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ISO 9001 certified

ARM7/9, GNU Altera

embOS for GNU Altera was developed for and with the Eclipse DS-5 IDE and the SoC Embedded Design Suite V14. It comes with an easy to use start project for the Eclipse DS-5 IDE.


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Resources and performance data

Memory usage
Kernel size (ROM) Approx. 1700 bytes
Kernel RAM usage 44 bytes
RAM usage per task control block 52 bytes
RAM usage per resource semaphore 16 bytes
RAM usage per counting semaphore 8 bytes
RAM usage per mailbox 24 bytes
RAM usage per software timer 20 bytes
RAM usage event 0 bytes
Min. stack-size per task (RAM) 68 bytes
Context switch time 0.3 µs
Interrupt latency time Zero
Kernel CPU usage/TICK Less than .2% of total calculation time at 1000 interrupts/second (1ms TICK)
Basic time unit (TICK) Typ. 1 ms, min. 20 µs (50 kHz interrupt frequency)
Max. no. of tasks Unlimited (by available RAM only)
Max. no. of mailboxes Unlimited (by available RAM only)
Max. no. of semaphores Unlimited (by available RAM only)
Max. no. of software timers Unlimited (by available RAM only)
Max. no. of priorities Unlimited
Stack size idle task (RAM) 0 (no memory needed)
Nested interrupts Permitted
Task switches from within ISR Possible

Absolute values given above were measured with embOS release build on an Altera Cyclone V SoC running at 800MHz.

Board support packages

embOS comes with ready to go start projects and support packages for ARM7/9 CPUs and starterboards.

CPU Eval board
Altera Cyclone V SoC SoCrates - Cyclone V SoC Evaluation Board