May 2018
Intermediate to advanced
324 pages
8h 45m
English
Content preview from Embedded Systems Architecture
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Memory model and address space
The total amount of available addresses depends on the size of memory pointers. 32-bit machines can reference a contiguous memory space of 4 GB, which is segmented to host all the memory-mapped devices in the system. This may include:
- Internal RAM
- Flash memory
- System control registers
- Components internal to the microcontroller
- External peripheral bus
- Additional external RAM
Every region has a fixed physical address that may depend on the characteristics of the platform. All the locations are hardcoded, and some of them are platform-specific.
In the ARM Cortex-M, the total addressable space is divided into six macro regions. Depending on their purpose, the regions have different permissions, so that there are ...
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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.
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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.