Method for achieving different light-emitting diode (LED) flickering modes according to different power states
A state and AC power supply technology, which is applied in the field of realizing different LED flashing modes according to different power states, can solve problems such as inability to effectively distinguish different states of power, failure to ensure that the machine can be monitored by the service personnel in the computer room, and no abnormality in the machine can not be guaranteed. To achieve the effect of easy distinction and positioning
Inactive Publication Date: 2014-01-01
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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Problems solved by technology
[0003] In the traditional server front control panel design, the Power LED light only indicates whether the system Power can be powered on, and cannot effectively distinguish the different states of the Power, let alone give customers an intuitive feeling
[0004] With the continuous expansion of the customer base of the product, most customers need to be able to distinguish different states during the bo
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[0016] Referring to the accompanying drawings, the present invention will be described in detail in conjunction with the embodiments.
[0017] A method to realize different LED flashing modes according to different power states. The power state before power-on: After the maintenance personnel insert the AC power module of the product, before pressing the Power button, there is only Standby power. At this time, the machine is indicated to the customer. The power supply does not have core power, so in this state, the GPIO is controlled by the BMC to periodically become high or low at a fixed frequency to control the LED light to blink.
[0018] After the system is turned on by pressing the Power button, but before the official Boot is completed, although all power states have been started at this time, the system has not yet completed the boot process. At this time, the BMC controls the GPIO to change periodically at another frequency. High or low, the control LED flashes to ind...
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The invention discloses a method for achieving different light-emitting diode (LED) flickering modes according to different power states. After an alternating current (AC) power module is inserted into a product and before a power button is pressed, a BMC is utilized to control general purpose input output (GPIO) to be increased or decreased periodically with a fixed frequency to control an LED lamp to flicker. When the power button of a system is pressed and startup is conducted, the BMC is utilized to control the GPIO to be increased or decreased periodically with another frequency to control the LED lamp to flicker to indicate the current state before formal Boot is finished. After the Boot process of the system is finished, the BMC receives information transmitted by a basic input output system (BIOS) and releases frequency control on the GPIO to enable the GPIO to be in the constant-high state, and the LED lamp of the system power lights constantly. After the design scheme is introduced, displaying of various LEDs can be supported, and distinguishing and location of product operation states in a large computer room can be facilitated. Meanwhile, the method provides design features for products and provides powerful support for product market competition.
Description
technical field [0001] The invention relates to the field of computer server system design, in particular to a method for realizing different LED flashing modes according to different states of Power. technical background [0002] At present, the server basically follows the design idea of the previous OEM mode, and the LED indicating the power status of the system has two blinking modes: always on or always off. After the South Bridge BIOS completes the Post, it informs the system that the Power has been completed. At this time, the system will turn on the Power LED. Before that, the Power LED has been off. [0003] In the traditional server front control panel design, the Power LED light only indicates whether the system Power can be powered on, and cannot effectively distinguish the different states of the Power, let alone give customers an intuitive feeling. [0004] With the continuous expansion of the customer base of the product, most customers need to be able to ...
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Inventor 张锋
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD