len0rd/FreeRTOS-Kernel
1
0
Fork 0
mirror of https://github.com/FreeRTOS/FreeRTOS-Kernel.git synced 2025-08-19 17:48:33 -04:00
Code Issues Projects Releases Packages Wiki Activity

Interrupt priority assert improvements for CM3/4/7 (#602)

Browse source 
* Interrupt priority assert improvements for CM3/4/7

In the ARM_CM3, ARM_CM4, and ARM_CM7 ports, change the assertion that
`configMAX_SYSCALL_INTERRUPT_PRIORITY` is nonzero to account for the
number of priority bits implemented by the hardware.

Change these ports to also use the lowest priority for PendSV and
SysTick, ignoring `configKERNEL_INTERRUPT_PRIORITY`.

* Remove not needed configKERNEL_INTERRUPT_PRIORITY define

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>

---------

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>
Co-authored-by: Gaurav-Aggarwal-AWS <33462878+aggarg@users.noreply.github.com>
Co-authored-by: Gaurav Aggarwal <aggarg@amazon.com>
This commit is contained in:
Chris Copeland 2023-03-02 09:49:56 -08:00 • committed by GitHub
parent c3e1df031e
commit a9e1f66849
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
18 changed files with 180 additions and 116 deletions
Download patch file Download diff file Expand all files Collapse all files

7
portable/Tasking/ARM_CM4F/port.c
View file

@ -41,8 +41,9 @@
#define portNVIC_SYSTICK_CLK 0x00000004
#define portNVIC_SYSTICK_INT 0x00000002
#define portNVIC_SYSTICK_ENABLE 0x00000001
#define portNVIC_PENDSV_PRI ( ( ( uint32_t ) configKERNEL_INTERRUPT_PRIORITY ) << 16 )
#define portNVIC_SYSTICK_PRI ( ( ( uint32_t ) configKERNEL_INTERRUPT_PRIORITY ) << 24 )
#define portMIN_INTERRUPT_PRIORITY ( 255UL )
#define portNVIC_PENDSV_PRI ( ( ( uint32_t ) portMIN_INTERRUPT_PRIORITY ) << 16UL )
#define portNVIC_SYSTICK_PRI ( ( ( uint32_t ) portMIN_INTERRUPT_PRIORITY ) << 24UL )
/* Masks off all bits but the VECTACTIVE bits in the ICSR register. */
#define portVECTACTIVE_MASK ( 0xFFUL )
@ -70,7 +71,7 @@
/* The priority used by the kernel is assigned to a variable to make access
* from inline assembler easier. */
const uint32_t ulKernelPriority = configKERNEL_INTERRUPT_PRIORITY;
const uint32_t ulKernelPriority = portMIN_INTERRUPT_PRIORITY;
/* Each task maintains its own interrupt status in the critical nesting
* variable. */