CN109597630B - P2MP software programming device and method with detection function - Google Patents
P2MP software programming device and method with detection function Download PDFInfo
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- CN109597630B CN109597630B CN201910085299.8A CN201910085299A CN109597630B CN 109597630 B CN109597630 B CN 109597630B CN 201910085299 A CN201910085299 A CN 201910085299A CN 109597630 B CN109597630 B CN 109597630B
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- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000872 buffer Substances 0.000 claims abstract description 15
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/61—Installation
- G06F8/63—Image based installation; Cloning; Build to order
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0016—Inter-integrated circuit (I2C)
Abstract
The invention relates to a P2MP software programming device with a detection function and a method thereof, comprising the following steps: the system comprises a host computer, a programming board and a plurality of slaves, wherein the host computer is connected with the programming board through I2C, and the programming board is respectively connected with the slaves through I2C; the programming board comprises: the optical coupler, the TXD serial port, the RXD serial port and the plurality of buffers are used for programming the program of the host computer to the plurality of slaves through the programming board. The invention simplifies the programming board, omits control devices such as a singlechip and the like, does not need programming programs of the programming board, adopts a logic circuit consisting of a simple buffer and an optical coupler, realizes one-to-many faster programming, adopts I2C to detect and lock the slave, and completes the more accurate programming slave with detection, thereby saving resources and reducing cost.
Description
Technical Field
The invention belongs to the technical field of electronics, and particularly relates to a P2MP software programming device and method with a detection function.
Background
The function of the Decoder of the STB (set top box) is more and more powerful, and the Decoder is a high-performance SoC (system on a chip) with high integration, economy and high efficiency. Currently, more and more manufacturers integrate demodulators (demodulators) and DDR (double data rate) into a processor, and recently, a CPU embedded in a FLASH appears, and for this situation, a conventional programming method cannot accurately and quickly program, for example: winGDB debugging, namely JTAG simulation, is used for programming, the programming is slow, the programming is inconvenient, the simulation circuits are additionally added on the main board, the STB serial ports can be updated one by PC, and the efficiency and the low efficiency are caused by the fact that the programming of 4M takes about 10 minutes because the PC serial ports are relatively slow.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a P2MP software programming device with a detection function and a method thereof, the programming device simplifies a programming board, omits control devices such as a singlechip and the like, does not need programming programs of the programming board, adopts a logic circuit consisting of a simple buffer and an optical coupler, realizes programming of programs more quickly one to many, adopts I2C to carry out detection locking of a slave, completes more accurate programming of the slave with detection, saves resources and reduces cost.
In order to solve the technical problems, the invention adopts the following technical scheme:
a P2MP software programming device with a detection function comprises: the system comprises a host computer, a programming board and a plurality of slaves, wherein the host computer is connected with the programming board through I2C, and the programming board is respectively connected with the slaves through I2C and used for controlling and detecting the states of the slaves; the programming board comprises: the optical coupler, TXD serial ports, RXD serial ports and a plurality of buffers, wherein, a plurality of buffers pass through RXD serial ports with the host computer links to each other, every the buffer is connected with a plurality of the optical coupler, every the optical coupler passes through TXD serial ports is connected with the slave machine for write the procedure of host computer to a plurality of slave machines through the board of writing.
Further, the method further comprises the following steps: and the display equipment is respectively connected with the plurality of slaves and is used for prompting the connection state of the slaves.
Furthermore, the host is provided with a P2MP key for entering a programming mode and a programming key for starting programming.
Furthermore, the writing board is also provided with a grounding port which is used for being respectively connected with the grounding ports of the host computer and the slave computer.
Furthermore, the programming board is also provided with a power port which is used for being respectively connected with the power ports of the host computer and the slave computer.
Further, the master and the slave are set top boxes.
Meanwhile, the method for programming the program by using the P2MP software programming device with the detection function comprises the following steps of:
s1: enabling the host to enter a programming mode, and enabling the host to send a synchronous signal through a serial port;
s2: the slaves respectively receive the synchronous signals and synchronize with the master;
s3: the host computer sends I2C data to lock a plurality of slaves, and whether the slaves are connected normally or not is detected;
s4: the host computer divides the program data into a plurality of paths through the programming board and sends the paths to the slave computers which are connected normally, and the program data are programmed into FLASH and OTP.
Further, the method further comprises the step S5: and the slave receives a restarting instruction sent by the host to restart, and the programming is completed.
The beneficial effects of the invention at least comprise: the invention simplifies the programming board, omits control devices such as a singlechip and the like, does not need programming programs of the programming board, only adopts a logic circuit consisting of a simple buffer and an optical coupler to realize one-to-many faster programming, adopts I2C to perform detection locking of the slave, and completes more accurate programming of the slave with detection, thereby saving resources and reducing cost.
Drawings
FIG. 1 is a schematic view of the structure of the device of the present invention.
FIG. 2 is a schematic diagram of a structure of a writing board according to the present invention.
FIG. 3 is a flow chart of the programming method of the present invention.
Detailed Description
In order to enable those skilled in the art to better understand the technical scheme of the present invention, the present invention will be further described in detail with reference to specific embodiments. The following examples are illustrative only and are not to be construed as limiting the invention. The examples are not to be construed as limiting the specific techniques or conditions described in the literature in this field or as per the specifications of the product.
According to an embodiment of the present invention, fig. 1 is a schematic structural diagram of an apparatus of the present invention, and referring to fig. 1, a P2MP software programming apparatus with a detection function according to the present invention mainly includes: the system comprises a host computer, a programming board and a plurality of slaves (slave 1-slave N in the figure), wherein the host computer is connected with the programming board through I2C, and the programming board is respectively connected with the slaves through I2C and used for controlling and detecting the states of the slaves. It is understood that I2C includes: the invention adds response protocol I2C in P2MP transmission to control each slave, and judges whether the programming process is normal or not by SDA, and the slave is connected successfully or not, and the data is transmitted only after the connection is successful.
According to some embodiments of the present invention, the writing apparatus may further include: and the display equipment is respectively connected with the plurality of slaves and is used for prompting the connection state of the slaves.
According to some embodiments of the present invention, the host is further provided with a P2MP key for entering a programming mode and a programming key for starting programming.
According to an embodiment of the present invention, referring to fig. 1, the writing board is further provided with a ground port (GND) for being connected to the ground ports of the master and slave, respectively.
According to an embodiment of the present invention, referring to fig. 1, the writing board is further provided with a power port (the power voltage is 5V) for connecting with the power ports of the master and the slave, respectively.
According to an embodiment of the present invention, in order to more clearly describe the technical solution of the present invention, the present invention sets two buffers, and the optocouplers are set to 16 (optocoupler 1-optocoupler 16 in the figure), that is, 16 slaves, to describe, fig. 2 is a schematic diagram of a programming board structure of this embodiment of the present invention, and referring to fig. 1 and 2, the programming board includes: the two buffers are connected with the TXD serial port of the host through the TXD serial port, each buffer is provided with 8 paths of output ends which are respectively connected with the 16 optical couplers, each optical coupler is connected with the RXD serial port of the slave through the TXD serial port, each route optical coupler isolates 16 paths of data without interference, bidirectional asynchronous communication of data buses of the host and the slave is realized, and a program of the host is programmed to a plurality of slaves through a programming board in a program programming process. It will be appreciated that the present invention is not particularly limited to the specific number of buffers and optocouplers and slaves.
In another aspect of the present invention, a method for programming a program by using the P2MP software programming device with a detection function is provided, and fig. 3 is a flowchart of the programming method of the present invention, and referring to fig. 3, the method mainly includes the following steps:
s1: enabling the host to enter a programming mode, and enabling the host to send a synchronous signal through a serial port;
s2: the slaves respectively receive the synchronous signals and synchronize with the master;
s3: the host computer sends I2C data to lock a plurality of slaves, and whether the slaves are connected normally or not is detected;
s4: the host divides the program data into a plurality of paths through the programming board and sends the paths to the slave computers which are connected normally, and the host writes FLASH and OTP; according to some embodiments of the invention, the OTP setting of the encryption boot is opened for encryption at the time of programming.
According to an embodiment of the present invention, further comprising step S5: and the slave receives a restarting instruction sent by the host to restart, and the programming is completed.
According to some embodiments of the present invention, the host and the slave are devices, such as a set top box, in which a CPU is embedded in a flash, and the specific kind is not limited.
In summary, the invention simplifies the programming board, omits control devices such as a singlechip, and the like, does not need programming programs of the programming board, only needs a logic circuit consisting of a simple buffer and an optical coupler, realizes one-to-many faster programming, adopts I2C to perform detection locking of the slave, completes more accurate programming of the slave with detection, saves resources and reduces cost.
In the present invention, unless explicitly specified and limited otherwise, the terms "connected," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally formed, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
While embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by those of ordinary skill in the art within the scope of the invention, as well as variations in the detailed description and application of the invention, as would be apparent to those of ordinary skill in the art in light of the teachings of this application.
Claims (5)
1. A P2MP software programming device with a detection function comprises: the system comprises a host computer, a programming board and a plurality of slaves, and is characterized in that the host computer is connected with the programming board through I2C, and the programming board is respectively connected with the slaves through I2C and is used for controlling and detecting the states of the slaves;
the programming board comprises: the optical coupler, the TXD serial port, the RXD serial port and the plurality of buffers, wherein the plurality of buffers are connected with the host computer through the RXD serial port, each buffer is connected with a plurality of optical couplers, each optical coupler is connected with the slave computer through the TXD serial port, and the optical couplers are used for programming a program of the host computer to the plurality of slave computers through a programming board; the host is provided with a P2MP key for entering a programming mode and a programming key for starting programming;
specifically, the method for programming the program by the programming device comprises the following steps:
s1: enabling the host to enter a programming mode, and enabling the host to send a synchronous signal through a serial port;
s2: the slaves respectively receive the synchronous signals and synchronize with the master;
s3: the host computer sends I2C data to lock a plurality of slaves, and whether the slaves are connected normally or not is detected;
s4: the host divides the program data into a plurality of paths through the programming board and sends the paths to the slave computers which are connected normally, and the host writes FLASH and OTP; starting OTP setting of an encryption boot for encryption during programming;
s5: and the slave receives a restarting instruction sent by the host to restart, and the programming is completed.
2. The P2MP software programming device with detection function according to claim 1, further comprising: and the display equipment is respectively connected with the plurality of slaves and is used for prompting the connection state of the slaves.
3. The P2MP software programming device with detection function according to claim 1, wherein said programming board is further provided with a ground port for connecting with the ground ports of said master and slave, respectively.
4. The P2MP software programming device with detection function according to claim 1, wherein said programming board is further provided with a power port for connecting with the power ports of said master and slave, respectively.
5. The P2MP software programming device with detection function according to any one of claims 1 to 4, wherein the master and the slave are set-top boxes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910085299.8A CN109597630B (en) | 2019-01-29 | 2019-01-29 | P2MP software programming device and method with detection function |
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| CN201910085299.8A CN109597630B (en) | 2019-01-29 | 2019-01-29 | P2MP software programming device and method with detection function |
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| CN109597630A CN109597630A (en) | 2019-04-09 |
| CN109597630B true CN109597630B (en) | 2023-12-29 |
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| CN114385093A (en) * | 2022-03-24 | 2022-04-22 | 成都雷电微力科技股份有限公司 | System for promoting phased array antenna production efficiency |
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