- Small-footprint (small as 2KB, automatic scaling)
- Fast execution (sub microsecond context switch)
- Supports all popular processors and tools (see below)
- TraceX system analysis support
- Advanced Technology:
- Preemption-Threshold™
- Event Chaining™
- Performance Metrics
- Execution Profiling
- Run-time and Static Stack Analysis
- Multicore Support (SMP and AMP)
- Downloadable Application Modules
- Memory Protection for Downloadable Application Modules
- Extensive ThreadX ecosystem
- Safety Certifications (DO-178B, FDA510(k), IEC61508, etc)
- Deployed in over 1,000,000,000 devices
- Full Source Code
- Royalty-Free
- ARM
- Atmel
- BlackFin
- CEVA-TeakLite-III
- ColdFire/68K
- Critical Link MityDSP/MityARM
- Energy Micro EFM32
- Freescale
- Fujitsu FM3
- G-Series
- Hitachi H8/300H
- Infineon XMC
- Leon3
- M-CORE
- MicroBlaze
- Microchip PIC24/dsPIC
- Microchip PIC32
- MIPS
- Nios II
- NXP
- Power Architecture
- Renesas RX
- Renesas SH
- Renesas V8xx
- SHARC
- ST Microelectronics STM32
- StarCore
- StrongARM
- Synopsys ARC
- TI ARM
- TI MSP430
- TMS320C54x
- TMS320C6x
- Univers A2P
- Win32
- x86/x386
- Xilinx ARM
- XScale
- Xtensa/Diamond
Hitachi H8/300H
ThreadX for H8/300H
Highlights
Complete H8/300H Advanced Mode support Hitachi Development Tool Support Reasonable pricing No Royalties Complete ANSI C source code Easy to use and powerful services Responsive Technical Support Unlimited Threads, Queues, Event Flags, Timers, Semaphores, Mutexes, Block Pools, and Byte Pools Flexible memory usage Timeout available on all thread suspension Advanced preemption-threshold technique Low-overhead Application Timers Size scales automatically Picokernel architecture for size and speed
Improve Your H8/300H Development
Let our extensive experience with the H8/300H family of microprocessors help your product development. ThreadX, our high-performance real-time kernel, helps improve your product's quality and its time-to-market. In addition, using ThreadX makes it easier to enhance your product in the future.
H8/300H Optimizations
ThreadX optimizes context switching on the H8/300H. When context switching occurs inside of a ThreadX service call, only the registers preserved across function calls are saved as part of the thread's context, i.e. registers ER2-ER6.
A similar technique is used in interrupt handling. On the front end of interrupt service routines, only the compiler's scratch registers are saved initially (registers ER0-ER1). The full register set is saved only if thread preemption is required.
