CN103763110A - Parameter clearing device for communication equipment - Google Patents
Parameter clearing device for communication equipment Download PDFInfo
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- CN103763110A CN103763110A CN201410002037.8A CN201410002037A CN103763110A CN 103763110 A CN103763110 A CN 103763110A CN 201410002037 A CN201410002037 A CN 201410002037A CN 103763110 A CN103763110 A CN 103763110A
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Abstract
The invention discloses a parameter clearing device for communication equipment. The device comprises a double-pole-double-throw parameter clearing switch K1 which is arranged on an outer shell of the communication equipment. A battery of a volatile memory is connected with an input switch K1_1, an output switch K1_3 is connected with the positive pole of a diode V2, an input switch K1_4 is grounded, and an output switch K1_6 is connected with an FPGA input pin of the communication equipment. When a button of the parameter clearing switch is pressed, no power supply exists to supply power for the volatile memory, so that stored parameters are cleared. When the communication equipment is powered up, an FPGA detects that an ERASECTRL pin is changed from a high level to a low level, manual operation is not needed, and a parameter clearing program is automatically called to clear parameters in a nonvolatile storage memory. By means of the device, when the communication equipment is not powered up, the parameters in the volatile memory are cleared by pressing the button of the parameter clearing switch, and the parameters in a nonvolatile storage are automatically cleared when the communication equipment is powered up.
Description
Technical field
The present invention relates to the communications field, especially design a kind of device of removing for communication equipment parameter.
Background technology
In the use of communication equipment, need the parameter of often revising to be generally stored in volatile memory, the parameter in volatile memory is preserved by battery after shutdown; Do not need the parameter of often revising to be generally stored in nonvolatile storage.If remove these parameters, generally need to power up to communication equipment, then remove the operation of parameter, can not adapt to the demand of removing fast parameter in urgent occasion.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of device of removing for communication equipment parameter, so that communication equipment is not when powering up, by pressing, remove parameter shift knob, parameter in volatile memory is removed, after powering up, automatically parameter in nonvolatile storage is removed.
For achieving the above object, the present invention takes following technical scheme:
A kind of device of removing for communication equipment parameter, this device comprises dpdt double-pole double-throw (DPDT) removing parameter K switch 1, described dpdt double-pole double-throw (DPDT) is removed parameter K switch 1 and is located on communication equipment shell, described dpdt double-pole double-throw (DPDT) is removed parameter K switch 1 and is comprised 1 group, removing parameter switch and remove 2 groups, parameter switch, 1 group, described removing parameter switch is comprised of input switch K1_1 and two corresponding output switch K1_2, K1_3 thereof, and 2 groups, described removing parameter switch is comprised of input switch K1_4 and two corresponding output switch K1_5, K1_6 thereof;
Communication equipment power supply is connected with diode V2 negative pole by diode V1, and described diode V2 negative pole is connected with communication equipment volatile memory power end; The battery of described volatile memory is connected with input switch K1_1, and described output switch K1_3 is connected with diode V2 is anodal, described input switch K1_4 ground connection, and described output switch K1_6 connects communication equipment FPGA input pin.
When shift knob is not pressed, K1_1 is connected with K1_3 pin, and K1_4 is connected with K1_5, and it is anodal that cell voltage is added to diode V2 by switch, guarantees that the power supply of the rear volatile memory (D1) of communication equipment shutdown is provided after diode V2 by cell voltage, at communication equipment off-mode, when shift knob is pressed, K1_1 is connected with K1_2, K1_4 is connected with K1_6, the cell voltage that is added to diode V2 positive pole disappears, volatile memory (D1) is owing to there is no Power supply, the parameter of preserving is eliminated, after communication equipment powers up, because K1_4 is connected with K1_6, the data wire of nonvolatile memory (D2) is connected with address wire with the data wire of FPGA respectively with address wire, FPGA detects ERASECTRL pin and becomes low level from high level, without manual operation, Automatically invoked is removed parameter program the parameter in nonvolatile memory (D2) internal memory is removed.
Further, the cell voltage <3V of volatile memory, diode V1 and diode V2 are germanium tube, conducting voltage 0.3V.
Beneficial effect: (1) device provided by the invention can be realized when communication equipment does not power up, by pressing, remove parameter shift knob, parameter in volatile memory can be removed, after communication equipment powers up, automatically parameter in nonvolatile storage is removed, can be adapted to the demand of removing fast parameter in urgent occasion; (2) apparatus of the present invention only adopt a dpdt double-pole double-throw (DPDT) to remove parameter K switch 1, and remainder is completely based on the existing parts of communication equipment, simply efficient.
Accompanying drawing explanation
Fig. 1 is that dpdt double-pole double-throw (DPDT) provided by the invention is removed parameter K switch 1 structure chart.
Fig. 2 is the volatile memory structures figure that the present invention adopts.
Fig. 3 is the FPGA structure chart that the present invention adopts.
Fig. 4 is the non-volatile memory architecture figure that the present invention adopts.
Fig. 5 is that the communication equipment that the present invention adopts powers up rear automatic removing parameter program flow chart.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
In this example, the frequent volatile memory of revising parameter of storage is given an example with M68AW031A, storage does not need the nonvolatile memory of often revising parameter to give an example with AM29LV160BT, and volatile memory and the nonvolatile memory of other model are equally applicable to the present invention.
This example requires volatile memory cell voltage (BATT_POW+) <3V, and diode V1 and V2 are germanium tube, conducting voltage 0.3V.
The voltage of volatile memory (D1) power pin must be greater than the parameter of certain voltage threshold guarantee storage and not lose.The parameter of preserving in nonvolatile memory (D2) can not lost because of having or not of its supply voltage.
As shown in Figure 1, a kind of device of removing for communication equipment parameter provided by the invention, this device comprises dpdt double-pole double-throw (DPDT) removing parameter K switch 1, described dpdt double-pole double-throw (DPDT) is removed parameter K switch 1 and is located on communication equipment shell, described dpdt double-pole double-throw (DPDT) is removed parameter K switch 1 and is comprised 1 group, removing parameter switch and remove 2 groups, parameter switch, 1 group, described removing parameter switch is comprised of input switch K1_1 and two corresponding output switch K1_2, K1_3 thereof, and 2 groups, described removing parameter switch is comprised of input switch K1_4 and two corresponding output switch K1_5, K1_6 thereof.
As shown in Figure 2, communication equipment power supply is connected with diode V2 negative pole by diode V1, and described diode V2 negative pole is connected with communication equipment volatile memory power end, and the connected node of diode V1 and diode V2 is also by a capacity earth in addition; The battery of described volatile memory is connected with input switch K1_1, and described output switch K1_3 is connected with diode V2 is anodal, described input switch K1_4 ground connection, and described output switch K1_6 connects communication equipment FPGA input pin, as shown in Figure 3.
Circuit shown in Fig. 2 guarantees no matter communication equipment powers up or close electricity, can guarantee that the principle that in volatile memory (D1), parameter is not lost is as follows: when communication equipment powers up, because cell voltage (BATT_POW+) is lower than communication equipment supply voltage D3V3, D3V3 is added in the voltage 3V of V2 negative pole through V1, the voltage <3V of V2 anode, V2 is in reverse cut-off, cell voltage (BATT_POW+) can not be added to by V2 the power end of volatile memory (D1), so volatile memory when communication equipment powers up (D1) is D3V3 by the inside communication equipment power voltage supply after V1.Communication equipment closes after electricity, and inside communication equipment D3V3 disappears, and cell voltage (BATT_POW+) voltage after V1 is added to the power end of volatile memory (D1), so volatile memory (D1) is powered by cell voltage after communication equipment shutdown.Communication equipment is at start or off-mode, and volatile memory (D1) power pin has power voltage supply all the time, so can guarantee that the parameter of its storage do not lose.
As shown in Figure 2, when shift knob is not pressed, K1_1 is connected with K1_3 pin, and K1_4 is connected with K1_5, and cell voltage is added to V2 positive pole by switch, guarantees that the power supply of the rear volatile memory (D1) of communication equipment shutdown is provided after V2 by cell voltage, at communication equipment off-mode, when shift knob is pressed, K1_1 is connected with K1_2, K1_4 is connected with K1_6, the cell voltage that is added to V2 positive pole disappears, volatile memory (D1) is owing to there is no Power supply, the parameter of preserving is eliminated, after communication equipment powers up, because K1_4 is connected with K1_6, the data wire of nonvolatile memory (D2) is connected with address wire with the data wire of FPGA respectively with address wire, FPGA detects ERASECTRL pin and becomes low level from high level, without manual operation, Automatically invoked is removed parameter program the parameter in nonvolatile memory (D2) internal memory is removed, communication equipment powers up rear automatic removing parameter program flow process as shown in Figure 5.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. a device of removing for communication equipment parameter, it is characterized in that: this device comprises dpdt double-pole double-throw (DPDT) removing parameter K switch 1, described dpdt double-pole double-throw (DPDT) is removed parameter K switch 1 and is located on communication equipment shell, described dpdt double-pole double-throw (DPDT) is removed parameter K switch 1 and is comprised 1 group, removing parameter switch and remove 2 groups, parameter switch, 1 group, described removing parameter switch is comprised of input switch K1_1 and two corresponding output switch K1_2, K1_3 thereof, and 2 groups, described removing parameter switch is comprised of input switch K1_4 and two corresponding output switch K1_5, K1_6 thereof;
Described communication equipment power supply is connected with diode V2 negative pole by diode V1, and described diode V2 negative pole is connected with communication equipment volatile memory power end; The battery of described volatile memory is connected with input switch K1_1, and described output switch K1_3 is connected with diode V2 is anodal, described input switch K1_4 ground connection, and described output switch K1_6 connects communication equipment FPGA input pin.
2. a kind of device of removing for communication equipment parameter according to claim 1, is characterized in that: the cell voltage <3V of described volatile memory.
3. a kind of device of removing for communication equipment parameter according to claim 1, is characterized in that: described diode V1 and diode V2 are germanium tube diode, and conducting voltage is 0.3V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410002037.8A CN103763110A (en) | 2014-01-03 | 2014-01-03 | Parameter clearing device for communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410002037.8A CN103763110A (en) | 2014-01-03 | 2014-01-03 | Parameter clearing device for communication equipment |
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| CN103763110A true CN103763110A (en) | 2014-04-30 |
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| CN201410002037.8A Pending CN103763110A (en) | 2014-01-03 | 2014-01-03 | Parameter clearing device for communication equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI662548B (en) * | 2018-01-23 | 2019-06-11 | 緯創資通股份有限公司 | Data management circuit |
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| CN1050291A (en) * | 1990-09-28 | 1991-03-27 | 汤万琼 | Static random memory electric ity losing protective socket |
| CN1501405A (en) * | 2002-09-25 | 2004-06-02 | ��ʽ���������Ƽ� | Nonvolatile memory device with sense amplifier securing reading margin |
| CN101896914A (en) * | 2007-11-07 | 2010-11-24 | 高通股份有限公司 | Systems, methods, and apparatuses for erasing memory on wireless devices |
| CN103226976A (en) * | 2013-03-19 | 2013-07-31 | 中国科学院声学研究所 | Apparatus for realizing multi-chip Nandflash storage and read based on FPGA |
| CN203691429U (en) * | 2014-01-03 | 2014-07-02 | 熊猫电子集团有限公司 | Device for removing communication equipment parameter |
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2014
- 2014-01-03 CN CN201410002037.8A patent/CN103763110A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050291A (en) * | 1990-09-28 | 1991-03-27 | 汤万琼 | Static random memory electric ity losing protective socket |
| CN1501405A (en) * | 2002-09-25 | 2004-06-02 | ��ʽ���������Ƽ� | Nonvolatile memory device with sense amplifier securing reading margin |
| CN101896914A (en) * | 2007-11-07 | 2010-11-24 | 高通股份有限公司 | Systems, methods, and apparatuses for erasing memory on wireless devices |
| CN103226976A (en) * | 2013-03-19 | 2013-07-31 | 中国科学院声学研究所 | Apparatus for realizing multi-chip Nandflash storage and read based on FPGA |
| CN203691429U (en) * | 2014-01-03 | 2014-07-02 | 熊猫电子集团有限公司 | Device for removing communication equipment parameter |
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| 陈炳成: "基于FPGA的SPI Flash控制器的设计与实现", 《设计应用》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI662548B (en) * | 2018-01-23 | 2019-06-11 | 緯創資通股份有限公司 | Data management circuit |
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Application publication date: 20140430 |