CN206322169U - Parallel port serial ports transition card based on CPLD - Google Patents
Parallel port serial ports transition card based on CPLD Download PDFInfo
- Publication number
- CN206322169U CN206322169U CN201621288441.7U CN201621288441U CN206322169U CN 206322169 U CN206322169 U CN 206322169U CN 201621288441 U CN201621288441 U CN 201621288441U CN 206322169 U CN206322169 U CN 206322169U
- Authority
- CN
- China
- Prior art keywords
- pin
- integrated circuit
- connect
- circuit
- cpld
- 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.)
- Expired - Fee Related
Links
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
A kind of parallel port serial ports transition card based on CPLD, has：The CPLD circuit being controlled to device；Parallel port control circuit, the circuit is connected with CPLD circuit；RS232 drive circuits, the circuit is connected with CPLD circuit.SD card controls circuit, and the circuit is connected with CPLD circuit；The present apparatus is reasonable in design, plug and play, install fast simple, low cost, data processing speed, high working efficiency, with high speed data transfer ability, can promote the use of parallel port serial ports transition card field.
Description
Technical field
The utility model belongs to technical field of integrated circuits, and in particular to a kind of parallel port serial ports conversion based on CPLD
Card.
Background technology
With microelectronics, the development of the communication technology, main flow Measurement and Control System has been formed with computer measurement and control system and embedding
Enter based on formula TT＆C system.In the Measurement and Control System of main flow, CPLD is that a kind of user voluntarily constructs and patrolled according to respective need
Collect the digital integrated electronic circuit of function.Its basic design method is by Integrated Development software platform, with schematic diagram, Hardware description language
The methods such as speech, generate corresponding file destination, code are sent in objective chip by download cable, realize the numeral of design
System.
Parallel port serial ports control card provides the number of serial ports, parallel port and serial ports while connecting for user equipment and provide a parallel port
It is higher according to transmission speed, it is often used in business POS machine, automatic checkout system and terminal device etc., easily plug and play, peace
Dress, the operating efficiency for improving user.
The content of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provide it is a kind of it is reasonable in design,
Plug and play, install fast simple, low cost, data processing speed, high working efficiency, with high speed data transfer ability based on
CPLD parallel port serial ports transition card.
Solving the technical scheme of above-mentioned technical problem use is：Have：The CPLD circuit being controlled to device；Control parallel port
Circuit processed, the circuit is connected with CPLD circuit；RS232 drive circuits, the circuit is connected with CPLD circuit.
Parallel port control circuit of the present utility model is：Integrated circuit U1 24 pin connect crystal oscillator Y1 one end and electric capacity C1 one
End, 25 pin connect the crystal oscillator Y1 other end and electric capacity C2 one end, integrated circuit U1 33 pin, 32 pin, 35 pin, 26 pin, 27 pin, 29
The pin of the pin of the pin of pin~31,22 pin~19,17 pin~15,18 pin connect the pin of integrated circuit U2 35 pin, 32 pin~27,25 pin~21 successively
Pin, 19 pin, 17 pin, 14 pin, 13 pin, the pin of the pin of integrated circuit U1 37 pin~40,43 pin, 44 pin, 2 pin~4,8 pin, 9 pin, 6 pin,
14 pin, 1 pin, 41 pin, 42 pin, 7 pin, 5 pin connecting connector the J1 successively pin of 20 pin~3, integrated circuit U1 13 pin pass through resistance
R1 is grounded, 5V power supplys is connect by resistance R2, and integrated circuit U1 36 pin connect 5V power supplys by resistance R3, are grounded by resistance R4,
Integrated circuit U1 28 pin connect 5V power supplys by resistance R5, are grounded by resistance R6, integrated circuit U1 12 pin and 23 pin ground connection,
Integrated circuit U1 34 pin and 11 pin and 10 pin connect the other end ground connection of 5V power supplys, electric capacity C1 and electric capacity C2；Integrated circuit U1
Model CH432Q.
RS232 drive circuits of the present utility model are：Integrated circuit U3 1 pin connects electric capacity C3 one end, 3 pin and meets electric capacity C3
The other end, 4 pin connect electric capacity C5 one end, 5 pin and connect the electric capacity C5 other end, 11 pin and 12 pin and connect the 76 of integrated circuit U2 respectively
Pin and 79 pin, 2 pin connect 2 pin and 3 that electric capacity C4 one end, 6 pin connect electric capacity C6 one end, 13 pin and 14 pin difference connecting connector J2
Pin, 16 pin connect 5V power supplys, 5 pin ground connection, electric capacity C4 another termination 5V power supplys, electric capacity C5 other end ground connection；Integrated circuit U3
Model MAX232CSE.
CPLD circuit of the present utility model is：The pin of the pin of integrated circuit U2 35 pin, 32 pin~27,25 pin~21,19 pin, 17
Pin, 14 pin, 13 pin connect parallel port control circuit, the pin of integrated circuit U2 56 pin~54,52 pin, 50 pin connecting connector J4 8 pin~4
Pin, integrated circuit U2 76 pin and 79 pin connect RS232 drive circuits, and integrated circuit U2 87 pin connect crystal oscillator Y2 4 pin, integrated electricity
Road U2 15 pin, 62 pin, 73 pin, the 4 pin connecting connector J3 pin of 1 pin~4, integrated circuit U2 82 pin, 66 pin, 51 pin, 34 pin,
18 pin, 3 pin, 39 pin, 91 pin connect 3V power supplys, integrated circuit U2 11 pin, 26 pin, 33 pin, 43 pin, 53 pin, 59 pin, 65 pin, 74
Pin, 78 pin, 95 pin, 86 pin, 38 pin ground connection, crystal oscillator Y2 1 pin connect 3V power supplys, 3 pin ground connection, connector J3 5 pin ground connection, connection
Device J4 3 pin connect 5V power supplys, 1 pin and 2 pin ground connection；Integrated circuit U2 model EPM3128ATI100-10N, crystal oscillator Y2 type
Number be JHY50M.
Because the utility model employs CPLD circuit, parallel port control circuit, RS232 drive circuits, when data are from parallel port
Peripheral hardware is sent, and CPLD circuit receives the data that are sent from parallel port and simultaneously transmits data to RS232 drive circuits, when there is data
Sent from serial ports peripheral hardware, CPLD circuit receives and transmits data to parallel port control circuit, by parallel port control circuit with inciting somebody to action
Data send and just gone out；The present apparatus is reasonable in design, plug and play, install that simple, low cost, data processing speed be fast, work effect
Rate is high, with high speed data transfer ability, can promote the use of serial ports parallel port transition card field.
Brief description of the drawings
Fig. 1 is electrical principle block diagram of the present utility model.
Fig. 2 is electronic circuit schematic diagram of the present utility model.
Embodiment
The utility model is described in further details with reference to the accompanying drawings and examples, but the utility model is not limited to this
A little embodiments.
Embodiment 1
In Fig. 1, parallel port serial ports transition card of the utility model based on CPLD by CPLD circuit, parallel port control circuit,
RS232 drive circuits, parallel port control circuit is connected with CPLD circuit, and RS232 drive circuits are connected with CPLD circuit.
In fig. 2, the CPLD circuit of the present embodiment is by integrated circuit U2, crystal oscillator Y2, connector J3, connector J4 connection structures
Into integrated circuit U2 model EPM3128ATI100-10N, crystal oscillator Y2 model JHY50M.Integrated circuit U2 35 pin,
The pin of the pin of 32 pin~27,25 pin~21,19 pin, 17 pin, 14 pin, 13 pin connect parallel port control circuit, integrated circuit U2 56 pin~54
Pin, 52 pin, the 50 pin connecting connector J4 pin of 8 pin~4, integrated circuit U2 76 pin and 79 pin connect RS232 drive circuits, integrated electricity
Road U2 87 pin connect crystal oscillator Y2 4 pin, integrated circuit U2 15 pin, 62 pin, 73 pin, the 4 pin connecting connector J3 pin of 1 pin~4, collection
3V power supplys, integrated circuit U2 11 pin, 26 are connect into 82 pin of circuit U 2,66 pin, 51 pin, 34 pin, 18 pin, 3 pin, 39 pin, 91 pin
Pin, 33 pin, 43 pin, 53 pin, 59 pin, 65 pin, 74 pin, 78 pin, 95 pin, 86 pin, 38 pin ground connection, crystal oscillator Y2 1 pin connect 3V power supplys,
3 pin are grounded, connector J3 5 pin ground connection, and connector J4 3 pin connect 5V power supplys, 1 pin and 2 pin ground connection.
In fig. 2, the parallel port control circuit of the present embodiment is by integrated circuit U1, resistance R1~resistance R6, electric capacity C1, electric capacity
C2, crystal oscillator Y1 are connected and composed, integrated circuit U1 model CH432Q.Integrated circuit U1 24 pin connect crystal oscillator Y1 one end and electricity
Hold C1 one end, 25 pin and connect the crystal oscillator Y1 other end and electric capacity C2 one end, integrated circuit U1 33 pin, 32 pin, 35 pin, 26
The pin of the pin of the pin of pin, 27 pin, 29 pin~31,22 pin~19,17 pin~15,18 pin connect integrated circuit U2 35 pin, 32 pin~27 successively
The pin of pin, 25 pin~21,19 pin, 17 pin, 14 pin, 13 pin, the pin of the pin of integrated circuit U1 37 pin~40,43 pin, 44 pin, 2 pin~4,8
Pin, 9 pin, 6 pin, 14 pin, 1 pin, 41 pin, 42 pin, 7 pin, 5 pin connecting connector the J1 successively pin of 20 pin~3, the 13 of integrated circuit U1
Pin is grounded by resistance R1,5V power supplys is connect by resistance R2, and integrated circuit U1 36 pin connect 5V power supplys, by electricity by resistance R3
Hinder R4 ground connection, integrated circuit U1 28 pin connect 5V power supplys by resistance R5, are grounded by resistance R6, integrated circuit U1 12 pin and
23 pin ground connection, integrated circuit U1 34 pin and 11 pin and 10 pin connect the other end ground connection of 5V power supplys, electric capacity C1 and electric capacity C2.
In fig. 2, the RS232 drive circuits of the present embodiment are connected by integrated circuit U3, electric capacity C3~electric capacity C6, connector J2
Connect composition, integrated circuit U3 model MAX232CSE.Integrated circuit U3 1 pin connects electric capacity C3 one end, 3 pin and meets electric capacity C3
The other end, 4 pin connect electric capacity C5 one end, 5 pin and connect the electric capacity C5 other end, 11 pin and 12 pin and connect the 76 of integrated circuit U2 respectively
Pin and 79 pin, 2 pin connect 2 pin and 3 that electric capacity C4 one end, 6 pin connect electric capacity C6 one end, 13 pin and 14 pin difference connecting connector J2
Pin, 16 pin connect 5V power supplys, 5 pin ground connection, electric capacity C4 another termination 5V power supplys, electric capacity C5 other end ground connection.
Operation principle of the present utility model is as follows：
System electrification, crystal oscillator Y2 work, first, integrated circuit U2 starts initial work, completes CPLD hardware configuration
Work：The serial ports control logic of 2 passages.Hereafter, circuit enters normal operating conditions.
When there are data to be sent from parallel port peripheral hardware, i.e., sent from connector J1, integrated circuit U2 is received to be sent from parallel port
Carry out data, and transmit data to serial ports.Data are input to integrated from the pin of connector J1 16 pin~12, the pin output of 5 pin~7
The pin of the pin of 1 pin of circuit U 1~4,41 pin~44, is handled by integrated circuit U1 protocol conversion, data from integrated circuit U1 15
Pin is exported, and is input to integrated circuit U2 14 pin, integrated circuit U2 receives the data sent from parallel port, at the same time, integrated
Circuit U 2 starts the control logic of serial ports, and the data that parallel port is sent are sent by serial ports.Data are from integrated circuit U2
76 pin output, be input to integrated circuit U3 11 pin, by integrated circuit U3 level translation handle, from integrated circuit U3's
14 pin are exported, and are input to connector J2, and the data that parallel port is sent are exported from connector J2.
When there are data to be sent from serial ports peripheral hardware, i.e., sent from connector J2, integrated circuit U2 is received and sent from serial ports
Data, and data are sent by parallel port.Data are exported from connector J2 2 pin, are input to the 13 of integrated circuit U3
Pin, by being handled by integrated circuit U3 level translation, exports from integrated circuit U3 12 pin, is input to integrated circuit U2.
Integrated circuit U2 receives data, and starts the control logic of corresponding serial ports, transfers data to parallel port.Data are from integrated circuit
U2 13 pin output, is input to integrated circuit U1 18 pin, is handled by integrated circuit U1 protocol conversion, data are from integrated electricity
The pin output of the pin of road U1 1 pin~4,41 pin~44, is input to connector J1, the data that serial ports is sent is exported from connector J1.
Claims (4)
1. a kind of parallel port serial ports transition card based on CPLD, it is characterised in that：Have：
The CPLD circuit being controlled to device；
Parallel port control circuit, the circuit is connected with CPLD circuit；
RS232 drive circuits, the circuit is connected with CPLD circuit.
2. the parallel port serial ports transition card according to claim 1 based on CPLD, it is characterised in that described parallel port control electricity
Lu Wei：Integrated circuit U1 24 pin connect crystal oscillator Y1 one end and electric capacity C1 one end, 25 pin connect crystal oscillator the Y1 other end and electric capacity
C2 one end, the pin of the pin of integrated circuit U1 33 pin, 32 pin, 35 pin, 26 pin, 27 pin, 29 pin~31,22 pin~19,17 pin~15
Pin, 18 pin connect the pin of the pin of integrated circuit U2 35 pin, 32 pin~27,25 pin~21,19 pin, 17 pin, 14 pin, 13 pin successively, integrated
The pin of the pin of 37 pin of circuit U 1~40,43 pin, 44 pin, 2 pin~4,8 pin, 9 pin, 6 pin, 14 pin, 1 pin, 41 pin, 42 pin, 7 pin, 5 pin
The pin of connecting connector J1 20 pin~3 successively, integrated circuit U1 13 pin connect 5V power supplys by resistance R1 ground connection, by resistance R2,
Integrated circuit U1 36 pin connect 5V power supplys by resistance R3, are grounded by resistance R4, and integrated circuit U1 28 pin pass through resistance R5
Connect 5V power supplys, be grounded by resistance R6, integrated circuit U1 12 pin and 23 pin ground connection, integrated circuit U1 34 pin and 11 pin and
10 pin connect the other end ground connection of 5V power supplys, electric capacity C1 and electric capacity C2；Integrated circuit U1 model CH432Q.
3. the parallel port serial ports transition card according to claim 1 based on CPLD, it is characterised in that described RS232 driving electricity
Lu Wei：Integrated circuit U3 1 pin, which connects electric capacity C3 one end, 3 pin and connects the electric capacity C3 other end, 4 pin, connects electric capacity C5 one end, 5 pin
The other end, 11 pin and 12 pin for meeting electric capacity C5 connect integrated circuit U2 76 pin and 79 pin, 2 pin and connect electric capacity C4 one end, 6 pin respectively
Connecing electric capacity C6 one end, 13 pin and 14 pin, connecting connector J2 2 pin and 3 pin, 16 pin connect 5V power supplys, 5 pin ground connection, electric capacity C4 respectively
Another termination 5V power supplys, electric capacity C5 the other end ground connection；Integrated circuit U3 model MAX232CSE.
4. the parallel port serial ports transition card according to claim 1 based on CPLD, it is characterised in that described CPLD circuit is：
The pin of the pin of integrated circuit U2 35 pin, 32 pin~27,25 pin~21,19 pin, 17 pin, 14 pin, 13 pin connect parallel port control circuit, integrated
The pin of 56 pin of circuit U 2~54,52 pin, the 50 pin connecting connector J4 pin of 8 pin~4, integrated circuit U2 76 pin and 79 pin connect
RS232 drive circuits, integrated circuit U2 87 pin connect crystal oscillator Y2 4 pin, and integrated circuit U2 15 pin, 62 pin, 73 pin, 4 pin connect
The pin of connector J3 1 pin~4, integrated circuit U2 82 pin, 66 pin, 51 pin, 34 pin, 18 pin, 3 pin, 39 pin, 91 pin connect 3V electricity
Source, integrated circuit U2 11 pin, 26 pin, 33 pin, 43 pin, 53 pin, 59 pin, 65 pin, 74 pin, 78 pin, 95 pin, 86 pin, 38 pin connect
Ground, crystal oscillator Y2 1 pin connects 3V power supplys, 3 pin ground connection, and connector J3 5 pin ground connection, connector J4 3 pin connect 5V power supplys, 1 pin and 2
Pin is grounded；Integrated circuit U2 model EPM3128ATI100-10N, crystal oscillator Y2 model JHY50M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621288441.7U CN206322169U (en) | 2016-11-28 | 2016-11-28 | Parallel port serial ports transition card based on CPLD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621288441.7U CN206322169U (en) | 2016-11-28 | 2016-11-28 | Parallel port serial ports transition card based on CPLD |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206322169U true CN206322169U (en) | 2017-07-11 |
Family
ID=59264597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621288441.7U Expired - Fee Related CN206322169U (en) | 2016-11-28 | 2016-11-28 | Parallel port serial ports transition card based on CPLD |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206322169U (en) |
-
2016
- 2016-11-28 CN CN201621288441.7U patent/CN206322169U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103106167B (en) | A kind of USB device and control method thereof | |
| CN101840387B (en) | USB (Universal Serial Bus) Key device and method for realizing smart card communications using USB interface | |
| CN103765341A (en) | System and method for providing power through a reverse local data transfer connection | |
| CN106445858A (en) | Information processing method, information processing module and electronic device | |
| CN103116512A (en) | Method for upgrading firmware of CPLD (complex programmable logic device) | |
| CN206322169U (en) | Parallel port serial ports transition card based on CPLD | |
| CN109358995A (en) | A kind of multifunctional testing backboard and test method | |
| CN206353315U (en) | Circuit that is electric and sending 3B command signals on a kind of automatic detection chip | |
| CN106569572B (en) | Mainboard and computerized control system with the mainboard | |
| CN104484302B (en) | It is USB interface-based to realize system of the two-way communication with controlling between two main frames | |
| CN207473602U (en) | A kind of USB interface-based CAN bus control device | |
| CN106384497A (en) | Portable electric operation and maintenance carrier meter reading adapter | |
| CN101344874B (en) | Method and device for controlling I2C device | |
| CN206321973U (en) | Multichannel parallel port serial line interface transition card based on CPLD | |
| CN206321974U (en) | CAN circuit control device based on CPLD | |
| CN214314637U (en) | One-to-two quick-charging data line adopting TYPE-C interface input | |
| CN205080389U (en) | Wired network connection internet's of accessible control circuit in base | |
| CN206321972U (en) | serial port control circuit based on CPLD | |
| CN206312119U (en) | Plural number with PCIE and USB interface adds multiplication device | |
| CN207676165U (en) | A kind of fault data recorder device based on Aerial Electronic Equipment | |
| CN206321970U (en) | IIC circuit control devices based on CPLD | |
| CN206022836U (en) | A kind of Signals Transfer Board | |
| CN203149558U (en) | Multi-serial-port data acquisition card | |
| CN102364452A (en) | Realization method for thermal plugging use of PS2 interface keyboard and mouse | |
| CN207676338U (en) | A kind of single USB turns RS485, the circuit of RS422, RS232 and Transistor-Transistor Logic level |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20171128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |