I saw that page. I thought ethernet is most important task after RTOS internal
working. So I set it to 6 (could be 5 since it can be equal but to be safe
side)And I thought I should set other priorities below that so i set USART to 7;
So all I need is set interrupt priorities above 5 for all interrupts I created;
I guess.
On Monday, August 22, 2016 3:14 PM, FreeRTOS Info <[email protected]>
wrote:
On 22/08/2016 13:00, Erkan Ersoy wrote:
> Thank you Noam;
>
> Somethings are confusing but i think i get it
Yes, confusing.
> #define configKERNEL_INTERRUPT_PRIORITY (
> configLIBRARY_LOWEST_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )
> #define configMAX_SYSCALL_INTERRUPT_PRIORITY (
> configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )
>
> those values are
> configKERNEL_INTERRUPT_PRIORITY : 240
> configMAX_SYSCALL_INTERRUPT_PRIORITY: 80
Those values are used by FreeRTOS itself, which is portable across all
ARM Cortex devices, which have varying number of implemented priority
bits (in hardware).
>
> but they never used those defines so they used only values above 5
> without defines. Those defines stay there idle.
Some libraries want the full 8 bit values (which is how the hardware
always sees the values), other libraries want unshifted values.
> I use 6 for ethernet interrupt and 7 for USART interrupt now it seems
> work fine
So 7 have a logically lower priority, despite being a higher numeric value.
The following link may make things clearer, or alternatively, murkier :o)
http://www.freertos.org/RTOS-Cortex-M3-M4.html
Regards,
Richard.
+ http://www.FreeRTOS.org
The de facto standard, downloaded every 4.2 minutes during 2015.
+ http://www.FreeRTOS.org/plus
IoT, Trace, Certification, TCP/IP, FAT FS, Training, and more...
_______________________________________________
lwip-users mailing list
[email protected]
https://lists.nongnu.org/mailman/listinfo/lwip-users
_______________________________________________
lwip-users mailing list
[email protected]
https://lists.nongnu.org/mailman/listinfo/lwip-users
