Supercharge Your Innovation With Domain-Expert AI Agents!

switching circuit

A switching circuit, switching circuit technology, applied in the direction of electrical digital data processing, detecting faulty computer hardware, instruments, etc.

Inactive Publication Date: 2016-06-29
STATE GRID SHANDONG ELECTRIC POWER CO SHANXIAN POWER SUPPLY CO
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the motherboard is debugged and the BIOS chip supporting the SPI interface is set on the motherboard, the resistance values ​​of the resistors R1-R4 need to be replaced (for example, the resistance value of the resistor R2 is set to be extremely small relative to the resistance value of the resistor R1 1. Set the resistance value of resistor R4 to be extremely small relative to the resistance value of resistor R3), so that the two trigger pins of PCH chip 10 receive a low level, and then select a BIOS chip that supports the SPI interface to start the mainboard, so that Great inconvenience to developers

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • switching circuit
  • switching circuit
  • switching circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Please refer to Figure 2 to Figure 4 A preferred embodiment of the switching circuit of the present invention includes a diagnostic card 20 , a first connector 300 , a PCH chip 301 , a first BIOS chip 302 and a switch circuit 303 . The first connector 300 , the PCH chip 301 , the first BIOS chip 302 and the switch circuit 303 are all disposed on a motherboard 30 .

[0024] The diagnostic card 20 includes a second connector 200 , a second BIOS chip 202 and a resistor R5 . When debugging the motherboard 30 , the second BIOS chip 202 is used to start the motherboard 30 . The second connector 200 is connected to the second BIOS chip 202 through the LPC bus. The pin IO1 of the second BIOS chip 202 is used to transmit the clock signal to the pin L1 of the second connector 200, the pin IO2 is used to transmit the reset signal to the pin L2 of the second connector 200, and the pin IO3 - IO6 is used to transmit address signals to pins L3 - L6 of the second connector 200 , an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A switch apparatus which can switch between two different booting chips includes a first connector, a platform controller hub (PCH) chip, a first basic input output system (BIOS) chip, a switch circuit, and a diagnostic card. The diagnostic card includes a second connector operable to be plugged into the first connector, and a second BIOS chip. When the switch circuit receives a high level control signal from the second BIOS chip, the switch circuit outputs a high level switch signal to first and second trapping pins of the PCH chip, to select the second BIOS chip to bootstrap the motherboard. When the switch circuit does not receive a high level control signal, the switch circuit outputs a low level signal to the first and second trapping pins of the PCH chip, to select the first BIOS chip to bootstrap the motherboard.

Description

technical field [0001] The invention relates to a switching circuit, in particular to a switching circuit for simulating a motherboard BIOS chip through a diagnosis card. Background technique [0002] The BIOS (BasicInputOutputSystem, basic input output system) chip set on the existing motherboard all exchanges data with the PCH (PlatformControllerHub, platform control center) chip through the SPI (SerialPeripheralInterface, serial peripheral interface) bus. In the motherboard design and development stage, a diagnostic card (DebugCard) is usually used to simulate the BIOS chip on the motherboard. This diagnostic card exchanges data with the PCH chip through the LPC (LowPinCount, low pin count) bus. This kind of diagnostic card can display the state information of each hardware of the motherboard when it is turned on, so the research and development personnel can judge the working state of each hardware according to the displayed information. [0003] Please refer to figur...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/22
CPCG06F13/4022
Inventor 周飞郑德民张立臣孙勇韦刚
Owner STATE GRID SHANDONG ELECTRIC POWER CO SHANXIAN POWER SUPPLY CO
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com