* Question What is an RS-485 repeater? * Answer RS-485 repeaters are required in the following cases: more than 32 stations (including repeaters) are connected to the bus or exceed the maximum length ...
* Question What is the basic workflow of an RFID system? * Answer The reader sends a certain frequency of the radio frequency signal. When the device enters the working area of the transmitting antenn ...
* Question What are the security system components of the smart card? * Answer The security system conceptually includes three major parts: security status, security attributes, and security machanism ...
* Question Altera Cyclone FPGAs have the following performance characteristics? * Answer New programmable architecture for low cost design.Embedded memory resources support a variety of memory applica ...
* Question The main steps of program migration? * Answer 1 Completely compile the generated Boa file and download the /sbin of the development board through the serial port rz command.Create a directo ...
* Question What does the security environment include? * Answer (1) SE identifier (SEID byte) (2) Component (3) Certificate holder’s authentication (4) Access control (5) SE search ...
* Question How does the subroutine call/return instruction implement the call and return of the subroutine? * Answer The subroutine call instruction BSR is a relative addressing subroutine call instru ...
* Question What are the TV encoder related registers? * Answer 1. TV Controller control SFR set 2. Vertical back porch end point 3. Horizontal back porch end point 4. Horizontal booster offset registe ...
* Question If the ADC and DAC are enabled and powered up before the sample rate is changed, the sample rate value change will be valid, so how is the sample rate set? * Answer The sampling rate settin ...