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FREERTOS的官方移植文档
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2010-01-12
张磊
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Features
The following standard features are provided.
• Choice of RTOS scheduling policy
1. Pre-emptive:
Always runs the highest available task. Tasks of identical priority
share CPU time (fully pre-emptive with round robin time slicing).
2. Cooperative:
Context switches only occur if a task blocks, or explicitly calls
taskYIELD().
• Co-routines (light weight tasks that utilise very little RAM).
• Message queues
• Semaphores [via macros]
• Trace visualisation ability (requires more RAM)
• Majority of source code common to all supported development tools
• Wide range of ports and examples
The following standard features are provided.
• Choice of RTOS scheduling policy
1. Pre-emptive:
Always runs the highest available task. Tasks of identical priority
share CPU time (fully pre-emptive with round robin time slicing).
2. Cooperative:
Context switches only occur if a task blocks, or explicitly calls
taskYIELD().
• Co-routines (light weight tasks that utilise very little RAM).
• Message queues
• Semaphores [via macros]
• Trace visualisation ability (requires more RAM)
• Majority of source code common to all supported development tools
• Wide range of ports and examples
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