rotor and a stator.

• What are the two major categories of encoders?

The encoder can be divided into two categories: incremental encoder and absolute code encoder.

• What are the main technical features of the MAX7306/7307?

1 oscillator input and output can cascade multiple devices; 20.75

• What are the core technologies for MSTP to carry Ethernet services?

Encapsulation protocol-general framing protocol; mapping processing-virtual concatenation technology; link bandwidth dynamic adjustment technology

• What is a software interruption?

A software interrupt is generated by executing an instruction, which is a non-maskable interrupt.

(1) The instruction interrupt is not defined.If the UND instruction is executed, an undefined instruction interrupt is generated.

(2) Overflow interrupt.If the BRK instruction is executed, a BRK interrupt is generated.

(3) The INT instruction is interrupted.If the INT instruction is executed, an INT instruction interrupt is generated.

For interrupts with software interrupt numbers 0 to 31, the u flag is pushed onto the stack when the instruction is executed, and then the interrupt response sequence is executed after the u flag is cleared to “0” (ISP is selected).The u flag of the pushed stack is restored when returning from the interrupt routine.

• What is the way to improve the efficiency of a switching step-down DC/DC converter?

The method for improving the efficiency of the switching step-down DC/DC converter is to minimize the conduction loss generated by the switching step-down DC/DC converter under the condition of small load current condition F, and to minimize the switching loss.

• What are the main components of the PLC basic unit?

The PLC basic unit is mainly composed of a central processing unit (CPU), a memory, an input unit, an output unit, a power supply unit, an expansion interface, a memory interface, a programmer interface, and a programmer.

• According to readable and writability, what can be classified into electronic tags?

1.Read-only electronic label

2.Write Once Read Only (electronic only)

3.Read and write electronic tags

4.Read/write electronic tag with on-chip sensor

5.Read/write electronic tag with transceiver