diff options
Diffstat (limited to 'FreeRTOS/Demo/RX600_RX63N-RSK_Renesas/RTOSDemo/HighFrequencyTimerTest.c')
| -rw-r--r-- | FreeRTOS/Demo/RX600_RX63N-RSK_Renesas/RTOSDemo/HighFrequencyTimerTest.c | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/FreeRTOS/Demo/RX600_RX63N-RSK_Renesas/RTOSDemo/HighFrequencyTimerTest.c b/FreeRTOS/Demo/RX600_RX63N-RSK_Renesas/RTOSDemo/HighFrequencyTimerTest.c deleted file mode 100644 index 60b169e80..000000000 --- a/FreeRTOS/Demo/RX600_RX63N-RSK_Renesas/RTOSDemo/HighFrequencyTimerTest.c +++ /dev/null @@ -1,144 +0,0 @@ -/*
- * FreeRTOS Kernel V10.1.0
- * Copyright (C) 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of
- * this software and associated documentation files (the "Software"), to deal in
- * the Software without restriction, including without limitation the rights to
- * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
- * the Software, and to permit persons to whom the Software is furnished to do so,
- * subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
- * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
- * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * http://www.FreeRTOS.org
- * http://aws.amazon.com/freertos
- *
- * 1 tab == 4 spaces!
- */
-
-/*
- * High frequency timer test as described in main.c.
- */
-
-/* Scheduler includes. */
-#include "FreeRTOS.h"
-
-/* Hardware specifics. */
-#include "iodefine.h"
-
-/* The set frequency of the interrupt. Deviations from this are measured as
-the jitter. */
-#define timerINTERRUPT_FREQUENCY ( 20000UL )
-
-/* The expected time between each of the timer interrupts - if the jitter was
-zero. */
-#define timerEXPECTED_DIFFERENCE_VALUE ( ( unsigned short ) ( ( configPERIPHERAL_CLOCK_HZ / 8UL ) / timerINTERRUPT_FREQUENCY ) )
-
-/* The highest available interrupt priority. */
-#define timerHIGHEST_PRIORITY ( 15 )
-
-/* Misc defines. */
-#define timerTIMER_3_COUNT_VALUE ( *( ( unsigned short * ) 0x8801a ) ) /*( CMT3.CMCNT )*/
-
-/*-----------------------------------------------------------*/
-
-/* Interrupt handler in which the jitter is measured. */
-static void prvTimer2IntHandler( void );
-
-/* Stores the value of the maximum recorded jitter between interrupts. This is
-displayed on one of the served web pages. */
-volatile unsigned short usMaxJitter = 0;
-
-/* Counts the number of high frequency interrupts - used to generate the run
-time stats. */
-volatile unsigned long ulHighFrequencyTickCount = 0UL;
-
-/*-----------------------------------------------------------*/
-
-void vSetupHighFrequencyTimer( void )
-{
- /* Timer CMT2 is used to generate the interrupts, and CMT3 is used
- to measure the jitter. */
-
- /* Enable compare match timer 2 and 3. */
- MSTP( CMT2 ) = 0;
- MSTP( CMT3 ) = 0;
-
- /* Interrupt on compare match. */
- CMT2.CMCR.BIT.CMIE = 1;
-
- /* Set the compare match value. */
- CMT2.CMCOR = ( unsigned short ) ( ( ( configPERIPHERAL_CLOCK_HZ / timerINTERRUPT_FREQUENCY ) -1 ) / 8 );
-
- /* Divide the PCLK by 8. */
- CMT2.CMCR.BIT.CKS = 0;
- CMT3.CMCR.BIT.CKS = 0;
-
- /* Enable the interrupt... */
- _IEN( _CMT2_CMI2 ) = 1;
-
- /* ...and set its priority to the maximum possible, this is above the priority
- set by configMAX_SYSCALL_INTERRUPT_PRIORITY so will nest. */
- _IPR( _CMT2_CMI2 ) = timerHIGHEST_PRIORITY;
-
- /* Start the timers. */
- CMT.CMSTR1.BIT.STR2 = 1;
- CMT.CMSTR1.BIT.STR3 = 1;
-}
-/*-----------------------------------------------------------*/
-
-#pragma interrupt ( prvTimer2IntHandler( vect = _VECT( _CMT2_CMI2 ), enable ) )
-static void prvTimer2IntHandler( void )
-{
-volatile unsigned short usCurrentCount;
-static unsigned short usMaxCount = 0;
-static unsigned long ulErrorCount = 0UL;
-
- /* We use the timer 1 counter value to measure the clock cycles between
- the timer 0 interrupts. First stop the clock. */
- CMT.CMSTR1.BIT.STR3 = 0;
- nop();
- nop();
- usCurrentCount = timerTIMER_3_COUNT_VALUE;
-
- /* Is this the largest count we have measured yet? */
- if( usCurrentCount > usMaxCount )
- {
- if( usCurrentCount > timerEXPECTED_DIFFERENCE_VALUE )
- {
- usMaxJitter = usCurrentCount - timerEXPECTED_DIFFERENCE_VALUE;
- }
- else
- {
- /* This should not happen! */
- ulErrorCount++;
- }
-
- usMaxCount = usCurrentCount;
- }
-
- /* Used to generate the run time stats. */
- ulHighFrequencyTickCount++;
-
- /* Clear the timer. */
- timerTIMER_3_COUNT_VALUE = 0;
-
- /* Then start the clock again. */
- CMT.CMSTR1.BIT.STR3 = 1;
-}
-
-
-
-
-
-
-
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