C166 datasheet(3/3 Pages) ARM

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Real-time operating systems for C166 devices

https://developer.arm.com/documentation/107724/latest

C166 RTOS Comparison Table

Key: ● Included

○ Not included

Product

ARTX-166

RTX166 Tiny

Kernel Source Code

●

Flash File System

●

○

TCP/IP Stack

●

○

Multitasking

Round-Robin

●

Preemptive

●

○

Cooperative

●

Task Specifications

Priority Levels

256

Defined Tasks (max)

256

Active Tasks (max)

256

Context Switch Time

< 25 µsec (At 20 MHz)

400 – 4,000 states

Interrupt Latency

0.2 µsec (At 20 MHz)

4.0 µsec (At 20 MHz)

Memory Requirements

CODE Space

4 Kbyte

1.5 Kbyte

RAM Space

≈ 500 byte min.

8 byte

+ 4 byte per task

Timers/Signals/Events

Timeouts

●

Intervals

●

User Timers (max.)

Unlimited

○

Signals

●

Signals (max.)

16 per task

1 per task

Timers Used

0 – 8

0 – 6

System Clock Divisor

1,000 – 4,000

250 – 65,535

Inter-Task Communication

Semaphores (Counting)

●

○

Semaphores (max.)

Unlimited

○

Mailboxes

●

○

Mailboxes (max.)

Unlimited

○

Mailbox Size

Unlimited (default: 20)

○

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