HAL counter API (changes)

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Hardware Abstraction Layer

» List of HAL APIs

» HAL counter API

The HAL must supply a counter that varies rapidly, appropriate for use for sub-millisecond timing. On many systems, this counter will form part of timer 0 – as such it is not required to operate when timer 0 is not running. On other systems, the periodic timers may have no readable latch, and a separate unit will be required.

The counter should count down from (period-1) to 0 continuously.

Entry points

• HAL_CounterRate
• HAL_CounterPeriod
• HAL_CounterRead
• HAL_CounterDelay

Information source: Kernel.Docs.HAL.HAL_API in CVS