While ridiculously fast, it did have its limitations. Chipset support for two chipsets is open. The platform HAL can override these definitions if platform-specific macros are more appropriate. Implementing new chipset modules requires more experience. Chipset modules are licensed for a one-time fee rather than a unit royalty. Features not needed or desired for embedded use have been left out.
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This macro executes a hlt instruction, suspending the CPU until the next interrupt and thus reducing power consumption. It should be read in conjunction with similar sections from the architectural and platform HAL documentation. The central processor is largely compatible and can run at up to MHz. The platform HAL determines the default clock atoas, and can override any of these definitions if required.
In an attempt to reduce confusion various suffixes are used, and in some cases utility macros are provided to access the registers:. The package does not contain any configuration options. The platform HAL can override these definitions if platform-specific macros are more appropriate. Implementing new chipset modules requires more experience.
Features not needed or desired for embedded use have been left out. Some are based on information that was provided to me by chip manufacturers under non-disclosure agreements. Chipset support for two chipsets is open.
Small size 16 to 32 KB means more space for your application. The implementation uses the processor’s PIT0 timer since that is the only on-chip timer which can generate interrupts.
Linux gpio driver for stpc atlas – Free Download –
It is intended for use in embedded systems. I consider the CPL to be a flexible, well-written license. Access to source code means ease of adaptation and debugging.
Less code around lines – easier to understand and navigate.
Embedded Industrial Motherboard,Half-Size card, STPC Atlas SOC,PC/104 connector, PC/104-Plus
A is the closest replacement I could find, easy to get through www. STPC Atlas registers can be accessed in a variety of ways. While ridiculously fast, it did have its limitations. Not recommended for new designs – please consider coreboot as an alternative.
Anyone atpas implement and publish their own chipset modules. No more ” keyboard failure – press F1 to continue ” errors. Your time is worth more than that. In an attempt to reduce confusion various suffixes are used, and in some cases utility macros are provided to access the registers: I will gladly refer customers to them, or add them to the open source code base.
It is up to the platform HAL to define the interrupt vector numbers. Unloading the package should only happen as a side effect of switching target hardware. The BIOS core is less than lines of assembly code, very manageable.
When the variant HAL’s clock macros are enabled the package will also provide profiling timer support. Implementing this in C would be very cumbersome. The platform HAL can override this definition if necessary. An eCos configuration for an STPC Atlas-based platform should atla include a platform HAL package to support board-level details like the nature of the external memory chips.
It should never be necessary to load this package explicitly. Chipset modules are licensed for a one-time fee rather than a unit royalty.