CN207460202U - A kind of serial ports based on STM32 microcontrollers and Ethernet conversion equipment - Google Patents

Abstract

The utility model is related to a kind of serial ports based on STM32 microcontrollers and Ethernet conversion equipment.The utility model includes STM32 singlechip minimum system circuits and power circuit connected to it, isolation circuit, JTAG debugging circuit, serial communication circuit, ethernet communication control circuit.Power circuit includes decompression isolated power supply chip, power supply voltage stabilizing chip, power supply and introduces plug-in unit；Ethernet communication control circuit includes ethernet communication control chip, RJ45 interfaces.The utility model has small, at low cost, low in energy consumption, strong antijamming capability, stability high, supports the data transmission under TCP_Server, TCP_Client, UDP, UDP_Server pattern.And only remotely it can be operated and be monitored by device name log-on webpage.

Description

A kind of serial ports based on STM32 microcontrollers and Ethernet conversion equipment

Technical field

The utility model belongs to industrial control field, is related to a kind of serial ports based on STM32 microcontrollers and is converted with Ethernet Device is mainly used for embeded processor, sensor, PLC, controller, detector, the data storage in internet-of-things terminal Etc. RS232 interfaces equipment connection internet.

Technical background

The technology of Internet of things communication technology emerging as 21 century, is grown rapidly in the world in recent years. The IT such as IBM, Microsoft industries giant is also proposed the technology of Internet of things achievement of oneself one after another.With arriving for the Internet of things era Come, country of China has fully recognized the importance of technology of Internet of things revolution with government.Chinese Internet industry in recent years It quickly grows, necessary basis has been had been provided in following Internet of Things industry development.But the development of the Internet of Things in China is existing Shape is also in an initiation state, and it is to restrict the key factor of China's Internet of Things development to lack core technology and independent intellectual property right One of.

Serial ports is concentrated mainly on miniaturization, low-power consumption, low cost with Ethernet conversion equipment research direction in the prior art On.But with the continuous expansion of Internet of things system networking scope, interference and influence that the remote conveyors of data is come, with And the high efficiency and stability communicated under complex environment, the simple access of equipment increasingly become people and consider the problems of.

The content of the invention

The purpose of this utility model is just to provide a kind of serial ports based on STM32 microcontrollers and Ethernet conversion equipment.

The utility model include STM32 singlechip minimum system circuits and power circuit connected to it, isolation circuit, JTAG debugging circuit, serial communication circuit, ethernet communication control circuit.

The STM32 singlechip minimum system circuits include a STM32 processor, a zener diode, two Crystal oscillator, four Chip-Rs, 12 ceramic disc capacitors；1 foot of STM32 processors is connected with 1 foot of second Chip-R, and 3 The both ends of foot, 4 feet respectively with the first crystal oscillator are connected, and the both ends of 5 feet, 6 feet respectively with the second crystal oscillator are connected, 7 feet and two pole of voltage stabilizing 1 foot of the 1 foot connection of 1 foot of pipe, 1 foot of the first Chip-R, the 5th ceramic disc capacitor, 8 feet and the 11st ceramic disc capacitor, the tenth 1 foot, 2 feet, the 12nd ceramic disc capacitor of the 11st ceramic disc capacitor of the 1 foot connection of two ceramic disc capacitors, 9 feet and the 4th Chip-R 2 feet connection, 23 feet, 35 feet, 47 feet, 1 foot of the first ceramic disc capacitor, 1 foot of the second ceramic disc capacitor, the 1 of the 3rd ceramic disc capacitor Foot, 1 foot of the 4th ceramic disc capacitor, 2 feet of the 5th ceramic disc capacitor, 1 foot of the 6th ceramic disc capacitor, 1 foot of the 7th ceramic disc capacitor, 1 foot of eight ceramic disc capacitors, 1 foot of the 9th ceramic disc capacitor, 1 foot of the tenth ceramic disc capacitor, 1 foot of the 3rd Chip-R and GND connect It connects, 24 feet, 36 feet, 48 feet, 2 feet of the first zener diode, 2 feet of the first Chip-R, 2 feet of the second Chip-R, 2 feet of four Chip-Rs, 2 feet of the 6th ceramic disc capacitor, 2 feet, 2 feet, the 9th porcelain of the 8th ceramic disc capacitor of the 7th ceramic disc capacitor 2 feet, 2 feet of the tenth ceramic disc capacitor of chip capacitor are connected with CPU power supplies, and 44 feet are connected with 2 feet of the 3rd Chip-R；The 2 feet of 1 foot, 2 feet of one crystal oscillator respectively with 2 feet of the first ceramic disc capacitor, the second ceramic disc capacitor are connected；1 foot of the second crystal oscillator, 2 2 feet of the foot respectively with 2 feet of the 3rd ceramic disc capacitor, the 4th ceramic disc capacitor are connected；

The power circuit includes a double-legged ox horn contact pin wire connection terminal, decompression isolated power supply chip, an electricity Source voltage stabilizing chip, a 400mA resettable fuse, a current limliting Chip-R, a light emitting diode, 2 inductance, two Courage capacitance, 7 ceramic disc capacitors；1 foot of double-legged ox horn contact pin wire connection terminal is connected with 1 foot of 400mA resettable fuses； 2 feet of 400mA resettable fuses and 1 foot of current limliting Chip-R, 1 foot of the first courage capacitance, the first ceramic disc capacitor 1 foot, The 3 feet connection of 1 foot of the second ceramic disc capacitor, 1 foot for being depressured isolated power supply chip, power supply voltage stabilizing chip；The 2 of current limliting Chip-R 1 foot of foot and light emitting diode connects；2 feet of 2 feet of light emitting diode and the first courage capacitance, 2 feet of the first ceramic disc capacitor, 2 feet of two ceramic disc capacitors, decompression 2 feet of isolated power supply chip, 1 foot of power supply voltage stabilizing chip, 2 feet of the 3rd ceramic disc capacitor, the 2 feet of four ceramic disc capacitors, 2 feet of the 5th ceramic disc capacitor, 1 foot of the second inductance, double-legged ox horn contact pin wire connection terminal 2 feet, DGND connections；2 feet and 1 foot of the 3rd ceramic disc capacitor, 1 foot of the 4th ceramic disc capacitor, 1 foot of the first inductance of power supply voltage stabilizing chip Connection；2 feet of the first inductance are connected with 1 foot of the 5th ceramic disc capacitor, as peripheral chip power supply；It is depressured isolated power supply chip 3 feet and 2 feet of the 6th ceramic disc capacitor, 2 feet of the second courage capacitance, 2 feet, 2 feet, the GND of the second inductance of the 7th ceramic disc capacitor Connection；It is depressured 4 feet of isolated power supply chip and 1 foot of the 6th ceramic disc capacitor, 1 foot of the second courage capacitance, the 1 of the 7th ceramic disc capacitor Foot connects, the power supply as CPU；

The isolation circuit includes 4 light-coupled isolation chips, 16 Chip-Rs；First light-coupled isolation chip, the second light Coupling isolating chip, the 3rd light-coupled isolation chip, the 4th light-coupled isolation chip 1 foot respectively with 1 foot of the first Chip-R, the 5th The 1 foot connection of 1 foot of Chip-R, 1 foot of the 9th Chip-R, the 13rd Chip-R, 2 feet, 3 feet are received respectively with RS-232 Send out 9 feet and 30 feet of STM32 processors, 14 feet of STM32 processors and 15 feet, the Ethernet physical interface transceiver of device chip 34 feet of controller chip and 17 feet of STM32 processors, 18 feet and 16 feet of STM32 processors, 4 feet and the second Chip-R 1 foot, 1 foot of the 6th Chip-R, 1 foot of the tenth Chip-R, the 14th Chip-R 1 foot connection, 5 feet, 8 feet difference Be connected with power supply, DGND, 6 feet, 7 feet respectively with 10 feet of RS-232 transponder chips and and the 4th Chip-R 1 1 foot of foot and the 3rd Chip-R, 33 foot of Ethernet physical interface Transceiver Controller chip and 32 feet and the 8th patch electricity 1 foot and 1 foot of the 7th Chip-R, 16 feet of the STM32 processors and Ethernet physical interface Transceiver Controller chip of resistance 1 foot and 1 foot of the 11st Chip-R of 35 feet and the 12nd Chip-R, too net physical interface Transceiver Controller chip The 1 foot connection of 1 foot and the 15th Chip-R of 37 feet and 36 feet and the 16th Chip-R；2 feet of the first Chip-R, 2 feet of the 4th Chip-R are connected with power supply；2 feet of the second Chip-R, 2 feet of the 3rd Chip-R, the 5th patch 2 feet of resistance, 2 feet of the 6th Chip-R, 2 feet, 2 feet, the 13rd patch of the 11st Chip-R of the tenth Chip-R 2 feet, 2 feet of the 14th Chip-R of resistance are connected with CPU power supplies；2 feet, the 8th Chip-R of 7th Chip-R 2 feet, 2 feet of the 9th Chip-R, 2 feet of the 12nd Chip-R, 2 feet of the 15th Chip-R, the 16th patch electricity 2 feet of resistance and the power supply of peripheral chip connect；

The JTAG debugging circuit includes a 20 pin cattle horn sockets, seven Chip-Rs；20 pin ox horns are inserted 1 foot of seat is connected with 2 feet, the CPU power supplies of 20 pin cattle horn sockets；4 feet of 20 pin cattle horn sockets, 6 feet, 8 feet, 10 feet, 12 feet, 14 feet, 16 feet, 18 feet, 20 feet are connected with 2 foot of the 4th Chip-R, 2 foot of the 5th Chip-R, GND；20 draw 3 feet of foot cattle horn socket are connected with 40 feet of 1 foot of the first Chip-R, STM32 processors；5 feet of 20 pin cattle horn sockets It is connected with 1 foot of the second Chip-R, 38 feet of STM32 processors；7 feet and the 3rd Chip-R of 20 pin cattle horn sockets 1 foot, STM32 processors 34 feet connection；At 9 feet of 20 pin cattle horn sockets and 1 foot of the 4th Chip-R, STM32 Manage the 37 feet connection of device；11 feet of 20 pin cattle horn sockets connect with 1 foot of the 5th Chip-R, 1 foot of the 6th Chip-R It connects；13 feet of 20 pin cattle horn sockets are connected with 1 foot of the 7th Chip-R, 39 feet of STM32 processors；20 pin oxen 15 feet of corner socket are connected with 7 feet of STM32 processors；

The serial communication circuit includes RS-232 transponder chips, RS-232 serial communications interface and four tile electricity Hold；7 feet of RS-232 transponder chips are connected with the output terminal of RS-232 serial communication interfaces；The 8 of RS-232 transponder chips Foot is connected with the input terminal of RS-232 serial communication interfaces；1 foot and 3 feet of RS-232 transponder chips are electric with the first tile respectively Hold both ends connection, 4 feet and 5 feet be connecteds respectively with the second ceramic disc capacitor both ends, 1 foot of the 3rd ceramic disc capacitor of 6 feet connects, 2 feet and the Four ceramic disc capacitors, 1 foot connects；15 feet of RS-232 transponder chips are connected with 2 foot of the 3rd ceramic disc capacitor, DGND；RS-232 is received and dispatched 16 feet of device chip are connected with 3 feet of 2 foot of the 4th ceramic disc capacitor, power supply voltage stabilizing chip；

The ethernet communication control circuit includes Ethernet physical interface Transceiver Controller chip, RJ45 interfaces, crystalline substance It shakes, 11 ceramic disc capacitors, 24 Chip-Rs；1 foot of the first Chip-R and 1 foot of the second Chip-R, the 3rd 1 foot of Chip-R, 1 foot of the 4th Chip-R, 1 foot, 1 foot, the 9th patch of the 7th Chip-R of the 5th Chip-R 1 foot of resistance, 1 foot of the 11st Chip-R, 1 foot of the 15th Chip-R, 1 foot of the first ceramic disc capacitor, the second tile 1 foot of capacitance, 1 foot of the 3rd ceramic disc capacitor, 1 foot of the 4th ceramic disc capacitor, 1 foot of the 17th Chip-R, the 5th tile electricity Hold 1 foot, 1 foot of the 6th ceramic disc capacitor, 1 foot of the 7th ceramic disc capacitor, 1 foot of the 8th ceramic disc capacitor, the 1 of the tenth ceramic disc capacitor Foot, DGND connections；1 foot of the 6th Chip-R and 1 foot of the 8th Chip-R, 1 foot, the 12nd patch of the tenth Chip-R 1 foot of resistance, 1 foot of the 13rd Chip-R, 1 foot of the 14th Chip-R, 2 feet of the 7th ceramic disc capacitor, the 18th patch The power supply connection of 1 foot of sheet resistance, 1 foot of the 19th Chip-R, 1 foot of the 20th Chip-R, peripheral chip；With Too 1 foot of net physical interface Transceiver Controller chip is connected with 2 feet of RJ45 interfaces, 2 feet of the 19th Chip-R, 2 feet Be connected with 1 foot of RJ45 interfaces, 2 feet of the 18th Chip-R, 3 feet, 9 feet, 14 feet, 16 feet, 19 feet, 29 feet, 48 feet with DGND connections, 4 feet, 11 feet, 15 feet, 21 feet, the power supply of 28 feet and peripheral chip connect, and 5 feet are electric with the 22nd patch 1 foot of resistance, the connection of 1 foot of the 11st ceramic disc capacitor, 6 feet connect with 1 foot of the 9th ceramic disc capacitor, 1 foot of the 21st Chip-R It connects, 8 feet are connected with 2 feet of the first ceramic disc capacitor, the power supply of peripheral chip, and 2 feet of 10 feet and the 15th Chip-R connect It connects, 17 feet are connected with 2 feet of the second ceramic disc capacitor, the power supply of peripheral chip, and 2 feet of 20 feet and the 3rd ceramic disc capacitor connect It connects, 22 feet are connected with 2 feet of the 4th ceramic disc capacitor, and 23 feet are connected with 2 feet of the 17th Chip-R, 25 feet and RJ45 interfaces 11 feet connect, and 27 feet are connected with 10 feet of RJ45 interfaces, 30 feet and 1 foot of crystal oscillator, 1 foot of the 16th Chip-R, the 6th porcelain The 2 feet connection of chip capacitor, 31 feet and 2 feet of crystal oscillator, 2 feet of the 16th Chip-R, 2 feet of the 5th ceramic disc capacitor connect, and 32 Foot is connected with 2 feet of the 14th Chip-R, and 36 feet are connected with 2 feet of the 13rd Chip-R, 37 feet and the 6th Chip-R Connection, 38 feet, 39 feet, 40 feet, 41 feet, 42 feet paste respectively with 2 feet of the 5th Chip-R, 2 feet of the 4th Chip-R, the 3rd The 2 of the 2 feet connection of 2 feet of sheet resistance, 2 feet of the second Chip-R, the first Chip-R, 43 feet and the 11st Chip-R The 2 feet connection of foot, the 12nd Chip-R, 44 feet are connected with 2 feet of the 9th Chip-R, 2 feet of the tenth Chip-R, 45 feet It is connected with 2 feet of the 7th Chip-R, 2 feet of the 8th Chip-R；3 feet of RJ45 interfaces and 2 feet of the 9th ceramic disc capacitor connect It connects, 6 feet are connected with 2 feet of the 11st ceramic disc capacitor, and 9 feet are connected with 2 feet of the 20th Chip-R, 12 feet and the 24th patch The 2 feet connection of sheet resistance, 13 feet, 14 feet are connected with DGND；

STM32 processors, power supply voltage stabilizing chip in the utility model, decompression isolated power supply chip, light-coupled isolation chip, RS-232 transponder chips, RJ45 interfaces are ripe finished product.Wherein STM32 processors are ST companies STM32F103C8T6 models processor, the AMS1117- that power supply voltage stabilizing chip is AdvancedMonolithicSystems companies 3.3rd, be depressured isolated power supply chip be the B0503S-1W of MORNSUN companies, the HCPL- that light-coupled isolation chip is Avago companies 2630 models, RS-232 transponder chips use the MAX3232 models of Maxim companies, ethernet communication control chip for The network transformer of the W5500 models of WIZNET companies, the HR911105A models that RJ45 interfaces are HANRUN companies.

The utility model can send mass data to Ethernet by serial ports, support that serial port baud rate is adjustable, ensure number According to integrality and reliability.It can cross and be embedded by the IE browser that PC is carried by being simply input device name opening Webpage in STM32 processors by the IP address and serial port baud rate of homepage modification system, and supports power down, resets and protect Deposit setting and button factory reset function.Serial ports can be sent data to by Ethernet simultaneously, and ensure that data Reliability and stability.The system realizes the transparent transmission of Ethernet and serial data.So it can realize serial data Pass through the function of Ethernet teletransmission.It supports simultaneously under TCP_Server, TCP_Client, UDP, UDP_Server pattern Data transmission.

The utility model letter that we no longer need input complicated in remote control equipment by NETBIOS agreements Breath, it is only necessary to which control can be realized by inputting the device name that we set.The light-coupled isolation technology used on circuit, it is real Show the accurate of the data transmission that equipment is run and kept in complicated industrial environment and stablize, greatly reduce in data transmission The problems such as data transmission run into is unstable, the error in data of transmission.

Description of the drawings

Fig. 1 is the structure principle chart of the utility model；

Fig. 2 is STM32 singlechip minimum system circuits in Fig. 1

Fig. 3 is the circuit diagram of power circuit in Fig. 1；

Fig. 4 is isolation circuit in Fig. 1；

Fig. 5 is JTAG debugging circuit in Fig. 1；

Fig. 6 is serial communication circuit in Fig. 1；

Fig. 7 is ethernet communication control circuit in Fig. 1；

Fig. 8 is the software flow pattern of the present invention.

Specific embodiment

Serial ports as shown in Figure 1 based on STM32 microcontrollers includes STM32 single-chip minimum systems with Ethernet conversion equipment Circuit, power circuit, isolation circuit, JTAG debugging circuit, serial communication circuit, ethernet communication control circuit.

As shown in Fig. 2, STM32 singlechip minimum system circuits include a STM32 processors IC1, two pole of voltage stabilizing Pipe, two crystal oscillators, four Chip-Rs, 12 ceramic disc capacitors；1 foot of STM32 processors IC1 and second Chip-R R2 The connection of 1 foot, the both ends of 3 feet, 4 feet respectively with the first crystal oscillator Y1 be connecteds, 5 feet, 6 feet respectively with the both ends of the second crystal oscillator Y2 company It connects, 7 feet are connected with 1 foot of 1 foot of zener diode D1,1 foot of the first Chip-R R1, the 5th ceramic disc capacitor C5,8 feet and 1 foot of the 1 foot connection of 1 foot, the 12nd ceramic disc capacitor C12 of 11 ceramic disc capacitor C11,9 feet and the 4th Chip-R R4, the tenth The 2 feet connections of 2 feet of one ceramic disc capacitor C11, the 12nd ceramic disc capacitor C12,23 feet, 35 feet, 47 feet, the first ceramic disc capacitor C1 1 foot, 1 foot of the second ceramic disc capacitor C2,1 foot of the 3rd ceramic disc capacitor C3,1 foot, the 5th ceramic disc capacitor of the 4th ceramic disc capacitor C4 2 feet of C5,1 foot of the 6th ceramic disc capacitor C6,1 foot, 1 foot, the 9th tile of the 8th ceramic disc capacitor C8 of the 7th ceramic disc capacitor C7 1 foot of capacitance C9,1 foot of the tenth ceramic disc capacitor C10,1 foot of the 3rd Chip-R R3 are connected with GND, 24 feet, 36 feet, 48 feet, 2 feet of first zener diode D1,2 feet of the first Chip-R R1,2 feet of the second Chip-R R2, the 4th Chip-R R4 2 feet, 2 feet of the 6th ceramic disc capacitor C6,2 feet of the 7th ceramic disc capacitor C7,2 feet of the 8th ceramic disc capacitor C8, the 9th tile electricity 2 feet, 2 feet of the tenth ceramic disc capacitor C10 for holding C9 are connected with CPU power supplies, and 2 feet of 44 feet and the 3rd Chip-R R3 connect It connects；2 feet of 1 foot, 2 feet of first crystal oscillator Y1 respectively with 2 feet of the first ceramic disc capacitor C1, the second ceramic disc capacitor C2 are connected；Second 2 feet of 1 foot, 2 feet of crystal oscillator Y2 respectively with 2 feet of the 3rd ceramic disc capacitor C3, the 4th ceramic disc capacitor C4 are connected；

As shown in figure 3, power circuit includes a double-legged ox horn contact pin wire connection terminal J1, a decompression isolated power supply chip IC3, a power supply voltage stabilizing chip IC2, a 400mA resettable fuses F1, a current limliting Chip-R R5, one shine two Pole pipe LED, 2 inductance, two courage capacitances, 7 ceramic disc capacitors；1 foot of double-legged ox horn contact pin wire connection terminal J1 and 400mA are from extensive The 1 foot connection of double insurance silk F1；2 feet of 400mA resettable fuses F1 and 1 foot of current limliting Chip-R R5, the first courage capacitance 1 foot of C20,1 foot of the first ceramic disc capacitor C13,1 foot of the second ceramic disc capacitor C14, decompression isolated power supply chip IC 31 foot, The 3 feet connection of power supply voltage stabilizing chip IC2；2 feet of current limliting Chip-R R5 and 1 foot of Light-emitting diode LED connect；Light-emitting diodes 2 feet of 2 feet of pipe LED and the first courage capacitance C20,2 feet of the first ceramic disc capacitor C13,2 feet of the second ceramic disc capacitor C14, decompression 2 feet of isolated power supply chip IC 3,1 foot of power supply voltage stabilizing chip IC2,2 feet, the 4th ceramic disc capacitor of the 3rd ceramic disc capacitor C15 2 feet of C16,2 feet of the 5th ceramic disc capacitor C17,1 foot of the second inductance L2, double-legged ox horn contact pin wire connection terminal J1 2 feet, DGND connections；2 feet of power supply voltage stabilizing chip IC2 and 1 foot of the 3rd ceramic disc capacitor C15,1 foot of the 4th ceramic disc capacitor C16, first The 1 foot connection of inductance L1；2 feet of first inductance L1 are connected with 1 foot of the 5th ceramic disc capacitor C17D, are powered as peripheral chip electric Source；It is depressured 3 feet of isolated power supply chip IC 3 and 2 feet, 2 feet, the 7th tile of the second courage capacitance C21 of the 6th ceramic disc capacitor C18 2 feet of capacitance C19,2 feet of the second inductance L2, GND connections；It is depressured 4 feet and the 6th ceramic disc capacitor of isolated power supply chip IC 3 The 1 foot connection of 1 foot of C18,1 foot of the second courage capacitance C21, the 7th ceramic disc capacitor C19, the power supply as CPU；

As shown in figure 4, isolation circuit includes 4 light-coupled isolation chips, 16 Chip-Rs；First light-coupled isolation chip IC4, the second light-coupled isolation chip IC5, the 3rd light-coupled isolation chip IC6,1 foot of the 4th light-coupled isolation chip IC7 are respectively with 1 foot of one Chip-R R6,1 foot of the 5th Chip-R R10,1 foot, the 13rd Chip-R R18 of the 9th Chip-R R14 1 foot connection, 2 feet, 3 feet respectively at 30 feet of 9 feet of RS-232 transponder chips IC8 and STM32 processors IC1, STM32 Manage 14 feet and 15 feet of device IC1,34 feet of Ethernet physical interface Transceiver Controller chip IC 9 and STM32 processors IC1 1 foot of 18 feet and 16 feet of 17 feet, STM32 processors IC1,4 feet and the second Chip-R R7, the 1 of the 6th Chip-R R11 Foot, 1 foot of the tenth Chip-R R15, the 14th Chip-R R19 1 foot connection, 5 feet, 8 feet respectively with power supply, DGND Connection, 6 feet, 7 feet respectively with 10 feet of RS-232 transponder chips IC8 and and the 4th Chip-R R9 1 foot and the 3rd patch 1 foot of sheet resistance R8,33 feet of Ethernet physical interface Transceiver Controller chip IC 9 and 32 feet and the 8th Chip-R 1 foot of R13 and 1 foot of the 7th Chip-R R12,16 feet of STM32 processors IC1 and Ethernet physical interface transceiver control 35 feet and 1 foot of the 12nd Chip-R R17 and 1 foot, the too net physics of the 11st Chip-R R16 of device chip IC 9 connect 37 feet of mouth Transceiver Controller chip IC 9 and 1 foot and the 15th Chip-R of 36 feet and the 16th Chip-R R21 The 1 foot connection of R20；2 feet, 2 feet of the 4th Chip-R R9 of first Chip-R R6 are connected with power supply；Second patch electricity Hinder 2 feet of R7,2 feet of the 3rd Chip-R R8,2 feet of the 5th Chip-R R10,2 feet of the 6th Chip-R R11, the tenth 2 feet of Chip-R R15,2 feet of the 11st Chip-R R16,2 feet, the 14th Chip-R of the 13rd Chip-R R18 2 feet of R19 are connected with CPU power supplies；2 feet of 7th Chip-R R12,2 feet, the 9th patch of the 8th Chip-R R13 2 feet of resistance R14,2 feet of the 12nd Chip-R R17,2 feet, the 16th Chip-R R21 of the 15th Chip-R R20 2 feet and peripheral chip power supply connect；

As shown in figure 5, JTAG debugging circuit includes 20 pin cattle horn socket J2, seven Chip-Rs；20 draw 1 foot of foot cattle horn socket J2 is connected with 2 feet, the CPU power supplies of 20 pin cattle horn socket J2；20 pin cattle horn socket J2 4 feet, 6 feet, 8 feet, 10 feet, 12 feet, 14 feet, 16 feet, 18 feet, 2 feet of 20 feet and the 4th Chip-R R25, the 5th patch electricity Hinder 2 feet, the GND connections of R26；3 feet of 20 pin cattle horn socket J2 and 1 foot, the STM32 processors of the first Chip-R R22 The 40 feet connection of IC1；5 feet of 20 pin cattle horn socket J2 and 1 foot of the second Chip-R R23, STM32 processors IC1 38 feet connect；7 feet of 20 pin cattle horn socket J2 connect with 1 foot of the 3rd Chip-R R24,34 feet of STM32 processors IC1 It connects；9 feet of 20 pin cattle horn socket J2 are connected with 1 foot of the 4th Chip-R R25,37 feet of STM32 processors IC1；Two 11 feet of ten pin cattle horn socket J2 are connected with 1 foot of the 5th Chip-R R26,1 foot of the 6th Chip-R R27；20 draw 13 feet of foot cattle horn socket J2 are connected with 39 feet of 1 foot of the 7th Chip-R R28, STM32 processors IC1；20 pin oxen 15 feet of corner socket J2 are connected with 7 feet of STM32 processors IC1；

As shown in fig. 6, serial communication circuit include RS-232 transponder chip IC8, RS-232 serial communication interface J3 and Four ceramic disc capacitors；7 feet of RS-232 transponder chips IC8 are connected with the output terminal of RS-232 serial communication interfaces J3；RS- 8 feet of 232 transponder chip IC8 are connected with the input terminal of RS-232 serial communication interfaces J3；RS-232 transponder chips IC8's 1 foot and 3 feet are connected respectively with the first ceramic disc capacitor C22 both ends, 4 feet and 5 feet are connected respectively with the second ceramic disc capacitor C23 both ends, 6 The 1 foot connection of the 3rd ceramic disc capacitor C24 of foot, 2 feet are connected with 1 foot of the 4th ceramic disc capacitor C25；RS-232 transponder chips IC8 15 feet be connected with 2 feet, the DGND of the 3rd ceramic disc capacitor C24；16 feet and the 4th ceramic disc capacitor of RS-232 transponder chips IC8 The 3 feet connection of 2 feet, power supply voltage stabilizing chip IC2 of C25；

As shown in fig. 7, ethernet communication control circuit include Ethernet physical interface Transceiver Controller chip IC 9, RJ45 interfaces J4, crystal oscillator, 11 ceramic disc capacitors, 24 Chip-Rs；1 foot of first Chip-R R29 and the second patch 1 foot of sheet resistance R30,1 foot of the 3rd Chip-R R31,1 foot of the 4th Chip-R R32, the 1 of the 5th Chip-R R33 Foot, 1 foot of the 7th Chip-R R35,1 foot of the 9th Chip-R R37,1 foot of the 11st Chip-R R39, the 15th patch 1 foot of sheet resistance R43,1 foot of the first ceramic disc capacitor C125,1 foot of the second ceramic disc capacitor C26, the 1 of the 3rd ceramic disc capacitor C27 Foot, 1 foot of the 4th ceramic disc capacitor C28,1 foot of the 17th Chip-R R45,1 foot, the 6th tile of the 5th ceramic disc capacitor C29 1 foot of capacitance C30,1 foot of the 7th ceramic disc capacitor C31,1 foot of the 8th ceramic disc capacitor C32, the tenth ceramic disc capacitor C34 1 foot, DGND connections；1 foot of 6th Chip-R R34 and 1 foot of the 8th Chip-R R36,1 foot of the tenth Chip-R R38, the tenth 1 foot of two Chip-R R40,1 foot of the 13rd Chip-R R41,1 foot, the 7th ceramic disc capacitor of the 14th Chip-R R42 2 feet of C31,1 foot of the 18th Chip-R R46,1 foot of the 19th Chip-R R47, the 1 of the 20th Chip-R R48 The power supply connection of foot, peripheral chip；1 foot of Ethernet physical interface Transceiver Controller chip IC 9 and RJ45 interfaces J4 2 feet, the 19th Chip-R R47 the connection of 2 feet, 1 foot, 2 feet of the 18th Chip-R R46 of 2 feet and RJ45 interfaces J4 Connection, 3 feet, 9 feet, 14 feet, 16 feet, 19 feet, 29 feet, 48 feet are connected with DGND, 4 feet, 11 feet, 15 feet, 21 feet, 28 feet and periphery The power supply connection of chip, 5 feet are connected with 1 foot of the 22nd Chip-R R50,1 foot of the 11st ceramic disc capacitor C35, and 6 Foot is connected with 1 foot of the 9th ceramic disc capacitor C33,1 foot of the 21st Chip-R R49,8 feet and the first ceramic disc capacitor C125's The power supply connection of 2 feet, peripheral chip, 10 feet are connected with 2 feet of the 15th Chip-R R43,17 feet and the second tile electricity Hold the power supply connection of 2 feet, peripheral chip of C26,20 feet are connected with 2 feet of the 3rd ceramic disc capacitor C27,22 feet and the 4th porcelain The 2 feet connection of chip capacitor C28,23 feet are connected with 2 feet of the 17th Chip-R R45, and 11 feet of 25 feet and RJ45 interfaces J4 connect It connects, 27 feet are connected with 10 feet of RJ45 interfaces J4,30 feet and 1 foot of crystal oscillator X1,1 foot of the 16th Chip-R R44, the 6th porcelain The 2 feet connection of chip capacitor C30,31 feet and 2 feet of crystal oscillator X1,2 feet of the 16th Chip-R R44, the 5th ceramic disc capacitor C29 2 feet connect, and 32 feet are connected with 2 feet of the 14th Chip-R R42, and 36 feet are connected with 2 feet of the 13rd Chip-R R41, and 37 Foot is connected with the 6th Chip-R R34,38 feet, 39 feet, 40 feet, 41 feet, 42 feet respectively with 2 feet of the 5th Chip-R R33, 2 feet of four Chip-R R32,2 feet of the 3rd Chip-R R31,2 feet of the second Chip-R R30, the first Chip-R R29 The connection of 2 feet, 43 feet are connected with 2 feet of the 11st Chip-R R39,2 feet of the 12nd Chip-R R40,44 feet and the 9th 2 feet, the 8th patch of the 2 feet connection of 2 feet, the tenth Chip-R R38 of Chip-R R37,45 feet and the 7th Chip-R R35 The 2 feet connection of resistance R36；3 feet of RJ45 interfaces J4 are connected with 2 feet of the 9th ceramic disc capacitor C33,6 feet and the 11st tile electricity Hold the 2 feet connection of C35,9 feet are connected with 2 feet of the 20th Chip-R R51,2 feet of 12 feet and the 24th Chip-R R52 Connection, 13 feet, 14 feet are connected with DGND；

STM32 processors are the STM32F103C8T6 models processor of ST companies, power supply voltage stabilizing chip is AMS1117-3.3, the decompression isolated power supply chip of AdvancedMonolithicSystems companies are MORNSUN companies B0503S-1W, light-coupled isolation chip are the HCPL-2630 models of Avago companies, RS-232 transponder chips using Maxim public affairs It is HANRUN public affairs that the MAX3232 models of department, ethernet communication, which control the W5500 models that chip is WIZNET companies, RJ45 interfaces, The network transformer of the HR911105A models of department.

The software flow of the device, should as shown in figure 8, program carries out initial configuration to system first after bringing into operation Configuration is mainly including the reset of house dog, FLASH configurations, the configuration of serial ports, the configuration of RTC real-time clocks, ethernet module Configuration and the initialization of ICP/IP protocol stack.Configuration enters listening port state after completing, if the TCP port number listened to Then it is web page access pattern for 5000, system passes through Ethernet and sends web data to PC machine terminal at this time.It must in PC machine completion Setting is stored in FLASH by MCU processors after the modification wanted, and reinitializes the IP address being set and serial ports ripple Special rate.If the TCP port number listened to is the port (the specific serve port of non-5000 grade) of setting, transparent transmission mould is entered Formula, device are connected to ethernet server according to the Target IP and target port and TCP or UDP transmission modes of configuration parameter, Start the transparent transmission of data after successful connection.So far the transparent transmission that serial ports turns Ethernet is completed.

Software has used jtag interface in debugging process." XCOMV1.4 " is used to pass through PC machine in RS-232 serial datas source Serial data is sent to system.RJ45 interfaces are attached to by parallel wires on router, and the analysis of TCP data uses " TCP＆UDP testing tools ".The WebServer that the system integration is logged in by other PC hosts in same LAN can Necessary modification is carried out with the IP address to the system and serial port baud rate.Then sent out by different hosts from " XCOMV1.4 " Data can completely be received completely by sending the other host " TCP＆UDP testing tools " of data, while from different hosts " TCP＆UDP testing tools " sends any data and can be received completely by " XCOMV1.4 " of an other host Data.It has been fully achieved through test function repeatedly and system the operation is stable.

The major parameter of each built-up circuit of the device is as follows：

Serial port baud rate can be set from 300bps to 256000bps；

TCP_Server, TCP_Client, UDP, UDP_Server operating modes may be selected in operating mode；

Operating mode relevant parameter can be configured by serial ports or network；

Heartbeat machine contracting system is set, ensures that connection is true and reliable, prevents to connect seemingly-dead；

Transistor-Transistor Logic level is compatible with 3.3V and 5.0V；

STM32 processors：DC3.3V；

Network module：Adaptive 10M/100Mbps network speeds.

Claims (1)

1. a kind of serial ports based on STM32 microcontrollers and Ethernet conversion equipment, including STM32 singlechip minimum system circuits and Power circuit connected to it, isolation circuit, JTAG debugging circuit, serial communication circuit, ethernet communication control circuit, it is special Sign is：

The STM32 singlechip minimum system circuits include a STM32 processor, a zener diode, two crystal oscillators, Four Chip-Rs, 12 ceramic disc capacitors；1 foot of STM32 processors is connected with 1 foot of second Chip-R, 3 feet, 4 feet The both ends with the first crystal oscillator are connected respectively, and the both ends of 5 feet, 6 feet respectively with the second crystal oscillator are connected, and the 1 of 7 feet and zener diode 1 foot, the 12nd porcelain of the 1 foot connection of foot, 1 foot of the first Chip-R, the 5th ceramic disc capacitor, 8 feet and the 11st ceramic disc capacitor 1 foot of the 1 foot connection of chip capacitor, 9 feet and the 4th Chip-R, 2 feet of the 11st ceramic disc capacitor, the 2 of the 12nd ceramic disc capacitor Foot connect, 23 feet, 35 feet, 47 feet, 1 foot of the first ceramic disc capacitor, 1 foot of the second ceramic disc capacitor, the 3rd ceramic disc capacitor 1 foot, 1 foot of the 4th ceramic disc capacitor, 2 feet of the 5th ceramic disc capacitor, 1 foot of the 6th ceramic disc capacitor, 1 foot of the 7th ceramic disc capacitor, the 8th 1 foot of ceramic disc capacitor, 1 foot of the 9th ceramic disc capacitor, 1 foot, 1 foot of the 3rd Chip-R of the tenth ceramic disc capacitor are connected with GND, 24 feet, 36 feet, 48 feet, 2 feet of the first zener diode, 2 feet of the first Chip-R, 2 feet of the second Chip-R, the 4th patch 2 feet of sheet resistance, 2 feet of the 6th ceramic disc capacitor, 2 feet of the 7th ceramic disc capacitor, 2 feet of the 8th ceramic disc capacitor, the 9th tile electricity 2 feet, 2 feet of the tenth ceramic disc capacitor held are connected with CPU power supplies, and 44 feet are connected with 2 feet of the 3rd Chip-R；First is brilliant 2 feet of 1 foot, 2 feet to shake respectively with 2 feet of the first ceramic disc capacitor, the second ceramic disc capacitor are connected；1 foot, 2 feet point of second crystal oscillator 2 feet not with 2 feet of the 3rd ceramic disc capacitor, the 4th ceramic disc capacitor are connected；

The power circuit is steady including a double-legged ox horn contact pin wire connection terminal, decompression isolated power supply chip, a power supply Press chip, a 400mA resettable fuse, a current limliting Chip-R, a light emitting diode, 2 inductance, two courage electricity Hold, 7 ceramic disc capacitors；1 foot of double-legged ox horn contact pin wire connection terminal is connected with 1 foot of 400mA resettable fuses；400mA is certainly Recover 2 feet of fuse and 1 foot of current limliting Chip-R, 1 foot of the first courage capacitance, 1 foot, the second tile of the first ceramic disc capacitor The 3 feet connection of 1 foot of capacitance, 1 foot for being depressured isolated power supply chip, power supply voltage stabilizing chip；2 feet of current limliting Chip-R are with shining The 1 foot connection of diode；2 feet of 2 feet of light emitting diode and the first courage capacitance, 2 feet of the first ceramic disc capacitor, the second tile electricity 2 feet held, 2 feet, 1 foot of power supply voltage stabilizing chip, 2 feet of the 3rd ceramic disc capacitor, the 4th tile electricity that are depressured isolated power supply chip 2 feet of appearance, 2 feet of the 5th ceramic disc capacitor, 1 foot of the second inductance, 2 feet of double-legged ox horn contact pin wire connection terminal, DGND connections；Electricity 2 feet of source voltage stabilizing chip are connected with 1 foot, 1 foot of the 4th ceramic disc capacitor, 1 foot of the first inductance of the 3rd ceramic disc capacitor；First electricity 2 feet of sense are connected with 1 foot of the 5th ceramic disc capacitor, as peripheral chip power supply；It is depressured 3 feet and the 6th of isolated power supply chip 2 feet of ceramic disc capacitor, 2 feet of the second courage capacitance, 2 feet of the 7th ceramic disc capacitor, 2 feet of the second inductance, GND connections；Decompression every 4 feet from power supply chip are connected with 1 foot of 1 foot of the 6th ceramic disc capacitor, 1 foot of the second courage capacitance, the 7th ceramic disc capacitor, as The power supply of CPU；

The isolation circuit includes 4 light-coupled isolation chips, 16 Chip-Rs；First light-coupled isolation chip, the second optocoupler Isolating chip, the 3rd light-coupled isolation chip, 1 foot of the 4th light-coupled isolation chip paste respectively with 1 foot of the first Chip-R, the 5th The 1 foot connection of 1 foot of sheet resistance, 1 foot of the 9th Chip-R, the 13rd Chip-R, 2 feet, 3 feet are received and dispatched respectively with RS-232 9 feet of device chip and 30 feet of STM32 processors, 14 feet of STM32 processors and 15 feet, Ethernet physical interface transceiver control 34 feet of device chip processed and 17 feet of STM32 processors, 18 feet and 16 feet of STM32 processors, 4 feet and the second Chip-R 1 foot, 1 foot of the 6th Chip-R, 1 foot of the tenth Chip-R, the 14th Chip-R 1 foot connection, 5 feet, 8 feet respectively with Power supply, DGND connections, 6 feet, 7 feet respectively with 10 feet of RS-232 transponder chips and and the 4th Chip-R 1 foot 1 foot, 33 foot of Ethernet physical interface Transceiver Controller chip and 32 feet and the 8th Chip-R with the 3rd Chip-R 1 foot and 1 foot of the 7th Chip-R, 16 feet of STM32 processors and Ethernet physical interface Transceiver Controller chip 35 1 foot and 1 foot of the 11st Chip-R of foot and the 12nd Chip-R, too net physical interface Transceiver Controller chip 37 The 1 foot connection of 1 foot and the 15th Chip-R of foot and 36 feet and the 16th Chip-R；2 feet of the first Chip-R, 2 feet of four Chip-Rs are connected with power supply；2 feet of the second Chip-R, 2 feet of the 3rd Chip-R, the 5th patch electricity 2 feet of resistance, 2 feet of the 6th Chip-R, 2 feet of the tenth Chip-R, 2 feet of the 11st Chip-R, the 13rd patch electricity 2 feet, 2 feet of the 14th Chip-R of resistance are connected with CPU power supplies；2 feet of the 7th Chip-R, the 8th Chip-R 2 feet, 2 feet of the 9th Chip-R, 2 feet of the 12nd Chip-R, 2 feet, the 16th Chip-R of the 15th Chip-R 2 feet and peripheral chip power supply connect；

The JTAG debugging circuit includes a 20 pin cattle horn sockets, seven Chip-Rs；20 pin cattle horn sockets 1 foot be connected with 2 feet, the CPU power supplies of 20 pin cattle horn sockets；4 feet of 20 pin cattle horn sockets, 6 feet, 8 feet, 10 Foot, 12 feet, 14 feet, 16 feet, 18 feet, 20 feet are connected with 2 foot of the 4th Chip-R, 2 foot of the 5th Chip-R, GND；20 pins 3 feet of cattle horn socket are connected with 40 feet of 1 foot of the first Chip-R, STM32 processors；5 feet of 20 pin cattle horn sockets with The 38 feet connection of second Chip-R, 1 foot, STM32 processors；1 foot of 7 feet and the 3rd Chip-R of 20 pin cattle horn sockets, The 34 feet connection of STM32 processors；1 foot of 9 feet and the 4th Chip-R of 20 pin cattle horn sockets, the 37 of STM32 processors Foot connects；11 feet of 20 pin cattle horn sockets are connected with 1 foot of the 5th Chip-R, 1 foot of the 6th Chip-R；20 pin oxen 13 feet of corner socket are connected with 39 feet of 1 foot of the 7th Chip-R, STM32 processors；15 feet of 20 pin cattle horn sockets with The 7 feet connection of STM32 processors；

The serial communication circuit includes RS-232 transponder chips, RS-232 serial communications interface and four ceramic disc capacitors； 7 feet of RS-232 transponder chips are connected with the output terminal of RS-232 serial communication interfaces；8 feet of RS-232 transponder chips with The input terminal connection of RS-232 serial communication interfaces；1 foot and 3 feet of RS-232 transponder chips respectively with the first ceramic disc capacitor two End connection, 4 feet and 5 feet be connecteds respectively with the second ceramic disc capacitor both ends, 6 the 3rd ceramic disc capacitor of foot, 1 foot connects, 2 feet and the 4th porcelain 1 foot of chip capacitor connects；15 feet of RS-232 transponder chips are connected with 2 foot of the 3rd ceramic disc capacitor, DGND；RS-232 transceiver cores 16 feet of piece are connected with 3 feet of 2 foot of the 4th ceramic disc capacitor, power supply voltage stabilizing chip；

The ethernet communication control circuit include Ethernet physical interface Transceiver Controller chip, RJ45 interfaces, crystal oscillator, 11 ceramic disc capacitors, 24 Chip-Rs；1 foot of the first Chip-R and 1 foot of the second Chip-R, the 3rd patch 1 foot of resistance, 1 foot of the 4th Chip-R, 1 foot, 1 foot, the 9th Chip-R of the 7th Chip-R of the 5th Chip-R 1 foot, 1 foot, 1 foot of the 15th Chip-R, 1 foot of the first ceramic disc capacitor, the second ceramic disc capacitor of the 11st Chip-R 1 foot, 1 foot of the 3rd ceramic disc capacitor, 1 foot of the 4th ceramic disc capacitor, 1 foot of the 17th Chip-R, the 1 of the 5th ceramic disc capacitor Foot, 1 foot of the 6th ceramic disc capacitor, 1 foot of the 7th ceramic disc capacitor, 1 foot of the 8th ceramic disc capacitor, the tenth ceramic disc capacitor 1 foot, DGND connections；1 foot and 1 foot of the 8th Chip-R, 1 foot of the tenth Chip-R, the 12nd patch electricity of 6th Chip-R 1 foot, 1 foot of the 13rd Chip-R, 1 foot of the 14th Chip-R, 2 feet, the 18th patch of the 7th ceramic disc capacitor of resistance The power supply connection of 1 foot of resistance, 1 foot of the 19th Chip-R, 1 foot of the 20th Chip-R, peripheral chip；Ether 1 foot of net physical interface Transceiver Controller chip is connected with 2 feet of RJ45 interfaces, 2 feet of the 19th Chip-R, 2 feet with The 2 feet connection of 1 foot, the 18th Chip-R of RJ45 interfaces, 3 feet, 9 feet, 14 feet, 16 feet, 19 feet, 29 feet, 48 feet and DGND Connection, 4 feet, 11 feet, 15 feet, 21 feet, the power supply of 28 feet and peripheral chip connect, and the 1 of 5 feet and the 22nd Chip-R Foot, the connection of 1 foot of the 11st ceramic disc capacitor, 6 feet are connected with 1 foot of the 9th ceramic disc capacitor, 1 foot of the 21st Chip-R, 8 feet It is connected with 2 feet of the first ceramic disc capacitor, the power supply of peripheral chip, 10 feet are connected with 2 feet of the 15th Chip-R, 17 feet Be connected with 2 feet of the second ceramic disc capacitor, the power supply of peripheral chip, 20 feet are connected with 2 feet of the 3rd ceramic disc capacitor, 22 feet with The 2 feet connection of 4th ceramic disc capacitor, 23 feet are connected with 2 feet of the 17th Chip-R, and 25 feet are connected with 11 feet of RJ45 interfaces, 27 feet are connected with 10 feet of RJ45 interfaces, 1 foot of 30 feet and crystal oscillator, 1 foot of the 16th Chip-R, the 2 of the 6th ceramic disc capacitor Foot connects, and 31 feet and 2 feet of crystal oscillator, 2 feet of the 16th Chip-R, 2 feet of the 5th ceramic disc capacitor connect, 32 feet and the 14th 2 foot of Chip-R connects, and 36 feet are connected with 2 foot of the 13rd Chip-R, and 37 feet are connected with the 6th Chip-R, 38 feet, 39 feet, 40 feet, 41 feet, 42 feet respectively with 2 feet of the 5th Chip-R, 2 feet of the 4th Chip-R, 2 feet of the 3rd Chip-R, 2 feet, the 12nd patch electricity of the 2 feet connection of 2 feet, the first Chip-R of two Chip-Rs, 43 feet and the 11st Chip-R The 2 feet connection of resistance, 44 feet are connected with 2 feet of the 9th Chip-R, 2 feet of the tenth Chip-R, 45 feet and the 7th Chip-R 2 feet, the 8th Chip-R 2 feet connection；3 feet of RJ45 interfaces are connected with 2 foot of the 9th ceramic disc capacitor, 6 feet and the 11st porcelain The 2 feet connection of chip capacitor, 9 feet are connected with 2 feet of the 20th Chip-R, and 12 feet are connected with 2 feet of the 24th Chip-R, 13 feet, 14 feet are connected with DGND；

The STM32 processors are the STM32F103C8T6 models processor of ST companies, power supply voltage stabilizing chip is Advanced The AMS1117-3.3 of Monolithic Systems companies, decompression isolated power supply chip for MORNSUN companies B0503S-1W, Light-coupled isolation chip is the HCPL-2630 models of Avago companies, RS-232 transponder chips use the MAX3232 of Maxim companies It is HANRUN companies that model, ethernet communication, which control the W5500 models that chip is WIZNET companies, RJ45 interfaces, The network transformer of HR911105A models.