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Add ehb instructions back into PIC32 port layer (upon advice).

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Add configCLEAR_TICK_TIMER_INTERRUPT into PIC32 port layer to allow the timer configuration to be changed without any edits to the port layer being required.
Add prvTaskExitError() into the PIC32 port layer to trap tasks that attempt to exit from their implementing function.
Provide the ability to trap interrupt stack overflows in the PIC32 port.
Radically improve the timing in the Win32 simulator port layer.
This commit is contained in:
Richard Barry 2013-11-07 14:16:32 +00:00
parent 40d2e74417
commit 30bc6c01a9
5 changed files with 218 additions and 80 deletions
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25
FreeRTOS/Source/portable/MPLAB/PIC32MX/portmacro.h
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@ -74,7 +74,7 @@ extern "C" {
#endif
/*-----------------------------------------------------------
* Port specific definitions.
* Port specific definitions.
*
* The settings in this file configure FreeRTOS correctly for the
* given hardware and compiler.
@ -104,7 +104,7 @@ extern "C" {
/* Hardware specifics. */
#define portBYTE_ALIGNMENT 8
#define portSTACK_GROWTH -1
#define portTICK_RATE_MS ( ( portTickType ) 1000 / configTICK_RATE_HZ )
#define portTICK_RATE_MS ( ( portTickType ) 1000 / configTICK_RATE_HZ )
/*-----------------------------------------------------------*/
/* Critical section management. */
@ -112,11 +112,11 @@ extern "C" {
#define portALL_IPL_BITS ( 0x3fUL << portIPL_SHIFT )
#define portSW0_BIT ( 0x01 << 8 )
/* This clears the IPL bits, then sets them to
configMAX_SYSCALL_INTERRUPT_PRIORITY. An extra check is performed if
configASSERT() is defined to ensure an assertion handler does not inadvertently
attempt to lower the IPL when the call to assert was triggered because the IPL
value was found to be above configMAX_SYSCALL_INTERRUPT_PRIORITY when an ISR
/* This clears the IPL bits, then sets them to
configMAX_SYSCALL_INTERRUPT_PRIORITY. An extra check is performed if
configASSERT() is defined to ensure an assertion handler does not inadvertently
attempt to lower the IPL when the call to assert was triggered because the IPL
value was found to be above configMAX_SYSCALL_INTERRUPT_PRIORITY when an ISR
safe FreeRTOS API function was executed. ISR safe FreeRTOS API functions are
those that end in FromISR. FreeRTOS maintains a separate interrupt API to
ensure API function and interrupt entry is as fast and as simple as possible. */
@ -129,7 +129,7 @@ ensure API function and interrupt entry is as fast and as simple as possible. */
ulStatus = _CP0_GET_STATUS(); \
\
/* Is the current IPL below configMAX_SYSCALL_INTERRUPT_PRIORITY? */ \
if( ( ( ulStatus & portALL_IPL_BITS ) >> portIPL_SHIFT ) < configMAX_SYSCALL_INTERRUPT_PRIORITY ) \
if( ( ( ulStatus & portALL_IPL_BITS ) >> portIPL_SHIFT ) < configMAX_SYSCALL_INTERRUPT_PRIORITY ) \
{ \
ulStatus &= ~portALL_IPL_BITS; \
_CP0_SET_STATUS( ( ulStatus | ( configMAX_SYSCALL_INTERRUPT_PRIORITY << portIPL_SHIFT ) ) ); \
@ -200,13 +200,10 @@ unsigned long ulCause; \
_CP0_SET_CAUSE( ulCause ); \
}
#ifdef configASSERT
#define portCURRENT_INTERRUPT_PRIORITY ( ( _CP0_GET_STATUS() & portALL_IPL_BITS ) >> portIPL_SHIFT )
#define portASSERT_IF_INTERRUPT_PRIORITY_INVALID() configASSERT( portCURRENT_INTERRUPT_PRIORITY <= configMAX_SYSCALL_INTERRUPT_PRIORITY )
#endif /* configASSERT */
#define portCURRENT_INTERRUPT_PRIORITY ( ( _CP0_GET_STATUS() & portALL_IPL_BITS ) >> portIPL_SHIFT )
#define portASSERT_IF_INTERRUPT_PRIORITY_INVALID() configASSERT( portCURRENT_INTERRUPT_PRIORITY <= configMAX_SYSCALL_INTERRUPT_PRIORITY )
#define portNOP() asm volatile ( "nop" )
#define portNOP() __asm volatile ( "nop" )
/*-----------------------------------------------------------*/