September 2011
Intermediate to advanced
744 pages
19h 4m
English
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DEVELOPING A BSP
This section outlines some of the issues with developing a new BSP from an existing one. The “White Papers” referred to at the start of this chapter provide details for BSP development and porting.
Developing a new BSP is generally not a simple task. To do so requires a lot of background knowledge and experience with Windows Embedded Compact. A simpler task is to adapt an existing BSP for a similar target by cloning it, implementing the bootloader and OAL, customizing the configuration, and adding any new drivers or replacing any that are different.
Cloning a BSP
As covered previously, a BSP for a board that has the same CPU and similar components can be cloned. This creates a new folder under the platform folder for the new BSP. Only modify code under this copied folder. Do not modify any other code because this can break other aspects of Platform Builder. Cloning a BSP was covered in Chapter 6.
Implement Bootloader and OAL
If the new target hardware is similar to the existing BSP’s hardware, then the same bootloader might work. If this is not sufficient, the bootloader code might (hopefully) need only some small reconfiguration and rebuilding. You do, however, need to get this working first. If the task requires a major effort, then the bootloader architecture CE Boot might be a better option.
Customize Configuration
Customize the memory configuration, interrupts, any GPIO, peripherals, and system initialization requirements.
Add Drivers
Add the drivers that ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.