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what is board support package in embedded system

what is board support package in embedded system

what is board support package in embedded system插图

In embedded systems, a board support package (BSPBoard support packageIn embedded systems, a board support package (BSP) is an implementation of specific support code (software) for a given (device motherboard) board that conforms to a given operating system. It is commonly built with a bootloader that contains the minimal device support to load the operating system and device drivers for all the devices on the board.en.wikipedia.org) is the layer of software containing hardware-specific drivers and other routines that allow a particular operating system to function in a particular hardware environment (a computer or CPU card), integrated with the O.S. itself.

What is board support package (BSP)?

In embedded system Board support package (BSP) is a layer of software containing hardware specific drivers and routines which allows real-time operating system to work under particular hardware system that may be computer or CPU card. The hardware system is integrated with RTOS itself.

How much does it cost to build an embedded board support package?

The board support package (BSP) is the glue software that allows an embedded real-time operating system ( RTOS) to run on a specific target board. Creating a BSP for your chosen board is a detailed software engineering task that takes 2 to 8 weeks. Expect an embedded software consultant to charge $20,000 to $100,000 for the work.

What is a aboard support package?

A board support package is one of the first software packages that is developed for use with a particular chip or its evaluation board.

What is BSP in embedded system?

What is BSP in Embedded System? In embedded system Board support package (BSP) is a layer of software containing hardware specific drivers and routines which allows real-time operating system to work under particular hardware system that may be computer or CPU card. The hardware system is integrated with RTOS itself.

Why is Linux used in BSP?

Linux is popular because as open source, it is “free” and therefore somewhat agnostic in terms of showing favoritism between the various semiconductor OS partners. Therefore, using a Linux BSP avoids showing any favoritism between OS vendors, especially if the semiconductor vendor is maintaining a branch of the Linux kernel tree for its own processor architecture.

What is a BSP file?

The BSP provides a file structure and will initialize several systems, including the processor, any communication buses, clocks, and memory, as well as start up the boot loader. The BSP may also initialize peripherals and set some environmental parameters for working with the embedded operating system (OS).

What is a BSP?

A Board Support Package (BSP) is used to start up and run the embedded target processor and is fundamental software for use with the evaluation board and its OOBE. The BSP does not include much more than what is needed to support a minimum number of peripherals on an eval board; only enough so that the user can at least demonstrate …

What is the BSP program called?

The BSP has a boot-up program called the “bootloader” or a boot manager , and there’s a different BSP for different operating systems since the BSP contains drivers that enable the peripherals to communicate with the operating system.

What is an evaluation board for a new processor?

Most semiconductor vendors will provide an evaluation board that you can use to evaluate whether or not you want to invest your time and money into that particular processor or processor family.

What is an evaluation board?

An evaluation or demo board is usually enough to get to know what it’s like to boot up, program, and test a snippet of example code on the new processor. The SDK is typically more involved and might be part of a system that includes add-on modules, but there is no standard term for any of these.

Do all boards have BSPs?

Not all boards have BSPs, however. The Yocto Project has a BSP developer’s guide for making BSPs, and states that the BSP “…is concerned with the hardware-specific components only. At the end-distribution point, you can ship the BSP combined with a build system and other tools.

What is a BSP file?

The BSP provides a file structure and will initialize several systems, including the processor, any communication buses, clocks, and memory, as well as start up the boot loader. The BSP may also initialize peripherals and set some environmental parameters for working with the embedded operating system (OS).

Why is VxWorks important?

Driver guidelines One strength of VxWorks is that it provides a high degree of architectural and hardware independence for application code because of this API. Application code and VxWorks can both migrate from one architecture to another because the BSP and related device drivers offer a consistent interface and modular design.

What is BSP carpet?

The BSP acts like this two-sided sticky tape attaching the embedded hardware to the operating system that uses it.

What is BSP in programming?

The BSP provides a common application programming interface (API) and a stable environment for the real-time operating system. The standard interface defines both BSP conventions and validation procedures.

What is target.nr?

There is a file named target.nr defined in the BSP documentation standards containing a list of technical features supported and unsupported for a particular COTS or reference board.

What is embedded system BSP?

In embedded system Board support package (BSP) is a layer of software containing hardware specific drivers and routines which allows real-time operating system to work under particular hardware system that may be computer or CPU card. The hardware system is integrated with RTOS itself.

What is board support?

A board support package is one of the first software packages that is developed for use with a particular chip or its evaluation board.

Why is RTOS BSP simplified?

The RTOS BSP is simplified because board specific target initialization code is eliminated from the RTOS BSP, being done instead by the hypervisor as it boots up . If the RTOS is expecting a specific target board, the hypervisor can even be configured to make a virtual machine emulate that target board.

How many BSPs does Zephyr RTOS support?

If a suitable BSP exists, they will typically provide it free of charge to enable a sale. The open-source Zephyr RTOS supports about 160 BSPs and VxWorks v7 lists 77 BSPs. In general, commercial RTOSs support fewer BSPs than open source OSes like Linux.

What is a BSP board?

The board support package (BSP) is the glue software that allows an embedded real-time operating system ( RTOS) to run on a specific target board. Creating a BSP for your chosen board is a detailed software engineering task that takes 2 to 8 weeks. Expect an embedded software consultant to charge $20,000 to $100,000 for the work. The task involves interfacing the RTOS to the new board’s memory layout as well as to a timer, a serial console, and a network interface, at least. The BSP is the foundation of your software, so it is important that it be high quality and support all the peripherals you need. This article will guide you through the minefield of getting the right BSP and suggest options to reduce or eliminate the cost.

What is the core challenge of BSPs?

The core challenge is that BSPs are a moving target—new processors, boards and RTOS versions come out all the time—so that RTOS vendors are forever playing catch-up.

Why is BSP important?

The BSP is the foundation of your software, so it is important that it be high quality and support all the peripherals you need. This article will guide you through the minefield of getting the right BSP and suggest options to reduce or eliminate the cost.

What is a device tree?

A device tree is a machine readable hardware catalogue with the potential to further automate the creation of BSPs. It is a data structure that describes the hardware components of a target board so that an operating system (OS)—typically Linux—can run on it. The normal use of a device tree file is to pass it to a bootloader that loads it, along with a Linux kernel image, in order to boot Linux. Since Linux is usually the first OS ported to new boards, those new boards all come with pre-written device tree files. Lynx MOSA.ic? takes advantage of device trees to further reduce BSP costs. The internals of Lynx MOSA.ic? are built to support specific SoCs, but in addition, it reads device tree files to automatically account for differences between boards using the same SoC. In combination, this means Lynx MOSA.ic? is able to automatically generate binary code to boot target boards without requiring a BSP for those boards. Lynx MOSA.ic? first reads the device tree file to build a hardware catalog, then, using an architecture description language, an engineer assigns those hardware resources to create virtual machines ready for guest software workloads. Lynx MOSA.ic? auto-generates the bootcode and virtual machine creation code, combining them together with guest images into a single executable file that can be launched by the boot loader.

What to consider when paying for a BSP?

Other considerations when paying for a BSP are who owns it, who supports it, and who maintains it in the future. An RTOS vendor certainly has the expertise to build you a BSP for their RTOS and—as long as your board is not completely niche—they will likely be keen to support it and maintain it going forward. Of course, they will want to offer it to other customers as well. Do consider what happens when your RTOS moves to the next version; unless your board is incredibly popular, your RTOS vendor is unlikely to port it forward to their new version.