embOS for Infineon C16x CPUs and KEIL compiler

embOS for Infineon C16x CPUs was developed for and with KEIL compiler and supports all memory models, except TINY.

It comes with an easy to use start project for KEIL uVision2 IDE. Software development with Simulator and ROM-Monitor is supported.
Fast interrupts supported since embOS version 3.10p.

Resources and performance data

Memory usage
Kernel size (ROM)	1536 bytes
Kernel RAM usage	27 bytes
RAM usage per task control block	18 bytes
RAM usage per resource semaphore	4 bytes
RAM usage per counting semaphore	2 bytes
RAM usage per mailbox	12 bytes
RAM usage per software timer	10 bytes
RAM usage event	0 bytes
Min. stack-size per task (RAM)	32 bytes
Timing
Context switch time	1248 clock cycles (62.4 µs), independent of number of tasks
Interrupt latency time (Fast interrupt)	max. 16 clock cycles (0.8 µs)
Kernel CPU usage/TICK	less than .5% of total calculation time at 1000 Interrupts/second (1ms TICK)
Basic time unit (TICK)	typ. 1 ms, min. 20 µs (50 kHz interrupt frequency)
Features
Max. no. of tasks	Unlimited (by available RAM only)
Max. no. of mailboxes	unlimited (by available RAM only)
Max. no. of semaphores (resource/binary/counting)	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)
Nested interrupts	permitted
Task switches from within ISR	possible

"Absolute data given above were measured with embOS release build on an C167 CPU running at 20MHz in SMALL memory model.

embOSView offers system analysis during runtime

embOSView with Infineon C167 CPU

Additional information

Release Notes embOS C16x for KEIL compiler