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发明公开
CN104731686A 指示灯控制系统及电子装置 无效 - 撤回

指示灯控制系统及电子装置
摘要：
一种指示灯控制系统，应用于一电子装置的HDD背板上，其包括指示灯、CPLD模块、PCH模块及缓冲器。该CPLD模块用于控制该指示灯的状态。该CPLD模块通过该缓冲器电性连接于该指示灯，该PCH模块还电性连接于该缓冲器，当该电子装置的系统启动后至进入操作系统之前，该PCH模块控制该缓冲器截止，使指示灯不受该CPLD模块控制，从而使指示灯处于灭的状态；当该电子装置进入操作系统后，该PCH模块控制该缓冲器导通，使指示灯重新受到该CPLD模块控制。本发明还提供一种应用该指示灯控制系统的电子装置。
摘要（英）：

The invention provides an indicator light control system which is applied to an HDD backboard of an electronic device. The system comprises an indicator light, a CPLD (Complex Programmable Logic Device) module, a PCH (Platform Controller Hub) module and a buffer; the CPLD module is used for controlling the state of the indicator light and electrically connected with the indicator light through the buffering device as well as being electrically connected with the buffering device; after the system of the electronic device is started and before entering the operation system, the PCH module controls the buffering device to intercept so as to enable the indicator light to be free from the control of the CPLD module, and as a result, the indicator light can be in an off state; when the electronic device enters the operation system, the PCH module controls the buffering device to be connected, and then the indicator light is controlled by the CPLD module again. The invention further provides an electronic device using the indicator light to control the system.

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