S32KのトピックRe: OSIF_MutexLock in ISR https://community.nxp.com/t5/S32K/OSIF-MutexLock-in-ISR/m-p/1026428#M6387 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>This functions can't be used&nbsp;in an ISR, you need to use the functions&nbsp;xSemaphoreGiveFromISR to release the semaphore, also I will suggest to not use lock functions in an ISR since the IRQ needs to be the shortest possible.</P><P></P><P>The usual approach is to use a semaphore/mutex take in the task to lock a peripheral or coordinate the tasks and use the give in the ISR to release the peripheral.</P><P></P><P>Best Regards,</P><P>Alexis Andalon&nbsp;</P></BODY></HTML> Wed, 01 Apr 2020 16:19:22 GMT Alexis_A 2020-04-01T16:19:22Z OSIF_MutexLock in ISR https://community.nxp.com/t5/S32K/OSIF-MutexLock-in-ISR/m-p/1026427#M6386 <HTML><HEAD></HEAD><BODY><P>Hi, everyone,</P><P>I use the SDK 3.0.0, Can I use the API&nbsp;OSIF_MutexLock and&nbsp;OSIF_MutexUnlock in ISR.</P><P>If not, how can I lock and unlock the shared resource in ISR?</P><P>Thanks very much.</P></BODY></HTML> Fri, 27 Mar 2020 05:48:10 GMT https://community.nxp.com/t5/S32K/OSIF-MutexLock-in-ISR/m-p/1026427#M6386 赵子成 2020-03-27T05:48:10Z Re: OSIF_MutexLock in ISR https://community.nxp.com/t5/S32K/OSIF-MutexLock-in-ISR/m-p/1026428#M6387 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>This functions can't be used&nbsp;in an ISR, you need to use the functions&nbsp;xSemaphoreGiveFromISR to release the semaphore, also I will suggest to not use lock functions in an ISR since the IRQ needs to be the shortest possible.</P><P></P><P>The usual approach is to use a semaphore/mutex take in the task to lock a peripheral or coordinate the tasks and use the give in the ISR to release the peripheral.</P><P></P><P>Best Regards,</P><P>Alexis Andalon&nbsp;</P></BODY></HTML> Wed, 01 Apr 2020 16:19:22 GMT https://community.nxp.com/t5/S32K/OSIF-MutexLock-in-ISR/m-p/1026428#M6387 Alexis_A 2020-04-01T16:19:22Z