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ISO 9001 certified


embOS for SH2 was developed for and with Renesas' HEW compiler.
It comes with a ready to go start project that runs on a RENESAS SH7086 eval kit.


Pricing Trial download Notification Subscribe to embOS software notification Release Notes


Resources and performance data

Memory usage
Kernel size (ROM) Approx. 4 Kbytes
Kernel RAM usage 51 bytes
RAM usage per task control block 32 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) 152 bytes
Context switch time 5.8 µs @ 80MHz
Interrupt latency time 0
Kernel CPU usage/TICK Less than .1% 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 SH2 CPU running at 80 MHz.


Board support packages

embOS comes with lots of ready to go start projects and support packages for various Renesas SH2 CPUs and starterboards.

CPU Eval board
Renesas SH7086 Renesas SH7086 evalboard