CN106782661B - A kind of hand PROM data write device - Google Patents
A kind of hand PROM data write device Download PDFInfo
- Publication number
- CN106782661B CN106782661B CN201611135998.1A CN201611135998A CN106782661B CN 106782661 B CN106782661 B CN 106782661B CN 201611135998 A CN201611135998 A CN 201611135998A CN 106782661 B CN106782661 B CN 106782661B
- Authority
- CN
- China
- Prior art keywords
- circuit
- data
- prom
- data write
- address
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
- G11C17/14—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards in which contents are determined by selectively establishing, breaking or modifying connecting links by permanently altering the state of coupling elements, e.g. PROM
- G11C17/18—Auxiliary circuits, e.g. for writing into memory
Landscapes
- Read Only Memory (AREA)
Abstract
The present invention proposes a kind of hand PROM data write device, belongs to electronic technology field, including start-up circuit U1, address production electric circuit U2, voltage generation circuit U3, data write circuit U 4, data reading circuit U5.The device can control data being cured in specified PROM storage unit one by one with hand, and the storage unit that can also be specified from PROM controls the reading by data one by one with hand.The present invention has simple, practical, small in size, light-weight, at low cost, easy to carry advantage, can carry out data write to the PROM in airborne electronic equipment product using the present invention, can also carry out Data Detection.
Description
Technical field
The invention belongs to electronic technology fields, are related to a kind of hand PROM data write device.
Background technique
Airborne electronic equipment product requires storing data at present, due to the bad environments on machine, to prevent loss of data, uses
It is a kind of selection well that PROM (programmable read only memory), which carrys out storing data,.On the other hand, it can also be stored and be added using PROM
The key of close program.Data write is set just to need PROM data write device to PROM.The present invention designs a kind of hand
PROM solidification equipment, it has many advantages, such as small in size, light-weight, and at low cost, easy to carry, it cannot be only used for airborne products
It in R&D process, is also easily carried to outfield, carries out product up-gradation, the maintenance of product or troubleshooting etc..
Summary of the invention
The purpose of the present invention is to propose to a kind of simple, practical, small in size, light-weight, at low cost, portable PROM numbers
According to solidification equipment, being cured in specified PROM storage unit one by one can be controlled data with hand using the present invention,
The storage unit that can also be specified from PROM controls the reading by data one by one with hand.It cannot be only used for airborne products
It in R&D process, is also easily carried to outfield, carries out product up-gradation, the maintenance of product or troubleshooting etc..
The technical solution of the present invention is as follows:
A kind of hand PROM data write device, it is characterised in that: including start-up circuit U1, address production electric circuit
U2, voltage generation circuit U3, data write circuit U 4, data reading circuit U5；
Start-up circuit U1 is connect with voltage generation circuit U3, data write circuit U 4 and data reading circuit U5；Start-up circuit
Control voltage generation circuit U3, data write circuit U 4 are effective to PROM in synchronization when U1 is connected, start-up circuit U1 release
When control data reading circuit U5 it is effective；
Address production electric circuit U2 provides address wire and the address wire of PROM is separately connected；The address wire of address production electric circuit U2
It is controlled respectively by control switch；
Voltage generation circuit U3 generates the pulse voltage for meeting and needing when PROM programming, the pulse voltage control PROM's
Program pin；
Data write circuit U 4 is made of the bus buffer that data form circuit and ternary output；The data form electricity
Road provides data line and the data line of PROM is separately connected；The data line that data form circuit is controlled respectively by control switch；
Data reading circuit U5 is made of the bus buffer of data display circuit and ternary output, is controlled by start-up circuit U1
The tri-state gate of bus buffer in data reading circuit U5 processed is realized from PROM and reads data.
Further preferred embodiment, a kind of hand PROM data write device, it is characterised in that: start-up circuit U1
It is made of a microswitch；Start-up circuit U1 microswitch push-button connects high level by manual palpation, and control voltage generates electricity
Road U3, data write circuit U 4 are effective to PROM in synchronization, and when start-up circuit U1 microswitch touches release, button is automatic
Ground connection, control data reading circuit U5 are effective.
Further preferred embodiment, a kind of hand PROM data write device, it is characterised in that: address generates electricity
Road U2 is made of eight toggle switch, eight light emitting diodes, eight resistance, for providing eight of eight address wires and PROM
Address wire connection；Toggle switch up dials address wire and connects high level, and toggle switch dials address wire ground connection, address production electric circuit down
The light emitting diode of U2 is used to show the state of current address.
Further preferred embodiment, a kind of hand PROM data write device, it is characterised in that: voltage generates electricity
Road U3 includes monostable oscillator, driver, triode；By triggering one-shot circuit U 1, voltage generation circuit U3 is generated
One meets the pulse voltage needed when PROM programming.
Further preferred embodiment, a kind of hand PROM data write device, it is characterised in that: data form electricity
Route four toggle switch, four light emitting diodes, four resistance compositions；4 data lines and PROM of data write circuit U 4
4 data lines connection；Toggle switch up dials data line and connects high level, and toggle switch is grounded toward data line is set aside；Pass through touching
One-shot circuit U 1 is sent out, data write circuit U 4 meets the number needed when PROM programming in generation 1 simultaneously on 4 data lines
According to pulse；The light emitting diode of data write circuit U 4 is used to show the state of current data.
Beneficial effect
Advantages of the present invention: the present apparatus can manual control data one by one be cured to specified PROM storage unit
In, can also from PROM designated memory cell one by one manually control reading data, can be very good using PROM store
Space.The present invention has simple, practical, small in size, light-weight, at low cost, easy to carry advantage.It can be to electricity using the present invention
Significant data in sub- product is saved, while the key of also curable encipheror.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is a kind of functional block diagram of hand PROM data write device of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, the embodiment is exemplary, it is intended to it is used to explain the present invention, and
It is not considered as limiting the invention.
Referring to Fig. 1, a kind of hand PROM data write device includes: start-up circuit U1, address production electric circuit U2, voltage
Generation circuit U3, data write circuit U 4, data reading circuit U5.
Start-up circuit U1 is made of a microswitch.Start-up circuit U1 and voltage generation circuit U3, data write circuit
U4 is connected with data reading circuit U5.The microswitch push-button of U1 meets+5V by manual palpation, come control voltage generation circuit U3,
Data write circuit U 4 is effective to PROM in synchronization.When the microswitch of U1 touches release, button automatic earthing, at this moment only
There is data reading circuit U5 effective.
Address production electric circuit U2 is made of eight toggle switch, eight light emitting diodes, eight resistance, for providing eight
Address wire and eight address wires of PROM connect.Toggle switch up dials address wire and meets+5V, and toggle switch is dialled address wire down and connect
Eight address wires on ground, U2 provide 256 different addresses for PROM, and the light emitting diode of address production electric circuit U2 is used to show
The state of current address.
Voltage generation circuit U3 is made of circuits such as monostable oscillator, driver, a triodes.It is primary by triggering
The microswitch of U1, U3 generate one and meet the pulse voltage needed when PROM programming, the programming of output pulse control PROM
Pin.Present invention employs 74LS123 as monostable oscillator.
Data write circuit U 4 is made of the bus buffer that data form circuit and ternary output, and wherein data form electricity
Route the composition such as four toggle switch, four light emitting diodes, four resistance.4 data lines of U4 and 4 data lines of PROM
Connection, toggle switch up dial data line and meet+5V, and toggle switch is grounded toward data line is set aside.By the fine motion for triggering a U1
Switch, U4 meet the data pulse needed when PROM programming in generation 1 simultaneously on 4 data lines.Light emitting diode is used to show
Show the state of current data.Bus buffer present invention employs 74LS125 as ternary output.
Data reading circuit U5 is made of the bus buffer of data display circuit and ternary output, passes through the microswitch of U1
Ground connection carrys out the tri-state gate of control bus buffer, reads data for realizing from PROM.Present invention employs 74LS125 as three
The bus buffer of state output.
The present invention can control data being cured in specified PROM storage unit one by one with hand, can also be from
PROM specified storage unit controls the reading by data one by one with hand.The present invention has simple, practical, small in size, again
Amount is light, advantage at low cost, easy to carry, can carry out data write to the PROM in airborne electronic equipment product using the present invention,
It can carry out Data Detection.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (4)
1. a kind of hand PROM data write device, it is characterised in that: including start-up circuit U1, address production electric circuit U2, electricity
Press generation circuit U3, data write circuit U 4, data reading circuit U5；
Start-up circuit U1 is connect with voltage generation circuit U3, data write circuit U 4 and data reading circuit U5；
Start-up circuit U1 is made of a microswitch；Start-up circuit U1 microswitch push-button connects high level by manual palpation,
It is effective to PROM in synchronization to control voltage generation circuit U3, data write circuit U 4, start-up circuit U1 microswitch touches
When release, it is effective to control data reading circuit U5 for button automatic earthing；
Address production electric circuit U2 provides address wire and the address wire of PROM is separately connected；The address wire of address production electric circuit U2 passes through
Control switch controls respectively；
Voltage generation circuit U3 generates the pulse voltage for meeting and needing when PROM programming, the programming of the pulse voltage control PROM
Pin；
Data write circuit U 4 is made of the bus buffer that data form circuit and ternary output；The data form circuit and mention
It is separately connected for the data line of data line and PROM；The data line that data form circuit is controlled respectively by control switch；
Data reading circuit U5 is made of the bus buffer of data display circuit and ternary output, controls number by start-up circuit U1
According to the tri-state gate of bus buffer in reading circuit U5, realizes from PROM and read data.
2. a kind of hand PROM data write device according to claim 1, it is characterised in that: address production electric circuit U2 by
Eight toggle switch, eight light emitting diodes, eight resistance compositions, for providing eight address wires of eight address wires and PROM
Connection；Toggle switch up dials address wire and connects high level, and toggle switch dials address wire ground connection, the hair of address production electric circuit U2 down
Optical diode is used to show the state of current address.
3. a kind of hand PROM data write device according to claim 1, it is characterised in that: voltage generation circuit U3 packet
Include monostable oscillator, driver, triode；By triggering one-shot circuit U 1, voltage generation circuit U3 generates one completely
The pulse voltage that sufficient PROM needs when programming.
4. a kind of hand PROM data write device according to claim 1, it is characterised in that: data form circuit by four
A toggle switch, four light emitting diodes, four resistance compositions；4 data lines of data write circuit U 4 and 4 radicals of PROM
It is connected according to line；Toggle switch up dials data line and connects high level, and toggle switch is grounded toward data line is set aside；It is once opened by triggering
Dynamic circuit U 1, data write circuit U 4 meet the data pulse needed when PROM programming in generation 1 simultaneously on 4 data lines；
The light emitting diode of data write circuit U 4 is used to show the state of current data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611135998.1A CN106782661B (en) | 2016-12-12 | 2016-12-12 | A kind of hand PROM data write device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611135998.1A CN106782661B (en) | 2016-12-12 | 2016-12-12 | A kind of hand PROM data write device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106782661A CN106782661A (en) | 2017-05-31 |
| CN106782661B true CN106782661B (en) | 2019-10-25 |
Family
ID=58879815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611135998.1A Active CN106782661B (en) | 2016-12-12 | 2016-12-12 | A kind of hand PROM data write device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106782661B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988042A (en) * | 2005-12-16 | 2007-06-27 | 富晶半导体股份有限公司 | One-time Programmable Memory and Its Data Burning Method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7403844B2 (en) * | 2005-08-31 | 2008-07-22 | Invacare Corporation | Method and apparatus for programming parameters of a power driven wheelchair for a plurality of drive settings |
-
2016
- 2016-12-12 CN CN201611135998.1A patent/CN106782661B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988042A (en) * | 2005-12-16 | 2007-06-27 | 富晶半导体股份有限公司 | One-time Programmable Memory and Its Data Burning Method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106782661A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103941597B (en) | Power control circuit and there is the electronic installation of this power control circuit | |
| CN103902158A (en) | Method and terminal for managing application icon | |
| CN105185623A (en) | DC electronic arc-extinguishing device | |
| CN106782661B (en) | A kind of hand PROM data write device | |
| CN103823540A (en) | Starting-up control circuit | |
| CN201260063Y (en) | Over-voltage protection circuit based on single power supply voltage and electric appliance device having the circuit | |
| CN102221865A (en) | Infrared control system | |
| CN107394523B (en) | Intelligent socket system and control method thereof | |
| CN106926585B (en) | Chip maintenance device and method | |
| CN106199146B (en) | electroscope | |
| CN204102542U (en) | A kind of display module | |
| CN109545158A (en) | Protection signal generating circuit and protection device | |
| CN206313784U (en) | A kind of encryption equipment test system | |
| CN205881149U (en) | Portable multi -functional intelligent display wireless controller | |
| CN204945730U (en) | A kind of programmable device High-speed I/O and high tension protection circuit | |
| CN109004466A (en) | A kind of Internet of Things intelligent socket, socket and wall are inserted | |
| CN203519685U (en) | Control panel used in electric energy acquisition terminal | |
| CN208315205U (en) | A kind of circuit of compatible multiple interfaces SSD | |
| CN206657266U (en) | A kind of production line power switch device with fingerprint control | |
| DE10251804A1 (en) | Electric house installation system | |
| CN205335832U (en) | Asymmetric clamper module circuit | |
| CN203788522U (en) | Dual mode flash lamp control circuit and terminal device | |
| CN210377474U (en) | Point reading identification response device | |
| CN220773750U (en) | Remote switch circuit | |
| CN214409668U (en) | PLC input point expanding unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |