embOS for Texas Instruments MSP430 & MSP430x was developed for and with IAR's compiler V5.52A but can be used with V5.x or V6.x also. It supports nearly all memory models offered by the IAR compiler.
It comes with easy to use start workspaces and start projects for the IAR Embedded Workbench.
Software development with CSpy simulator or MSP430 Flash Emulation Tool using CSpy is supported.
|Pricing||Trial download||Subscribe to embOS software notification||Release Notes|
Resources and performance data
|Kernel size (ROM)||1700 bytes|
|Kernel RAM usage||47 bytes|
|RAM usage per task control block||12 bytes|
|RAM usage per resource semaphore||8 bytes|
|RAM usage per counting semaphore||4 bytes|
|RAM usage per mailbox||14 bytes|
|RAM usage per software timer||12 bytes|
|RAM usage event||0 bytes|
|Min. stack-size per task (RAM)||28 bytes|
|Context switch time||201 clock cycles (201.0 µs), independent of number of tasks|
|Interrupt latency time||Max. 162 clock cycles (162.0 µs)|
|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. 100 µs (10 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||255|
|Stack size idle task (RAM)||0 (no memory needed)|
|Task switches from within ISR||Possible|
Absolute data given above were measured with embOS release build on an MSP430F5659 CPU running at 1.05 MHz.
Board support packages
embOS comes with lots of ready to go start projects and support packages for various MSP430/430x CPUs and starterboards.
|TI MSP430F149||TI MSP430F149 evalboard|
|TI MSP430F5529||TI MSP-TS430PN80USB|
|TI MSP430F5659||TI MSP-TS430PZ100USB|
|TI MSP430FG4619||TI FG2 4804|
|TI XMS430F5438||TI MSP-TS430PZ100F54|