diff options
| author | henryk <henryk@6dc7ffe9-61d6-0310-9af1-9938baff3ed1> | 2007-12-04 18:00:34 +0000 |
|---|---|---|
| committer | henryk <henryk@6dc7ffe9-61d6-0310-9af1-9938baff3ed1> | 2007-12-04 18:00:34 +0000 |
| commit | bc63ec765eb2597047132c00d5cfc925fdec95c5 (patch) | |
| tree | 6bdac5b20e4c3c3749b3baa814bf88e8b83b6037 /openpicc | |
| parent | 6e248045ac872b76f984452878dd795b251d93f7 (diff) | |
Add (#ifdef'ed out) code to measure critical section timing with an LED
git-svn-id: https://svn.openpcd.org:2342/trunk@370 6dc7ffe9-61d6-0310-9af1-9938baff3ed1
Diffstat (limited to 'openpicc')
| -rw-r--r-- | openpicc/config/FreeRTOSConfig.h | 3 | ||||
| -rw-r--r-- | openpicc/os/core/ARM7_AT91SAM7S/portISR.c | 7 |
2 files changed, 9 insertions, 1 deletions
diff --git a/openpicc/config/FreeRTOSConfig.h b/openpicc/config/FreeRTOSConfig.h index e4de597..2cfd18f 100644 --- a/openpicc/config/FreeRTOSConfig.h +++ b/openpicc/config/FreeRTOSConfig.h @@ -63,6 +63,9 @@ #define configUSE_16_BIT_TICKS 0 #define configIDLE_SHOULD_YIELD 1 +//#define configDEBUG_CRITICAL_TIMING AT91C_PIO_PA12 +#define configDEBUG_CRITICAL_TIMING 0 + /* Co-routine definitions. */ #define configUSE_CO_ROUTINES 0 #define configMAX_CO_ROUTINE_PRIORITIES ( 2 ) diff --git a/openpicc/os/core/ARM7_AT91SAM7S/portISR.c b/openpicc/os/core/ARM7_AT91SAM7S/portISR.c index 6f92c24..ec8d3d4 100644 --- a/openpicc/os/core/ARM7_AT91SAM7S/portISR.c +++ b/openpicc/os/core/ARM7_AT91SAM7S/portISR.c @@ -209,7 +209,9 @@ vPortEnterCritical (void) "ORR R0, R0, #0x80 \n\t" /* Disable IRQ, don't disable FIQ. */ "MSR CPSR, R0 \n\t" /* Write back modified value. */ "LDMIA SP!, {R0}"); /* Pop R0. */ - +#ifdef configDEBUG_CRITICAL_TIMING + *AT91C_PIOA_CODR = configDEBUG_CRITICAL_TIMING; +#endif /* Now interrupts are disabled ulCriticalNesting can be accessed directly. Increment ulCriticalNesting to keep a count of how many times portENTER_CRITICAL() has been called. */ @@ -228,6 +230,9 @@ vPortExitCritical (void) re-enabled. */ if (ulCriticalNesting == portNO_CRITICAL_NESTING) { +#ifdef configDEBUG_CRITICAL_TIMING + *AT91C_PIOA_SODR = configDEBUG_CRITICAL_TIMING; +#endif /* Enable interrupts as per portEXIT_CRITICAL(). */ asm volatile ("STMDB SP!, {R0} \n\t" /* Push R0. */ "MRS R0, CPSR \n\t" /* Get CPSR. */ |