CN112463236A - Single-soft multi-hard implementation method and terminal - Google Patents
Single-soft multi-hard implementation method and terminal Download PDFInfo
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- CN112463236A CN112463236A CN202011377270.6A CN202011377270A CN112463236A CN 112463236 A CN112463236 A CN 112463236A CN 202011377270 A CN202011377270 A CN 202011377270A CN 112463236 A CN112463236 A CN 112463236A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4411—Configuring for operating with peripheral devices; Loading of device drivers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44505—Configuring for program initiating, e.g. using registry, configuration files
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Abstract
The invention discloses a single-soft multi-hard implementation method and a terminal; the invention configures the default state of all multi-supply peripherals in the equipment tree as no loading; starting a boot program to read a current preset pin voltage of current equipment hardware, and acquiring a current hardware version corresponding to the current preset pin voltage according to a mapping relation between the preset pin voltage and the hardware version; setting the state of the peripheral corresponding to the current hardware version in the equipment tree to be loaded according to the current hardware version; loading a driver corresponding to the peripheral equipment with the state needing to be loaded in the equipment tree by the real-time operating system; the invention configures the equipment state in the equipment tree by reading the ADC pin, so that the corresponding equipment driver is automatically loaded, single software or multiple hardwares are realized, one set of software can be automatically adapted to different hardware, the development period is shortened, the workload is reduced, and the condition of programming confusion caused by multiple projects is avoided.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a single-soft multi-hard implementation method and a terminal.
Background
When a project product is completed, a software platform not only does one project, but also derives a plurality of projects based on one project. And these items are often only peripheral replacement on hardware, for example, we have completed item a, but the display screen of item B of the new customer is replaced by display screen B, the display screen of item C is replaced by display screen C, and the like.
In the prior art, different items are often adopted to correspond to different compiling scripts, and different compiling scripts use different config configuration files and different modes of device tree files. Thus, compiling only corresponding drive codes according to config difference to generate different image files; and according to the difference of the equipment trees, only loading the corresponding drive to start when starting. Such as:
item A, using a compiling script build _ A, configuring a support LCD _ A by a config file in the project A, and setting a dts equipment tree LCD _ A status as OK; when compiled, the codes of the LCD _ A display screen are compiled; the generated mirror image file only contains the drive of the LCD _ A display screen; the boot device only loads the driver of LCD _ a.
Item B, using a compiling script build _ B, configuring a support LCD _ B by a config file in the item B, and setting the status of a dts equipment tree LCD _ B to be OK; thus compiled is the code of the LCD _ B display screen. The generated image file only contains the drive of the LCD _ B display screen, and the starting-up equipment only loads the drive of the LCD _ B.
Different projects use different image files, and the following disadvantages exist:
(1) resulting in increased development effort and more complex code maintenance.
(2) And the test workload is increased, a plurality of software are tested completely, and if only one set of software is used, some public tests of different projects can be tested less or less test resources are invested.
(3) Once more items are available, the programming is also easy to be confused.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method and the terminal for realizing single soft and multiple hard are provided, so that the workload is reduced, and the condition of programming confusion caused by more projects is avoided.
In order to solve the technical problems, the invention adopts the technical scheme that:
a method of single soft multi-hard implementation, comprising:
s1, configuring the states of all the multi-supply peripherals in the equipment tree as no loading by default;
s2, starting a boot program to read the current preset pin voltage of the current equipment hardware, and acquiring the current hardware version corresponding to the current preset pin voltage according to the mapping relation between the preset pin voltage and the hardware version;
s3, setting the state of the peripheral corresponding to the current hardware version in the equipment tree to be loaded according to the current hardware version;
and S4, loading the driver corresponding to the peripheral equipment with the state needing to be loaded in the equipment tree by the real-time operating system.
A single soft multi-hard implementation terminal, comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
s1, configuring the states of all the multi-supply peripherals in the equipment tree as no loading by default;
s2, starting a boot program to read the current preset pin voltage of the current equipment hardware, and acquiring the current hardware version corresponding to the current preset pin voltage according to the mapping relation between the preset pin voltage and the hardware version;
s3, setting the state of the peripheral corresponding to the current hardware version in the equipment tree to be loaded according to the current hardware version;
and S4, loading the driver corresponding to the peripheral equipment with the state needing to be loaded in the equipment tree by the real-time operating system.
The invention has the beneficial effects that: the invention reads the voltage of the preset pin, configures the equipment state in the equipment tree according to the difference of the voltage, and automatically loads the corresponding equipment drive, thereby realizing single software or multiple hardnesses, automatically adapting to different hardware by one set of software, shortening the development period, reducing the workload and avoiding the condition of programming confusion caused by multiple projects.
Drawings
FIG. 1 is a flow chart of a single soft multi-hard implementation method according to an embodiment of the present invention;
fig. 2 is a block diagram of a single soft multi-hard implementation terminal according to an embodiment of the present invention;
FIG. 3 is a detailed flow chart of a single soft multi-hard implementation method according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an ADC pin of a single soft multi-hard implementation method according to an embodiment of the present invention;
description of reference numerals:
1. a single soft multi-hard implementation terminal; 2. a processor; 3. a memory.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, fig. 3 and fig. 4, a method for implementing single soft and multiple hard includes:
s1, configuring the states of all the multi-supply peripherals in the equipment tree as no loading by default;
s2, starting a boot program to read the current preset pin voltage of the current equipment hardware, and acquiring the current hardware version corresponding to the current preset pin voltage according to the mapping relation between the preset pin voltage and the hardware version;
s3, setting the state of the peripheral corresponding to the current hardware version in the equipment tree to be loaded according to the current hardware version;
and S4, loading the driver corresponding to the peripheral equipment with the state needing to be loaded in the equipment tree by the real-time operating system.
From the above description, the beneficial effects of the present invention are: the invention reads the voltage of the preset pin, configures the equipment state in the equipment tree according to the difference of the voltage, and automatically loads the corresponding equipment drive, thereby realizing single software or multiple hardnesses, automatically adapting to different hardware by one set of software, shortening the development period, reducing the workload and avoiding the condition of programming confusion caused by multiple projects.
Further, the step S2 is specifically:
starting a boot bootstrap program uboot or boot loader to read the current preset pin voltage of the current equipment hardware as an ADC voltage value, acquiring a HW Version value corresponding to the ADC voltage value according to the mapping relation between the ADC voltage value and the HW Version, and acquiring a current hardware Version according to the HW Version value corresponding to the ADC voltage value.
As can be seen from the above description, the boot loader uses uboot or BootLoader as an embodiment of the present invention; in addition, the voltage value of the preset pin voltage and the hardware version are in one-to-one correspondence in advance, so that when the hardware version is judged subsequently, the corresponding hardware version can be obtained only according to the voltage value of the preset pin voltage, and single software or multiple hardware is realized.
Furthermore, the current preset pin voltage of the current device hardware is the divided voltage of two resistors on the current device hardware, and the resistance values of the two resistors on the current device hardware are different from the resistance values of the two resistors on the device hardware of other hardware versions.
As can be seen from the above description, the two resistors in different hardware versions have different resistance values, so as to generate different voltage division. Namely, different voltage values are output through replacement of the two resistors, so that different hardware versions are distinguished.
Further, the step S4 is followed by:
and S5, reading the value of the HW Version by a start function of the real-time operating system, and subdividing the drive of the real-time operating system according to the value of the HW Version.
From the above description we can further differentiate the drivers according to the value of HW Version, e.g. to distinguish different criteria.
Further, the device tree in step S1 is located in a real-time operating system, and the information described by the device tree includes: the number and type of CPUs, base address and size of memory, buses and bridges, peripheral connections, interrupt controller and interrupt usage, GPIO controller and GPIO usage, and Clock controller and Clock usage.
As apparent from the above description, the device tree of the present invention includes peripheral connection information and the like as an embodiment of the present invention.
Referring to fig. 2, a single-soft multi-hard implementation terminal includes a processor, a memory, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the following steps:
s1, configuring the states of all the multi-supply peripherals in the equipment tree as no loading by default;
s2, starting a boot program to read the current preset pin voltage of the current equipment hardware, and acquiring the current hardware version corresponding to the current preset pin voltage according to the mapping relation between the preset pin voltage and the hardware version;
s3, setting the state of the peripheral corresponding to the current hardware version in the equipment tree to be loaded according to the current hardware version;
and S4, loading the driver corresponding to the peripheral equipment with the state needing to be loaded in the equipment tree by the real-time operating system.
From the above description, the beneficial effects of the present invention are: the invention reads the voltage of the preset pin, configures the equipment state in the equipment tree according to the difference of the voltage, and automatically loads the corresponding equipment drive, thereby realizing single software or multiple hardnesses, automatically adapting to different hardware by one set of software, shortening the development period, reducing the workload and avoiding the condition of programming confusion caused by multiple projects.
Further, the step S2 is specifically:
starting a boot bootstrap program uboot or boot loader to read the current preset pin voltage of the current equipment hardware as an ADC voltage value, acquiring a HW Version value corresponding to the ADC voltage value according to the mapping relation between the ADC voltage value and the HW Version, and acquiring a current hardware Version according to the HW Version value corresponding to the ADC voltage value.
As can be seen from the above description, the boot loader uses uboot or BootLoader as an embodiment of the present invention; in addition, the voltage value of the preset pin voltage and the hardware version are in one-to-one correspondence in advance, so that when the hardware version is judged subsequently, the corresponding hardware version can be obtained only according to the voltage value of the preset pin voltage, and single software or multiple hardware is realized.
Furthermore, the current preset pin voltage of the current device hardware is the divided voltage of two resistors on the current device hardware, and the resistance values of the two resistors on the current device hardware are different from the resistance values of the two resistors on the device hardware of other hardware versions.
As can be seen from the above description, the two resistors in different hardware versions have different resistance values, so as to generate different voltage division. Namely, different voltage values are output through replacement of the two resistors, so that different hardware versions are distinguished.
Further, the processor, when executing the computer program, after step S4, further includes:
and S5, reading the value of the HW Version by a start function of the real-time operating system, and subdividing the drive of the real-time operating system according to the value of the HW Version.
From the above description we can further differentiate the drivers according to the value of HW Version, e.g. to distinguish different criteria.
Further, the device tree in step S1 is located in a real-time operating system, and the information described by the device tree includes: the number and type of CPUs, base address and size of memory, buses and bridges, peripheral connections, interrupt controller and interrupt usage, GPIO controller and GPIO usage, and Clock controller and Clock usage.
As apparent from the above description, the device tree of the present invention includes peripheral connection information and the like as an embodiment of the present invention.
Referring to fig. 1, fig. 3 and fig. 4, a first embodiment of the present invention is:
a method of single soft multi-hard implementation, comprising:
s1, configuring the states of all the multi-supply peripherals in the equipment tree as no loading by default;
the device tree in step S1 is located in a real-time operating system, and the information described by the device tree includes: the number and type of CPUs, base address and size of memory, buses and bridges, peripheral connections, interrupt controllers and interrupt usage, GPIO controllers and GPIO usage, and Clock controllers and Clock usage;
in this embodiment, a device tree of a kernel of a real-time operating system, that is, a dts file in the kernel, is a data structure for describing hardware resources, and transmits the hardware resources to a kernel through a boot program, so that the kernel and the hardware resource description are relatively independent, the device tree includes various driver device nodes, and the kernel also includes codes of these modules. For devices which are frequently replaced, such as a display screen, a touch screen, a camera and the like, the status is configured to be disabled, and then the boot process does not load the corresponding drivers of the device tree if the status of the drivers is not ok and the kernel does not load the drivers.
S2, starting a boot program to read the current preset pin voltage of the current equipment hardware, and acquiring the current hardware version corresponding to the current preset pin voltage according to the mapping relation between the preset pin voltage and the hardware version;
the step S2 specifically includes:
starting a boot bootstrap program uboot or boot loader to read a current preset pin voltage of current equipment hardware as an ADC voltage value, acquiring a HW Version value corresponding to the ADC voltage value according to a mapping relation between the ADC voltage value and the HW Version, and acquiring a current hardware Version according to the HW Version value corresponding to the ADC voltage value;
the current preset pin voltage of the current device hardware is the divided voltage of two resistors on the current device hardware, and the resistance values of the two resistors on the current device hardware are different from the resistance values of the two resistors on the device hardware of other hardware versions;
s3, setting the state of the peripheral corresponding to the current hardware version in the equipment tree to be loaded according to the current hardware version;
s4, loading the driver corresponding to the peripheral equipment with the state needing to be loaded in the equipment tree by the real-time operating system;
in this embodiment, when booting, the boot loader or BootLoader reads a value of an ADC pin of the hardware of the device, where Board _ Rev is used for different items or different boards, outputs different voltage values by replacing two resistors R47 and R48, and then outputs the voltage of Board _ Rev to the ADC, and the ADC value read in the boot loader is the voltage of Board _ Rev, as shown in fig. 4, the voltage of 1.8V is divided into 4 output ranges, which correspond to 4 items, as shown in the following table:
| HW Version | output range | Corresponding hardware version |
| 0 | 0～450 | |
| 1 | 450～900 | |
| 2 | 900～1350 | |
| 3 | 1350～1800 | Item D |
According to fig. 4, the Board _ Rev hardware theoretically outputs 1.8V × 12/(12+10) 0.982V 982mv, and outputs 900-1350 ranges corresponding to HW _ Version being 2, that is, knowing that the corresponding hardware Version is item C, we set the value of HW _ Version to 2 in the system, and set status of the specified peripheral corresponding to item C in the device tree to ok, in this embodiment, the display screen LCD manufacturers used by items a/B/C/D are different and respectively correspond to LCD _ a/LCD _ B/LCD _ C/LCD _ D, and then the boot procedure of the uboot boot program sets only the status of LCD _ C of the device tree to ok, and the others are also disabled;
loading each peripheral driver with status ok in the equipment tree by the kernel; then only the display screen driver of LCD _ C is loaded for item C.
The step S4 is followed by:
and S5, reading the value of the HW Version by a start function of the real-time operating system, and subdividing the drive of the real-time operating system according to the value of the HW Version.
For example, different countries correspond to different headset standards, such as project a being the us standard and project B being the european standard. Although both item a and item B use the same Audio manufacturer chip, we can determine whether item a or item B is the Audio driver by the HW _ Verison value, and then set item a to the american standard and item B to the european standard according to the HW _ Version value.
Referring to fig. 2, the second embodiment of the present invention is:
a single soft multi-hard implementation terminal 1 comprises a processor 2, a memory 3 and a computer program stored on the memory 3 and operable on the processor 2, wherein the processor 2 implements the steps of the first embodiment when executing the computer program.
In summary, according to the single-soft multi-hard implementation method and the terminal provided by the invention, the ADC pin is read to configure the device state in the device tree, so that the corresponding device driver is automatically loaded, single-soft multi-hard implementation is realized, one set of software can be automatically adapted to different hardware, the development period is shortened, the workload is reduced, and the situation of programming confusion caused by a large number of projects is avoided.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (10)
1. A single soft multi-hard implementation method, comprising:
s1, configuring the states of all the multi-supply peripherals in the equipment tree as no loading by default;
s2, starting a boot program to read the current preset pin voltage of the current equipment hardware, and acquiring the current hardware version corresponding to the current preset pin voltage according to the mapping relation between the preset pin voltage and the hardware version;
s3, setting the state of the peripheral corresponding to the current hardware version in the equipment tree to be loaded according to the current hardware version;
and S4, loading the driver corresponding to the peripheral equipment with the state needing to be loaded in the equipment tree by the real-time operating system.
2. The method according to claim 1, wherein the step S2 specifically includes:
starting a boot bootstrap program uboot or boot loader to read the current preset pin voltage of the current equipment hardware as an ADC voltage value, acquiring a HW Version value corresponding to the ADC voltage value according to the mapping relation between the ADC voltage value and the HW Version, and acquiring a current hardware Version according to the HW Version value corresponding to the ADC voltage value.
3. The single-soft multi-hard implementation method according to claim 2, wherein the current preset pin voltage of the current device hardware is a divided voltage of two resistors on the current device hardware, and a resistance value of the two resistors on the current device hardware is different from a resistance value of the two resistors on the device hardware of other hardware versions.
4. The method of claim 2, wherein the step S4 is further followed by:
and S5, reading the value of the HW Version by a start function of the real-time operating system, and subdividing the drive of the real-time operating system according to the value of the HW Version.
5. The method of claim 1, wherein the device tree in step S1 is located in a real-time operating system, and the information described by the device tree includes: the number and type of CPUs, base address and size of memory, buses and bridges, peripheral connections, interrupt controller and interrupt usage, GPIO controller and GPIO usage, and Clock controller and Clock usage.
6. A single soft multi-hard implementation terminal, comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, wherein the processor implements the following steps when executing the computer program:
s1, configuring the states of all the multi-supply peripherals in the equipment tree as no loading by default;
s2, starting a boot program to read the current preset pin voltage of the current equipment hardware, and acquiring the current hardware version corresponding to the current preset pin voltage according to the mapping relation between the preset pin voltage and the hardware version;
s3, setting the state of the peripheral corresponding to the current hardware version in the equipment tree to be loaded according to the current hardware version;
and S4, loading the driver corresponding to the peripheral equipment with the state needing to be loaded in the equipment tree by the real-time operating system.
7. The single-soft multi-hard implementation terminal according to claim 6, wherein the step S2 specifically includes:
starting a boot bootstrap program uboot or boot loader to read the current preset pin voltage of the current equipment hardware as an ADC voltage value, acquiring a HW Version value corresponding to the ADC voltage value according to the mapping relation between the ADC voltage value and the HW Version, and acquiring a current hardware Version according to the HW Version value corresponding to the ADC voltage value.
8. The single-soft multi-hard implementation terminal according to claim 7, wherein the current preset pin voltage of the current device hardware is a divided voltage of two resistors on the current device hardware, and a resistance value of the two resistors on the current device hardware is different from a resistance value of the two resistors on the device hardware of other hardware versions.
9. The single-soft multi-hard implementation terminal of claim 7, wherein the processor, when executing the computer program, further comprises after step S4:
and S5, reading the value of the HW Version by a start function of the real-time operating system, and subdividing the drive of the real-time operating system according to the value of the HW Version.
10. The terminal of claim 6, wherein the device tree in step S1 is located in a real-time operating system, and the information described by the device tree includes: the number and type of CPUs, base address and size of memory, buses and bridges, peripheral connections, interrupt controller and interrupt usage, GPIO controller and GPIO usage, and Clock controller and Clock usage.
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