Method, device and system for implementing panel power up and down
A single-board and power-on technology, which is applied in electronic digital data processing, instruments, calculations, etc., can solve the problems that level signals are easily interfered by the outside world, system business is affected, and business slots are powered off. Possibility of power-on or power-off, improved reliability, effect of reduced impact
Inactive Publication Date: 2008-04-30
王献献
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Problems solved by technology
When the device that controls the BD_SEL# signal output on the main hot-swap controller (such as CPU, FPGA (i.e. Field Programmable Gate Array), etc.) is abnormal, it will cause the BD_SEL# signal that should be in the valid state to become invalid. (that is, output high level), so that the single boards in each business slot are powered off, which has a serious impact on the system business
In addition, the level signal is relatively easy to be interfered by the outside world, which makes it very likely to mistakenly trigger the power-on or power-off of the boards in each service slot
Method used
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[0034] The method for realizing reliable power-on and power-off of a single board proposed by the embodiment of the present invention controls power-on or power-off of a single board in each service slot through a pulse code output by a hot-swap controller.
[0035] On the premise of complying with the hot-swap specification of PICMG, the embodiments of the present invention still control the single boards in each service slot through the output of the BD_SEL# signal by the hot-swap controller. figure 2 It is a schematic diagram of an embodiment of the system for realizing power on and off of a single board according to the present invention. Such as figure 2 As shown, in this embodiment, a pulse generating circuit 102 is provided in the hot-swap controller 100 for generating a specific power-up or power-down enable pulse signal BD_SEL# and outputting it to each board 200 . The pulse generating circuit 102 can be realized by various existing methods. At the same time, a pu...
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The invention relates to a method, device and system for realizing power on and off of a single board. The method includes: outputting a power-on or power-off enabling pulse to a corresponding single board; when the enabling pulse received by the single board meets a preset power-on or power-off condition, performing power-on or power-off Electricity. The device includes: a pulse generating circuit, used to generate a power-on or power-off enable pulse; a pulse detection circuit, receiving and detecting the enable pulse generated by the pulse generating circuit, and when the enable pulse meets a predetermined Output a power-on or power-off signal to the board when the power-on or power-off condition is set. The invention controls the power-on or power-off of each service slot board through the specific pulse code output by the hot-swap controller, and is not affected by the abnormality of the hot-swap controller or external interference, and the reliability of power-on and power-off of each board is improved. greatly improved.
Description
technical field [0001] The present invention relates to a compact PCI (peripheral component interconnection) system, more specifically, to a method, device and system for realizing power on and off of a single board in a compact PCI system. Background technique [0002] The PCI Industrial Computer Manufacturers Group (PICMG for short), as one of the international standardization organizations, released the initial version of the CPCI (Compact PCI) specification on September 2, 1997, and then released the corresponding version on August 3, 1998. The hot-swappable specification enables CPCI to support hot-swappable, and is widely used in industrial automation, medical, military and communication industries. [0003] In the hot-swap specification of CPCI, it is stipulated that the power-on or power-off of each service slot board can be controlled by the BD_SEL# signal output by the hot-swap controller. According to the requirements of the hot-swap specification, in the prior a...
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Inventor 李杰李延松刘华伟
Owner 王献献