Good point. Can you see the screenshot I sent earlier about why using RTOS for a BLDC, or the video on this page: https://zephyrproject.org/zephyr-rtos-for-power-electronics/ , the time is about 7:13
On Wed, Sep 7, 2022 at 12:33 PM Peter B <pe...@awsmtek.com> wrote: > Why do not to use baremetal DSP core communicating with application core > running RTEMS? > > On Wed, Sep 7, 2022, 6:28 AM Y. HB <sprh...@gmail.com> wrote: > >> Right, I did think RTEMS may be an overkill for it. But it is only open >> source RTOS qualified in the aerospace area. >> >> On Wed, Sep 7, 2022 at 3:22 AM Peter B <pe...@awsmtek.com> wrote: >> >>> Interesting. I use ChibiOS in some projects and I know it is tiny in >>> comparison with RTEMS. >>> In the case of RTEMS I think it is better to run the control loop on a >>> separate core rather than upon a RTEMS task. >>> Let RTEMS experts fix me if I am wrong. >>> >>> Best regards. >>> Peter Borisenko >>> Awesome Technologies, Ltd. >>> http://awsmtek.com >>> +66826684211 >>> >>> >>> On Tue, Sep 6, 2022 at 7:04 AM Y. HB <sprh...@gmail.com> wrote: >>> >>>> Hello Peter: >>>> >>>> the open sourced VESC https://github.com/vedderb/bldc is using ChibiOS >>>> Following is using ZephyrOS, >>>> >>>> >>>> >>>> On Tue, Sep 6, 2022 at 2:11 AM Peter B <pe...@awsmtek.com> wrote: >>>> >>>>> Why do anyone even think of using an OS on such devices like the BLDC >>>>> Motor driver? >>>>> What's the point? >>>>> >>>>> Best regards. >>>>> Peter Borisenko >>>>> Awesome Technologies, Ltd. >>>>> http://awsmtek.com >>>>> +66826684211 >>>>> >>>>> >>>>> On Mon, Sep 5, 2022 at 9:07 PM Sebastian Huber < >>>>> sebastian.hu...@embedded-brains.de> wrote: >>>>> >>>>>> On 05/09/2022 15:55, Y. HB wrote: >>>>>> > I see zephyr provided a "Zero-Latency interrupt" facility to do >>>>>> with >>>>>> > near bare metal performance interrupt handler, and a talk is about >>>>>> > using Zero-Latency Interrupts feature to make a ESC with ZephyRTOS. >>>>>> >>>>>> A "zero-latency interrupt" in Zephyr is just an interrupt which has a >>>>>> higher priority than the interrupts managed by Zephyr. You cannot use >>>>>> operating system services in such an interrupt. >>>>>> >>>>>> > >>>>>> > Is rtems good enough to do the same thing? >>>>>> >>>>>> For ARMv7-M yes, the lower priority half of interrupt priorities is >>>>>> managed by RTEMS, the higher priority half can be used for such >>>>>> "zero-latency interrupts". >>>>>> >>>>>> For ARMv7-AR, the FIQ can be used. >>>>>> >>>>>> -- >>>>>> embedded brains GmbH >>>>>> Herr Sebastian HUBER >>>>>> Dornierstr. 4 >>>>>> 82178 Puchheim >>>>>> Germany >>>>>> email: sebastian.hu...@embedded-brains.de >>>>>> phone: +49-89-18 94 741 - 16 >>>>>> fax: +49-89-18 94 741 - 08 >>>>>> >>>>>> Registergericht: Amtsgericht München >>>>>> Registernummer: HRB 157899 >>>>>> Vertretungsberechtigte Geschäftsführer: Peter Rasmussen, Thomas >>>>>> Dörfler >>>>>> Unsere Datenschutzerklärung finden Sie hier: >>>>>> https://embedded-brains.de/datenschutzerklaerung/ >>>>>> _______________________________________________ >>>>>> users mailing list >>>>>> users@rtems.org >>>>>> http://lists.rtems.org/mailman/listinfo/users >>>>> >>>>>
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