1. Basic specifications of HW-RTOS
The basic specifications of HW-RTOS in the R-IN32, RZ-T1, and RZ-N1 Series are as follows.
| Item | Specifications |
|---|---|
| Tasks | 64 |
| ISRs | 1 |
| Interrupts | 1 |
| Interrupts for HW ISR | 32 |
| Priority levels | 15 |
| Tick intervals | Programmable every 1 us from 10 us to 100 ms |
| Semaphore ID | 128 |
| Event flag ID | 64 |
| Mail box ID | 64 |
2. API
| Category | API call | Remarks |
|---|---|---|
| Start/end task | Terminate task (self), Terminate other task, Start task | |
| Event flag | Wait for event flag, Set event flag, Clear event flag | Optional timeout and polling |
| Semaphore | Acquire semaphore resource, Release semaphore resource | Optional timeout and polling |
| Mail box | Receive from mail box, Send to mail box | Optional timeout and polling |
| Wakeup | Wait for wakeup, Wakeup task | Optional timeout |
| Priority | Change task priority, Rotate task priority | |
| Other | Release waiting, Enter CPU locked state, Release CPU locked state, Disable dispatch, Enable dispatch |
3. HW ISR
In the HW ISR, the following APIs can be set programmably to correspond to interrupt signals.
- Set event flag
- Release semaphore resource
- Wakeup
- Release wait state
