CN116244254A - RSMC chip, chip channel self-adaptive loading method and Beidou communication navigation device - Google Patents

Abstract

The application discloses an RSMC chip, a chip channel self-adaptive loading method and Beidou communication navigation equipment, and belongs to the technical field of electronic information. The RSMC chip is connected with the main processor through at least two channels, and the RSMC chip comprises: a nonvolatile memory area for loading a chip running start program; the interaction interface is used for being connected with the main processor through a current channel; a detection unit for detecting whether a channel switching event exists; a channel switching unit for switching from a current channel to a target channel; the interactive interface is used for transmitting the frame fragments of the target program from the main processor to the RSMC chip through the target channel; a first random access memory area for storing a target program; and the second random access storage area is used for storing data generated in the running process of the target program. According to the technical scheme, the multi-channel connection between the RSMC chip and the main processor can be realized, and the effect of self-adaptive switching between channels can be realized under the condition of demand.

Description

RSMC chip, chip channel adaptive loading method and Beidou communication and navigation equipment

technical field

The application belongs to the technical field of electronic information, and in particular relates to an RSMC chip, a chip channel self-adaptive loading method and Beidou communication and navigation equipment.

Background technique

With the rapid development of science and technology, chips have become indispensable electronic components in industrial production.

Currently, in the chip design process, since the chip is required to run a specific program, a non-volatile memory needs to be provided inside the chip for storing the running program. Typical non-volatile memories include flash and eeprom, etc. A typical Soc chip (System On Chip, system on a chip) has the following problems in the integration of non-volatile memory: on the one hand, it is due to the problem of increasing the area caused by setting the non-volatile memory; on the other hand, even if the area is overcome by other means The problems of increasing the size and the time-consuming complexity of the test, and the problem that the interactive channel between the Soc chip and the main chip is single, and the adaptive switching of the channel cannot be realized.

Contents of the invention

The purpose of the embodiment of the present application is to provide an RSMC chip, a chip channel adaptive loading method and Beidou communication and navigation equipment, which can solve the problems of increased area, long test time and low yield due to the non-volatile memory set on the RSMC chip. problems, and at the same time, it can also realize the multi-channel connection between the RSMC chip and the main processor, and realize the effect of self-adaptive switching between channels when there is a demand.

In the first aspect, the embodiment of the application provides an RSMC chip, the RSMC chip is connected to the main processor through at least two channels, and the RSMC chip includes:

Non-volatile storage area, used to load the chip to run the startup program;

An interactive interface is used to connect with the main processor through the current channel, so as to transmit the frame segment of the target program from the main processor to the RSMC chip;

a detection unit, configured to detect whether there is a channel switching event;

a channel switching unit, configured to switch from a current channel to a target channel in response to a channel switching event;

The interactive interface is used to transmit the frame segment of the target program from the main processor to the RSMC chip through the target channel;

a first random access storage area for storing the target program;

The second random access storage area is used to store data generated during the running of the target program.

Further, the chip runs a startup program, specifically for:

Exchanging a handshake protocol with the main processor through the interaction interface;

If the handshake is successful, the target program sent by the main processor is received frame by frame.

Further, the chip runs a startup program, and is also used for:

After receiving the target program sent by the main processor frame by frame, check the frame segments of the target program frame by frame;

If the verification is successful, the frame segment of the target program is stored in the first random access storage area.

Further, the first random access storage area is specifically used for:

After the receiving of the target program is completed, the target program is run.

Further, the channel switching event includes:

checking an event that the frame segment of the target program received through the current channel is incomplete;

or,

An event is received in which a channel switch command is issued by the host processor.

Further, the channel switching unit is specifically used for:

By detecting the potential of at least one control pin of the RSMC chip, it is determined to perform a channel switching operation, so as to switch from the current channel to the target channel.

Further, the channel switching unit is also used for:

After performing the channel switching operation, re-shake hands with the main processor by running the startup program on the chip;

According to the received indication flag, it is determined to perform a reservation process on the data received by the current channel, or to perform a clearing process.

In the second aspect, the embodiment of the present application provides a chip channel adaptive loading method, the method is executed by the RSMC chip described in the above scheme, and the RSMC chip is connected to the main processor through at least two channels; the method include:

If the chip is powered on, start the chip stored in the non-volatile storage area to run the startup program;

performing frame segment transmission of the target program through the current channel, and storing the target program in a first random access storage area;

Detect whether there is a channel switching event;

switching from a current channel to a target channel in response to a channel switching event;

Transferring the frame segment of the target program from the main processor to the RSMC chip through the target channel;

Running the target program after receiving the target program; if data is generated during the running of the target program, it is stored in the second random access storage area.

Further, after switching from the current channel to the target channel, the method further includes:

Re-shake hands with the main processor by running the boot program on the chip;

According to the received indication flag, it is determined to perform a reservation process on the data received by the current channel, or to perform a clearing process.

In a third aspect, the embodiment of the present application provides a Beidou communication and navigation device, the Beidou communication and navigation device includes a main processor, and includes an RSMC chip as described in the above solution connected to the main processor.

In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a program or an instruction is stored, and when the program or instruction is executed by a processor, the steps of the method described in the second aspect are implemented .

In the embodiment of the present application, the RSMC chip is connected to the main processor through at least two channels, and the RSMC chip includes: a non-volatile storage area for loading the chip to run the startup program; an interactive interface for communicating with the main processor The device is connected through the current channel to transmit the frame segment of the target program from the main processor to the RSMC chip; the detection unit is used to detect whether there is a channel switching event; the channel switching unit is used to respond to the channel switching event, Switch from the current channel to the target channel; the interactive interface is used to transmit the frame segment of the target program from the main processor to the RSMC chip through the target channel; the first random access storage area is used to store the The target program; the second random access storage area is used to store data generated during the running of the target program. This technical solution can avoid setting too many program storage areas on the RSMC chip by putting the programs that need to be run into the random access storage area of the RSMC chip, and can also realize the multi-channel connection between the RSMC chip and the main processor , to achieve the effect of adaptively switching between channels when there is a demand.

Description of drawings

Fig. 1 is the structural representation of the RSMC chip that the application embodiment one provides;

Fig. 2 is the structural representation of the RSMC chip that the application embodiment two provides;

Fig. 3 is the schematic diagram of the interaction mode of the RSMC chip and the main processor provided by the second embodiment of the present application;

FIG. 4 is a schematic flow chart of a chip channel adaptive loading method provided in Embodiment 3 of the present application;

Fig. 5 is a schematic structural diagram of a Beidou communication and navigation device provided in Embodiment 4 of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, specific embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only parts relevant to the present application are shown in the drawings but not all content. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe various operations (or steps) as sequential processing, many of the operations may be performed in parallel, concurrently, or simultaneously. In addition, the order of operations can be rearranged. The process may be terminated when its operations are complete, but may also have additional steps not included in the figure. The processing may correspond to a method, function, procedure, subroutine, subroutine, or the like.

The following will clearly describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein, and that references to "first," "second," etc. distinguish Objects are generally of one type, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the specification and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

An RSMC chip, a chip channel adaptive loading method and a Beidou communication and navigation device provided in the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings through specific embodiments and application scenarios.

Embodiment one

FIG. 1 is a schematic structural diagram of an RSMC chip provided in Embodiment 1 of the present application. As shown in Figure 1, specifically include:

Described RSMC chip 100 is connected with main processor 200, and described RSMC chip 100 comprises:

The non-volatile storage area 101 is used to load the chip to run the startup program;

The interactive interface 102 is used to connect with the main processor 200 through the current channel, so as to transmit the frame segment of the target program from the main processor to the RSMC chip 100;

A detection unit 103, configured to detect whether there is a channel switching event;

A channel switching unit 104, configured to switch from a current channel to a target channel in response to a channel switching event;

The interactive interface 102 is used to transmit the frame segment of the target program from the main processor 200 to the RSMC chip 100 through the target channel;

The first random access storage area 105 is used to store the target program;

The second random access storage area 106 is used to store data generated during the running of the target program.

First, the application scenario of this solution may be in a smart terminal or other devices, such as a smart phone, a tablet computer or a desktop computer. It can be understood that the operation of Beidou communication and navigation equipment needs to rely on the core processor, which may contain the main program run by Beidou communication and navigation equipment. The core processor can be equivalent to the main processor mentioned in this scheme, and the RSMC chip can be on the same PCB board (Printed Circuit Board, printed circuit board) with the main processor, or it can be on a different PCB The board is connected via wired or wireless. In addition, the RSMC chip can also be externally connected to the Beidou communication and navigation equipment. This solution does not limit the connection method between the two.

In this solution, the internal structure of the RSMC chip may include one or more non-volatile storage areas 101 .

It can be understood that in order to save the area of the RSMC chip, the program can reduce the setting of the non-volatile storage area 101 as much as possible, and as long as the Soc circuit inside the RSMC chip includes a bootrom, it is used as the non-volatile storage area 101 to store the chip Just run the startup program. After the chip is started, it runs the program of bootrom at first, and the program of bootrom contains the code inserted into the program by the main processor.

It can be understood that the bootrom here can be a reserved rom inside the RSMC chip, which is read-only but not writeable. After the RSMC chip is powered on, it will automatically run the chip to run the startup program, so it is called bootrom.

The role of the RSMC chip running the startup program can be the function of receiving the target program from the external main processing, which is equivalent to entering the receiving waiting state of the program after startup. Specifically, the receiving pin of the RSMC chip can be used for receiving in a wired connection, so as to realize the receiving and running of the target program.

In this embodiment, the specific receiving speed or the receiving bandwidth can be determined according to the data transmission capability of the RSMC chip.

It can be understood that, after the RSMC chip running start-up program runs, the RSMC chip 100 can perform data transmission with the main processor 200 . Specifically, it can be realized through the interactive interface 102 set on the RSMC chip. Wherein, the interaction interface may be composed of one or more pins of the RSMC chip 100, and may also be an external physical interface connected to the RSMC chip through pins. It can be understood that the interactive interface 102 can be used to send data to the main processor, and can also be used to receive data from the main processor, that is, it has a sending and receiving function at the same time.

In this solution, the interactive interface 102 can cooperate with the bootrom to receive the target program. Here, the specific receiving manner may be frame-by-frame receiving. It can be understood that after frame-by-frame reception, the frame fragments of the target program can be obtained, and each frame fragment can be stored in the first random access storage area 105 after being successfully received.

The detection unit 103 is configured to detect whether there is a channel switching event.

In a special scenario, during the above process, the startup mode of the RSMC chip is detected in real time. If there is a change, that is, it is recognized as an external attempt to switch channel loading, the current loading process is stopped and changed to a new channel loading.

In this embodiment, optionally, the channel switching event includes:

checking an event that the frame segment of the target program received through the current channel is incomplete;

or,

An event is received in which a channel switch command is issued by the host processor.

It can be understood that the channel switching event can be triggered when the main processor detects that the process of transmitting the frame fragments of the target program through the current channel is slow, and cannot receive the feedback information from the RSMC chip in time, or the feedback information from the RSMC chip is wrong. Channel switch event. In addition, the channel switching event can also be triggered after the main processor counts the cumulative number of abnormalities that have occurred during the current channel transmission process exceeding the set threshold, or it can also be triggered when the feedback information delay exceeds the set threshold during the current channel transmission process. Triggered after a time threshold. All of the above can be implemented independently based on the set rules.

In addition, the channel switching event may also be that the main processor actively issues a channel switching instruction. For example, the current channel transmits program A. Before the transmission is completed, the main processor determines that the RSMC chip needs to execute program B. Then, the main processor can actively issue a channel switching command to switch channels. It can be understood that in this case, the channel switching also realizes the switching of channel transmission content, thereby improving the flexibility of using the RSMC chip.

Exemplary, the channel switching mode adopted in this scheme can be that the main processor actively controls the level of the RSMC chip startup mode pin to realize the notification of the channel switching event, and the RSMC chip can detect the voltage level of the startup mode pin. Ping signal, confirm and execute the switching action.

The channel switching unit 104 is configured to switch from the current channel to the target channel in response to a channel switching event.

The specific switching manner may be determined according to the channel quantity and channel type. For example, the number of channels can be two or more, and the channels can include various interactive channels such as UART and SPI.

UART (Universal Asynchronous Receiver/Transmitter, Universal Asynchronous Receiver Transmitter), is an asynchronous transceiver transmitter, and is a key module for asynchronous communication between devices. UART is responsible for processing the serial/parallel and parallel/serial conversion between the data bus and the serial port, and stipulates the frame format; as long as the two sides of the communication adopt the same frame format and baud rate, they can communicate without sharing the clock signal. , the communication process can be completed with only two signal lines (Rx and Tx), so it is also called asynchronous serial communication. , SPI and other interactive channels.

SPI (Serial Peripheral Interface, Serial Peripheral Interface), is a high-speed, full-duplex, synchronous communication bus, and only occupies four wires on the pins of the chip, saving the pins of the chip and providing The PCB layout saves space and provides convenience. It is because of this easy-to-use feature that more and more chips integrate this communication protocol.

In this embodiment, optionally, the channel switching unit is specifically used for:

By detecting the potential of at least one control pin of the RSMC chip, it is determined to perform a channel switching operation, so as to switch from the current channel to the target channel.

In this solution, specifically, it can be controlled by one control pin, for example, low level represents the SPI channel, high level represents the UART channel, and even two or three pins can be used to form various modes.

The first random access storage area 105 may use a partition of a RAM (Random Access Memory, random access memory), or use an entire RAM as the first random access storage area 105 . RAM is the internal memory that exchanges data directly with the CPU. It can be read and written at any time, and the speed is very fast, and it is usually used as a temporary data storage medium for operating systems or other running programs. When RAM is working, information can be written or read from any specified address at any time.

In this solution, the first random access storage area 105 is used to store the target program. Wherein, the target program is a program that needs to be run by the RSMC chip. Since the RSMC chip does not use ROM as the carrier of the program, the RSMC chip needs to obtain the target program from the main processor every time it is powered on. This setting can not only simplify the design of the RSMC chip, but also increase the flexibility of the RSMC chip. For example, in one scenario, the RSMC chip needs to run program A, and in another scenario, the RSMC chip needs to run program B. If it is Using the ROM design method, both program A and program B need to be burned in the ROM of the RSMC chip, but if the RAM storage method is used, this problem can be avoided, that is, the main processor can be sent to the main processor according to different scenarios. Get the code of program A or program B to run the program. Even in other scenarios, program C or program D can also be run according to requirements.

It can be understood that the first random access storage area 106 may belong to the same RAM as the first random access storage area 105 , but not at the same address, or may belong to a different RAM from the first random access storage area 105 . The first random access storage area 106 can store data generated during the running of the target program to complete the tasks executed by the target program. Specifically, it may be input parameters, output result data, log data of the target program, and the like.

In this embodiment, optionally, the chip runs a startup program, specifically for:

Exchanging a handshake protocol with the main processor through the interaction interface;

If the handshake is successful, the target program sent by the main processor is received frame by frame.

Wherein, the process of the interactive handshake protocol may be a process of specifying objects for subsequent target program transmission between the two. For example, in the process of the interactive handshake protocol, the main processor can send identity confirmation information and status confirmation information to the RSMC chip to know whether the RSMC chip is an RSMC chip capable of writing the target program, and whether the RSMC chip has been completed. After power-on and other preparations, the target program can be received. After the RSMC chip responds to the main processor, it can be determined that the handshake is successful. If no reply is made within a certain period of time, it can be determined that the RSMC chip has not reached an ideal state, and the code content of the target program cannot be sent to the RSMC chip.

In this embodiment, after the handshake is successful, the RSMC chip can receive the target program sent by the main processor frame by frame. Each frame may include a part of code of the target program, for example, each frame includes 5 lines of code of the target program. Frames can be sorted by frame number, for example, frame number 0000 0000 is the first frame, frame number 0000 0001 is the second frame, frame number 0000 0010 is the third frame, and so on.

On the basis of the above technical solutions, optionally, the chip runs a startup program, and is also used for:

After receiving the target program sent by the main processor frame by frame, check the frame segments of the target program frame by frame;

If the verification is successful, the frame segment of the target program is stored in the first random access storage area.

In this solution, frame-by-frame verification can be performed on the frame segments of the target program. For example, the sequence and integrity of frame segments are checked frame by frame. Specifically, checking the sequence may be checking the frame number, and may be used to check whether the received target program is a complete program. In addition, to check the integrity, you can read the data length of the frame segment by reading the header data of the frame segment, and then determine the actual length of the frame segment, and then verify the read theoretical length and actual length.

After the verification is successful, the frame segments of the target program can be stored in order in the target address of the first random access storage area, so as to realize the sequential storage of the code content of the target program.

This scheme is set in this way, which can ensure that the frame fragments of the saved target program are correct, can improve the stability of the subsequent running process of the target program, and avoid error reporting.

The technical solution provided by this embodiment includes by setting the RSMC chip: a non-volatile storage area, which is used to load the chip to run the startup program; an interactive interface, which is used to connect with the main processor to perform frame segment transmission of the target program; A random access storage area is used to store the target program; a second random access storage area is used to store data generated during the running of the target program. This technical solution can avoid setting too many program storage areas on the RSMC chip by putting the programs that need to be run into the random access storage area of the RSMC chip, and can also realize the flexible execution of the required programs through the RSMC chip. The effect of improving the flexibility of using the RSMC chip is achieved.

Embodiment two

FIG. 2 is a schematic structural diagram of an RSMC chip provided in Embodiment 2 of the present application. As shown in Figure 2, it specifically includes: the chip runs a startup program, and is also used for:

Before exchanging the handshake protocol with the main processor 200 through the interaction interface 102, send specific characters to the main processor 200 according to a preset period, for the main processor 200 to Set a cycle to determine the chip identity information.

In this solution, it can be understood that there may be more than one RSMC chip with similar functions in the Beidou communication and navigation equipment. In such a scenario, before the main processor sends the target program to the RSMC chip, it needs to determine whether the object to be sent can run the target program, or determine whether the RSMC chip is originally designed to run other programs. Therefore, it is necessary to determine the identity information of the RSMC chip before sending the target program, or before performing the interactive handshake protocol.

In this solution, optionally, the channel switching unit is also used for:

After performing the channel switching operation, re-shake hands with the main processor by running the startup program on the chip;

According to the received indication flag, it is determined to perform a reservation process on the data received by the current channel, or to perform a clearing process.

In this solution, for channel switching, it is necessary to shake hands with the main processor again to clarify the identities of both parties. After confirming that there is no problem with the identities of both parties, it can be determined that the current channel has received Part of the data of the target program is retained or cleared. For example, after the indication flag is received, if it is 1, it is reserved, and if it is 0, it is cleared.

In another feasible solution, the processing method for the received part of the data may also be written according to certain rules, for example, all processing is clear by default, or all processing is reserved by default. Or when the transmitted data meets certain conditions, it can be reserved. For example, some of the transmitted data is more than 50% of the target program, or the use of the target program is higher than a certain threshold. It can be reserved. In other cases is cleared.

This embodiment is set in such a way that the processing mode of the target program can be determined during the re-handshake process, which can ensure the effective processing of the loaded data and improve the stability of the RSMC chip operation.

This solution provides a specific determination method, that is, the RSMC chip sends specific characters to the main processor according to the preset cycle according to the rules set in the chip operation startup program. It can be understood that the preset periods of different RSMC chips may be different, and the specific characters may also be different. After sending to the main processor, the main processor may provide cycle information and specific character information for the main processor to determine the chip identity information according to one or both of these two pieces of information. Specifically, an association table may be set in the main processor, and the association table includes the association relationship between the chip identity information and the preset period, or the association relationship between the chip identity information and a specific character, or includes the chip identity information and the preset period and the relationship between the three specific characters. After the main processor receives the cycle information and/or the specific character information, it can determine the chip identity information according to the association table, for example, determine that the RSMC chip ID is 10-111320.

In this embodiment, by controlling the RSMC chip to send specific characters to the main processor according to the preset cycle, it is convenient for the main processor to determine the chip identity information, so as to perform further handshake and send the target program, and provide guarantee for the normal operation of the subsequent target program .

On the basis of the foregoing embodiments, optionally, the first random access storage area 105 is specifically used for:

After the receiving of the target program is completed, the target program is run.

Wherein, after the receiving is completed, the RSMC chip can jump from the bootrom to the first random access storage area 105 to run the target program. Specifically, the jump may be performed according to the initial storage location of the frame segment of the target program.

FIG. 3 is a schematic diagram of an interaction mode between the RSMC chip and the main processor provided in Embodiment 2 of the present application. As shown in FIG. 3 , this solution implements a method on a consumer terminal, such as a mobile phone, a watch, and a bracelet.

Beidou RSMC (regional short message communication, regional short message communication service) chip program is embedded by the external main platform.

The Soc circuit inside the RSMC chip includes bootrom, program RAM and data RAM. After the RSMC chip is started, it first runs the program of the bootrom, and the program of the bootrom contains the code inserted into the program by the main processor.

The typical execution flow of the code is as follows:

Determine the type of startup mode in the first stage, taking SPI as an example;

First, load through the first boot method, that is, the external image loading process through the SPI channel, including the following steps:

1. The RSMC chip shakes hands with the main platform processor;

2. After the handshake is successful, enter the code data transmission mode;

3. RSMC performs verification after transmitting the code data, and jumps to the program RAM to run after the verification is successful;

During the above process, the startup mode is detected in real time. If there is a change, that is, it reflects an external attempt to switch channel loading, then stop the current loading process and change to a new channel loading. When switching, you can also choose to clear the loaded part of the data or keep the loaded data according to the switching handshake prompt. During the loading process using the new channel, it still maintains the detection of the startup mode in real time, and continues to support real-time switching. The switching process is consistent, that is, the switching handshake is performed first, and whether to retain the loaded part of the data is selected according to the switching mode.

The above process is referred to as an external loading startup mode of channel adaptation.

The program is started by external loading, but there is a problem that the starting mode cannot be switched in the middle, that is, after a certain channel is selected, only the channel can be sampled for the whole process of loading, even if an external attempt is made to switch the starting mode, it cannot be realized. The present invention mainly solves this problem. On the basis of external loading, the design of channel self-adaptive loading startup mode is added, and the flexibility of the loading process is improved. .

Embodiment Three

FIG. 4 is a schematic flowchart of a chip channel adaptive loading method provided in Embodiment 3 of the present application. As shown in Figure 4, specifically include:

S401. If the chip is powered on, start the chip stored in the non-volatile storage area to run the startup program.

S402. Transmit the frame segment of the target program through the current channel, and store the target program in the first random access storage area.

S403. Detect whether there is a channel switching event.

S404. Switch from the current channel to the target channel in response to the channel switching event.

S405. Transmit the frame segment of the target program from the main processor to the RSMC chip through the target channel.

S406. Run the target program after receiving the target program; if data is generated during the running of the target program, store it in the second random access storage area.

On the basis of the above technical solution, optionally, after switching from the current channel to the target channel, the method further includes:

Re-shake hands with the main processor by running the boot program on the chip;

According to the received indication flag, it is determined to perform a reservation process on the data received by the current channel, or to perform a clearing process.

On the basis of the above technical solution, optionally, after starting the chip stored in the non-volatile storage area to run the startup program, the method further includes:

Sending a specific character to the main processor according to a preset period for the main processor to determine chip identity information according to the specific character and the preset period.

On the basis of the above technical solution, optionally, connecting to the main processor through an interactive interface to transmit the frame segment of the target program, and storing the target program in the first random access storage area, including:

Exchanging a handshake protocol with the main processor through the interaction interface;

If the handshake is successful, receiving the target program sent by the main processor frame by frame;

performing frame-by-frame verification on the frame segments of the target program;

If the verification is successful, the frame segment of the target program is stored in the first random access storage area.

On the basis of the above technical solution, optionally, after running the target program, the method further includes:

If the chip is powered off, the target program in the first random access storage area is cleared, and the data stored in the second random access storage area is cleared.

In the embodiment of the present application, the RSMC chip is connected to the main processor through at least two channels, and the RSMC chip includes: a non-volatile storage area for loading the chip to run the startup program; an interactive interface for communicating with the main processor The device is connected through the current channel to transmit the frame segment of the target program from the main processor to the RSMC chip; the detection unit is used to detect whether there is a channel switching event; the channel switching unit is used to respond to the channel switching event, Switch from the current channel to the target channel; the interactive interface is used to transmit the frame segment of the target program from the main processor to the RSMC chip through the target channel; the first random access storage area is used to store the The target program; the second random access storage area is used to store data generated during the running of the target program. This technical solution can avoid setting too many program storage areas on the RSMC chip by putting the programs that need to be run into the random access storage area of the RSMC chip, and can also realize the multi-channel connection between the RSMC chip and the main processor , to achieve the effect of adaptively switching between channels when there is a demand.

The chip channel self-adaptive loading method provided in the embodiment of the present application is implemented by using the RSMC chip provided in the above-mentioned embodiments, and has corresponding functions and effects. To avoid repetition, details are not repeated here.

Embodiment Four

Fig. 5 is a schematic structural diagram of a Beidou communication and navigation device provided in Embodiment 4 of the present application. As shown in Figure 5, the embodiment of the present application also provides a Beidou communication and navigation device 500, the Beidou communication and navigation device includes a main processor 501, and includes a device connected to the main processor 501 as described in the above embodiments RSMC chip 502 .

The Beidou communication and navigation device provided in this embodiment can implement the chip channel adaptive loading method provided in the above embodiment, and can achieve the same technical effect. To avoid repetition, details are not repeated here.

It should be noted that the Beidou communication and navigation equipment in the embodiment of the present application includes the above-mentioned mobile equipment and non-mobile equipment.

Embodiment five

The embodiment of the present application also provides a readable storage medium, the readable storage medium stores a program or an instruction, and when the program or instruction is executed by the processor, each process of the above embodiment of the chip channel adaptive loading method is implemented, and The same technical effect can be achieved, so in order to avoid repetition, details will not be repeated here.

Wherein, the processor is the processor in the Beidou communication and navigation device described in the above embodiments. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , optical disc), including several instructions to enable a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

The above are only preferred embodiments of the present application and the applied technical principles. The present application is not limited to the specific embodiments described here, and various obvious changes, readjustments and substitutions that can be made by those skilled in the art will not depart from the protection scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present application, and the present application The scope is determined by the scope of the claims.

Claims (10)

1. An RSMC chip, characterized in that it is connected to a main processor by at least two channels, the RSMC chip comprising:

a nonvolatile memory area for loading a chip running start program;

the interactive interface is used for being connected with the main processor through a current channel so as to transmit the frame fragments of the target program from the main processor to the RSMC chip;

a detection unit for detecting whether a channel switching event exists;

a channel switching unit for switching from a current channel to a target channel in response to a channel switching event;

the interactive interface is used for transmitting frame fragments of a target program from the main processor to the RSMC chip through the target channel;

a first random access memory area for storing the target program;

and the second random access storage area is used for storing data generated in the running process of the target program.

2. The RSMC chip according to claim 1, characterized in that it runs a start-up program, in particular for:

interaction handshake protocol with the main processor through the interaction interface;

and if the handshake is successful, receiving the target program sent by the main processor frame by frame.

3. The RSMC chip of claim 2, characterized in that the chip runs a start-up program, further for:

after receiving a target program sent by the main processor frame by frame, performing frame by frame verification on frame fragments of the target program;

and if the verification is successful, storing the frame fragments of the target program into the first random access storage area.

4. The RSMC chip according to claim 1, characterized in that the first random access memory area is specifically configured to:

and after the target program is received, operating the target program.

5. The RSMC chip of claim 1, characterized in that the channel switching event comprises:

checking an event that a frame fragment of the target program received through a current channel is incomplete;

or,

an event is received that a channel switch instruction is issued by the host processor.

6. The RSMC chip according to claim 5, characterized in that the channel switching unit is specifically configured to:

by detecting the potential of at least one control pin of the RSMC chip, it is determined to perform a channel switching operation to switch from a current channel to a target channel.

7. The RSMC chip of claim 6, characterized in that the channel switching unit is further configured to:

after the channel switching operation is executed, the chip runs a starting program to handshake with the main processor again;

and according to the received indication mark, determining to carry out reservation processing or clearing processing on the data received by the current channel.

8. A chip channel adaptive loading method, characterized in that the method is performed by the RSMC chip of any one of claims 1-7, which is connected to a main processor through at least two channels; the method comprises the following steps:

if the chip is electrified, the chip stored in the nonvolatile storage area is started to run a starting program;

transmitting a frame fragment of a target program through a current channel, and storing the target program into a first random access storage area;

detecting whether a channel switching event exists;

switching from the current channel to the target channel in response to a channel switching event;

transmitting frame fragments of a target program from the host processor to the RSMC chip through the target channel;

running the target program after the target program is received; and if data are generated in the running process of the target program, storing the data into a second random access storage area.

9. The chip channel adaptive loading method according to claim 8, wherein after switching from a current channel to a target channel, the method further comprises:

operating a starting program through the chip to handshake with the main processor again;

and according to the received indication mark, determining to carry out reservation processing or clearing processing on the data received by the current channel.

10. A Beidou communication navigation device, characterized in that it comprises a main processor and an RSMC chip as claimed in any one of claims 1-7 connected to said main processor.

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