embOS for SH2A was developed for and with IAR compiler.
It comes with easy to use start projects for IAR Embedded Workbench.
|Pricing||Trial download||Subscribe to embOS software notification||Release Notes|
Resources and performance data
|Kernel size (ROM)||Approx. 2000 Bytes|
|Kernel RAM usage||75 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)||Approx. 70/160 bytes (without/with FPU)|
|Context switch time||0.7 µs|
|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)|
|Task switches from within ISR||Possible|
Absolute values given above were measured with embOS XRelease build on an SH2A CPU running at 266 MHz.
Board support packages
embOS comes with lots of ready to go start projects and support packages for various SH2A CPUs and starterboards.
|Renesas SH7203||Renesas RSKSH7203|
|Renesas SH2A7269||Renesas RSKSH2A7269|
|Renesas SH7267||Renesas SH7267 CPU board|