TWI480880B - Online programmer device without power supply for target side, system and method thereof - Google Patents

Description

Online burning device, system and method thereof without power supply to target end

The invention relates to a burning device, a system and a method thereof, in particular to an online burning device, a system and a method thereof, which do not need to supply power to a target end.

In recent years, with the popularization and vigorous development of integrated circuits, various technologies for providing users to self-program programmable controllers have sprung up.

In general, the conventional programming technique is to install a programmable controller on a specific burning device for programming, and then set the programmable controller to be programmed on the target circuit board. However, in many cases, such as when the programmable controller soldered on the target circuit board is reprogrammed, the programmable controller is detached and installed in a specific burning device because of the inconvenience, so it is inconvenient to burn. problem.

In view of this, some manufacturers have proposed In-System Programming (In-Circuit Programming), which directly burns the programmable controller on the target circuit board through electrical connection. However, in this way, the programming device is usually required to supply power to the programmable controller of the target circuit board. When the power requirement of the target circuit board is high and cannot be satisfied by the programming device, the programming failure will be caused. In addition, the signal transmission distance between the programming device and the target circuit board is limited by the physical characteristics of the electrical signal transmission. Therefore, the programming device cannot be far away from the target circuit board, so the above method cannot effectively solve the inconvenience of online programming. The problem.

In summary, it can be seen that the prior art has long been inconvenient in online burning, so it is necessary to propose improved technical means to solve this problem.

In view of the problems of the prior art, the present invention discloses a non-target end Powered online burning device, system and method therefor.

The online burning device with no target end power supply disclosed in the present invention is applied to a target end having a power supply and a programmable controller, and the device comprises: a device power supply, a control unit and an optocoupler unit. Wherein, the device power supply provides the power required by the programming device; the control unit is configured to receive and compile the logic program to generate the programming signal; one end of the optocoupler unit is electrically connected to the control unit and the device power source, and the other end of the optocoupler unit is electrically A programmable power supply is connected to the programmable controller and the target end for converting the programming signal to the programmable controller via the optocoupler unit for online programming.

In addition, the present invention discloses an online burning system without a target end, and the system comprises: a target end, a burning device and a transmission line. The target end has a power supply and a programmable controller; the programming device includes a device power supply and a control unit, the device power supply is used to provide power required for the programming device, and the control unit is configured to receive and compile the logic program. And generating a programming signal; and the transmission line is configured to simultaneously connect the target end and the programming device, the transmission line is embedded with the optocoupler unit for receiving the programming signal, and the programming signal is converted to the programmable controller for online programming.

As for the online burning method for the non-target-side power supply of the present invention, the steps include: providing a power supply and a programmable controller at the target end; providing a device power supply in the programming device; and receiving and compiling the logic by the programming device The program generates a programming signal; the programming device transmits the programming signal to the optocoupler unit, causing the optocoupler unit to convert the programming signal to the programmable controller for online programming.

The apparatus, system and method disclosed in the present invention are as above, and the difference from the prior art is that the present invention supplies power to the programmable controller through the target end, the programming device does not need to supply power to the target end, and the optical coupling unit electrically isolates each other. Connected target end and programming device, so that the programming signal generated by the programming device is converted to programmable by the optocoupler unit The controller is used for online programming.

Through the above technical means, the present invention can achieve the technical effect of improving the convenience of online burning.

The embodiments of the present invention will be described in detail below with reference to the drawings and embodiments, so that the application of the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.

Before describing the online programming device, system and method for power supply without the target end of the present invention, the nouns defined by the present invention are described. The target end of the present invention has a power supply and programmable control. The device is used for online programming of the programming device. The so-called online programming means that the programmable controller can be erased and written directly without removing the programmable controller and placing it in the programming device. operating. The logic program refers to a program that the user wants to set the programmable controller to perform corresponding control, and the programming signal is an electronic signal generated by compiling the logic program. In actual implementation, the compiled programming is performed. The signal is adjusted according to different transmission interfaces and transmission protocols (such as UART, IIC).

The following is a description of the online burning device, the system and the method for the power supply of the present invention without reference to the drawings. Please refer to "FIG. 1", and "FIG. 1" is an online burning without power supply to the target end. The device block diagram of the device is applied to a target end 100 having a power supply 110 and a programmable controller 120. The programming device 200 includes a device power supply 210, a control unit 220, and an optocoupler unit 230. The device power source 210 is used to provide power required for the programming device 200.

The control unit 220 is configured to receive a logic program input by the user, and compile the logic program to generate a corresponding programming signal. Due to logic programming and programming The signal has been described in the above-mentioned self-defined nouns, so no further details are given here.

One end of the optocoupler unit 230 is electrically connected to the control unit 220 and the device power supply 210. The other end of the optocoupler unit 230 is electrically connected to the programmable controller 120 and the power supply 110 for converting the programming signal through the optocoupler unit 230. To the programmable controller 120 for online programming. The optocoupler unit 230 uses light as a medium to transmit an electrical signal, which is mainly composed of a light emitter and a photodetector, and there is no electrical or physical connection (also referred to as physical isolation) between the two, in practical implementation. The photocoupler unit 230 includes a photo transistor, a photo Darlington transistor, a photo TRIAC, or a photo IC. In other words, the optocoupler unit 230 can convert the received electrical signal into an optical signal, and then convert the optical signal into an electrical signal. Since there is no electrical or physical connection, it has signal unidirectionality, excellent electrical insulation properties, and Anti-interference characteristics. In particular, the optocoupler unit 230 may include a signal amplifier for amplifying the output in addition to the optical transmitter and the photodetector, and at least the transmission distance of the programming signal may be more than doubled in signal transmission. In addition, the optocoupler unit 230 may further include a first transmission line and a second transmission line, where the first transmission line and the second transmission line have at least a power line and a signal line, wherein the power line of the first transmission line is electrically connected to the device power source 210; The signal line of a transmission line is electrically connected to the control unit 220; the power line of the second transmission line is electrically connected to the power supply 110 of the target end 100; and the signal line of the second transmission line is electrically connected to the programmable controller 120.

Please refer to FIG. 2, which is a system block diagram of an online burning system without power supply to the target end. The system includes a target end 100, a burning device 200 and a transmission line 300. The target end 100 has a power supply 110 and a programmable controller 120. The power supply 110 is the power source used by the target end 100, and The programmable controller 120 is an element that is connected to an Electrically-Erasable Programmable Read-Only Memory (EEPROM) for electrical operations such as erasing, writing, and the like.

The programming device 200 includes a device power source 210 and a control unit 220. The device power source 210 is a power source required to provide the programming device 200, and the control unit 222 can receive a source code written by the user to control the programmable controller 212 and compile to generate a programming signal.

The transmission line 300 is used for simultaneously connecting the target end 100 and the programming device 200. The transmission line 300 is embedded with the optocoupler unit 301 for receiving a programming signal, and the programming signal is converted to the programmable controller 120 for online programming. The conversion is to first convert the programming signal of the electrical signal into an optical signal, and then convert the optical signal into an electrical signal. The purpose is to electrically isolate the target end 100 from the programming device 200 and extend the signal transmission distance, even at the input end (electric signal to light signal) and the output end (optical signal to electric signal) of the optocoupler unit 301. When power supplies of different levels (such as power supply 110 and device power supply 210), the programming signals before and after conversion can have different levels.

As described above, in actual implementation, the optocoupler unit 310 can be packaged into a photo IC (photo IC), and one end of the optoelectronic integrated circuit for converting an electrical signal into an optical signal will be associated with the programming device 200. The electrical connection is connected, and the end for converting the optical signal into an electrical signal is electrically connected to the target end 100, and the connection manner will be described later in detail with reference to the drawings.

Next, please refer to "Fig. 3", which is a flowchart of a method for programming an online programming method without power supply to the target end, and the steps include: providing a power supply 110 and a programmable controller at the target end 100 120 (step 310); in the burning device 200 Providing a device power supply 210 (step 320); the programming device 200 receives and compiles a logic program to generate a programming signal (step 330); the programming device 200 transmits the programming signal to the optocoupler unit (230, 301) such that The optocoupler unit (230, 301) converts the programming signal to the programmable controller 120 for online programming (step 340). Through the above steps, the programmable controller 120 can be powered by the target terminal 100. The programming device 200 does not need to supply power to the target terminal 100, and the optically coupled units (230, 301) electrically isolate the connected target terminals 100 and burn. The device 200 causes the programming signal generated by the programming device 200 to be converted to the programmable controller 120 via the optocoupler unit (230, 301) for online programming.

In an actual implementation, after step 340, one end of the optocoupler unit (230, 301) is electrically connected to the device power supply 210, and the other end of the optocoupler unit (230, 301) is electrically connected to the supply power source 110. The pre-conversion programming signal has a different level than the converted programming signal (step 350). In other words, the level of the programmed signal converted by the optocoupler unit (230, 301) is the same as the level of the programmable controller 120, and has only a logic high or low relationship with the programming signal before the conversion.

The following is a description of the following embodiments in conjunction with "4" and "5". Please refer to "4" and "4" for the control unit and optocoupler unit to which the present invention is applied. A schematic diagram of a first embodiment of a programmable controller. As mentioned above, one end of the optocoupler unit 230 is electrically connected to the control unit 220 and the device power supply 210. The other end of the optocoupler unit 230 is electrically connected to the programmable controller 120 and the supply power source 110 of the target end 100 for programming signals. The optocoupler unit 230 is switched to the programmable controller 120 for online programming. In actual implementation, the device power supply 210 and the power supply 110 may be at different levels, and thus converted by the optocoupler unit 230. The previous programming signal and the converted programming signal can have different levels.

Please refer to FIG. 5, which is a schematic diagram of a second embodiment in which a control unit and an optocoupler unit to which the present invention is applied is electrically connected to a programmable controller. As mentioned above, the transmission line 300 is used to connect the target end 100 and the programming device 200. The transmission line 300 is embedded with the optocoupler unit 301 for receiving a programming signal, and converting the programming signal from an electrical signal into an optical signal. The signal is converted into an electrical signal and transmitted to the programmable controller 120 of the target terminal 100, such as an Electrically-Erasable Programmable Read-Only Memory for online programming. Since the programming signal is converted by the optocoupler unit 301, the signal transmission distance is doubled. For example, the signal transmission distance is assumed to be "70 cm", which represents the use of the transmission line not embedded in the optocoupler unit 301 to electrically connect the target end 100. When the device 200 is programmed, the maximum transmission line length can only be "70 cm", and if it exceeds, the programming signal will be attenuated to an unrecognizable extent; when the transmission line 300 in which the optocoupler unit 301 is embedded is used, from the programming device 200 to The optocoupler unit 301 can be "70 cm", and the optocoupler unit 301 to the target end 100 are also "70 cm", so the signal transmission distance is doubled. In actual implementation, the signal transmission distance can be increased by using a signal amplifier (not shown). Since the signal transmission distance is increased by using a signal amplifier, it will not be repeated here.

In summary, it can be seen that the difference between the present invention and the prior art is that the programmable controller 120 is powered by the target terminal 100, the programming device 200 does not need to supply power to the target terminal 100, and is electrically coupled to the optocoupler unit (230, 301). The interconnected target terminal 100 and the programming device 200 are isolated, and the programming signal generated by the programming device 200 is converted to the programmable controller 120 via the optocoupler unit (230, 301) for online programming, thereby using a technical means. Can solve the problems of the prior art, and then achieve the improvement online The technical effect of the convenience of burning.

While the present invention has been described above in the foregoing embodiments, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of patent protection shall be subject to the definition of the scope of the patent application attached to this specification.

100‧‧‧ Target

110‧‧‧Power supply

120‧‧‧programmable controller

200‧‧‧ burning device

210‧‧‧Device power supply

220‧‧‧Control unit

230‧‧‧optical coupling unit

300‧‧‧ transmission line

301‧‧‧optocoupler unit

Step 310‧‧‧ Provide a power supply and a programmable controller at the target end

Step 320‧‧‧ Provide a device power supply in the burning device

Step 330‧‧‧ The programming device receives and compiles a logic program to generate a programming signal

Step 340‧‧‧ The programming device transmits the programming signal to an optocoupler unit, so that the optocoupler unit converts the programming signal to the programmable controller for online programming

Step 350‧‧‧ electrically connecting one end of the optocoupler unit to the power supply of the device, and electrically connecting the other end of the optocoupler unit to the supply power source for the programming signal before conversion and the converted The programming signal has different levels

1 is a block diagram of an apparatus for an online burning device without power supply to a target end according to the present invention.

Figure 2 is a block diagram of the system of the online burning system without power supply to the target end of the present invention.

FIG. 3 is a flow chart of a method for the online burning method without power supply to the target end according to the present invention.

4 is a schematic diagram of a first embodiment in which a control unit and an optocoupler unit of the present invention are electrically connected to a programmable controller.

Figure 5 is a schematic diagram of a second embodiment of a control unit and an optocoupler unit to which the present invention is applied to a programmable controller.

100‧‧‧ Target

110‧‧‧Power supply

120‧‧‧programmable controller

200‧‧‧ burning device

210‧‧‧Device power supply

220‧‧‧Control unit

230‧‧‧optical coupling unit

Claims (10)

An online programming device for powering a target end is applied to a target end having a power supply and a programmable controller, the device comprising: a device power supply for providing power required by the device; and a control unit for Receiving and compiling a logic program to generate a programming signal; and an optocoupler unit, one end of the optocoupler unit is electrically connected to the control unit and the device power supply, and the other end of the optocoupler unit is electrically connected to the programmable control And a supply power of the target end for converting the programming signal to the programmable controller via the optocoupler unit for online programming. The device of claim 1 , wherein the optocoupler unit comprises a first transmission line and a second transmission line, and the first transmission line and the second transmission line at least comprise a power line. And a signal line, wherein the power line of the first transmission line is electrically connected to the power supply of the device, and the signal line of the first transmission line is electrically connected to the control unit, and the power supply line of the second transmission line and the power supply of the target end are electrically connected. Connected, the signal line of the second transmission line is electrically connected to the programmable controller. The in-line programming device for power supply without a target end according to claim 1, wherein the optocoupler unit comprises a photo transistor, a photo Darlington transistor, and a light bidirectional thyristor. (photo TRIAC) or optoelectronic integrated circuit (photo IC). An online burning system without a power supply to a target end, the system comprising: a target end, the target end having a power supply and a programmable controller; and a burning device, the burning device comprising: a device power supply for providing power required by the device; and a control unit for receiving and compiling a logic program to generate a programming signal; and a transmission line for simultaneously connecting the target terminal and the programming device, The transmission line is embedded with an optocoupler unit for receiving the programming signal, and the programming signal is converted to the programmable controller for online programming. The online programming system of claim 4, wherein the programmable controller is connected to an Electrically-Erasable Programmable Read-Only Memory. The online burning system of claim 4, wherein the transmission line electrically isolates the target end and the burning device through the optocoupler unit, the transmission line comprising a signal line and a power line. The online burning system of claim 4, wherein the optocoupler unit comprises a photo transistor, a photo Darlington transistor, a photo TRIAC or a photoelectric Integrated circuit (photo IC). An online burning method without power supply to a target end, the steps comprising: providing a power supply and a programmable controller at a target end; providing a device power supply in the programming device; and receiving and compiling a logic program by the programming device To generate a programming signal; and the programming device transmits the programming signal to an optocoupler unit, causing the optocoupler unit to convert the programming signal to the programmable controller for online programming. The online burning method of claim 8, wherein the method further comprises electrically connecting one end of the optocoupler unit to the power source of the device, and electrically connecting the other end of the optocoupler unit to the power supply of the device. A step of connecting the programming signal before conversion to a different level from the converted programming signal. The online burning method of claim 8, wherein the optocoupler unit electrically isolates the target end and the burning device.