How to do the hardware How to design the hardware

Hardware development is to do the hardware development of electronic products.

Hardware development is generally divided into schematic design, circuit diagram design, PCB board design, test board production, functional rental field test, stability test, single-chip microcomputer design, small batch production, formal market or formal use and other steps.

It is also necessary to clarify the overall hardware requirements, such as CPU processing capacity, storage capacity and speed, IO port allocation, interface requirements, level requirements, special circuit requirements, etc. Carry out detailed hardware design, including drawing hardware schematics, board functional block diagrams and coding, and complete the development of bill of materials, production documents, and material application.

The overall process of hardware development

1. According to the demand analysis, formulate the overall hardware plan, seek key devices and their technical data, technical approaches, and technical support, and fully consider the technical possibilities, reliability and cost control, and put forward clear requirements for the development and debugging tools, and ask for samples for key devices.

2. After receiving the PCB board and materials, arrange to weld 2 to 4 veneer boards, debug the veneer board, debug the functions in the principle design, modify the schematic diagram and record it if necessary.

3. Joint debugging of software and hardware systems, the general single board requires the cooperation of hardware personnel and single board software personnel, and after the debugging of the single board, there are some adjustments in the principle and PCB wiring, and the board needs to be invested for the second time.

4. During internal acceptance and pilot test, track the problems of the production line, actively assist the production line to solve various problems, improve the excellent rate, and pave the way for mass production.

The above content refers to: Encyclopedia - Hardware Development.

Hardware Engineer Position Requires Familiarity with Liangyan Computer Market**; Develop a computer assembly plan; Be able to purchase and assemble the hardware equipment required, and be able to reasonably configure and install computers and peripherals; installation and configuration of computer software systems; maintenance of hardware and peripherals; Clearly describe the occurrence of computer hardware and software failures Large systems can also be designed to be divided into zero modules. At the beginning of the design, it is necessary to find out the technical indicators of each IO (voltage and current range, speed, etc.), and then select the appropriate IO and master control device after the silver is ready. Larger systems may have more than one head, and many ios can do some of the work intelligently.

For example, socks and UART for serial ports, the master controller does not have to keep staring at the serial line, and every time a data transmission or a piece is completed, UART will make an interrupt request, and so on.

As for anti-interference, anti-temperature drift and time drift, etc., it is necessary to consider the device selection and circuit composition. As I said, hardware engineers are under tremendous pressure to not make mistakes compared to software, but the FPGAs that are both hardware and software have made it much easier for hardware designers, and their logic allows for changes within a certain range.