mirror of
https://bitbucket.org/librepilot/librepilot.git
synced 2024-12-05 13:24:11 +01:00
90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
|
/**
|
||
|
******************************************************************************
|
||
|
*
|
||
|
* @file test_cpuload.c
|
||
|
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
|
||
|
* @brief Calibration for the CPU load calculation
|
||
|
* @see The GNU Public License (GPL) Version 3
|
||
|
*
|
||
|
*****************************************************************************/
|
||
|
/*
|
||
|
* This program is free software; you can redistribute it and/or modify
|
||
|
* it under the terms of the GNU General Public License as published by
|
||
|
* the Free Software Foundation; either version 3 of the License, or
|
||
|
* (at your option) any later version.
|
||
|
*
|
||
|
* This program is distributed in the hope that it will be useful, but
|
||
|
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||
|
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||
|
* for more details.
|
||
|
*
|
||
|
* You should have received a copy of the GNU General Public License along
|
||
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||
|
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||
|
*/
|
||
|
|
||
|
/**
|
||
|
* This file is used to calculate the number of counts we get when
|
||
|
* the CPU is fully idle (no load). This is used by systemmod.c to
|
||
|
* calculate the CPU load. This calibration should be run whenever
|
||
|
* changes are made in the FreeRTOS configuration or on the compiler
|
||
|
* optimisation parameters.
|
||
|
*/
|
||
|
|
||
|
#include "openpilot.h"
|
||
|
|
||
|
// Local constants
|
||
|
#define BENCHMARK_DURATION_MS 10000
|
||
|
|
||
|
// Local functions
|
||
|
static void testTask(void *pvParameters);
|
||
|
|
||
|
// Variables
|
||
|
static uint32_t idleCounter = 0;
|
||
|
static uint32_t idleCounterClear = 0;
|
||
|
|
||
|
int main()
|
||
|
{
|
||
|
PIOS_SYS_Init();
|
||
|
|
||
|
// Create test task
|
||
|
xTaskCreate(testTask, (signed portCHAR *)"Test", 1000 , NULL, 1, NULL);
|
||
|
|
||
|
// Start the FreeRTOS scheduler
|
||
|
vTaskStartScheduler();
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static void testTask(void *pvParameters)
|
||
|
{
|
||
|
uint32_t countsPerSecond = 0;
|
||
|
|
||
|
while (1)
|
||
|
{
|
||
|
// Delay until enough required test duration
|
||
|
vTaskDelay( BENCHMARK_DURATION_MS / portTICK_RATE_MS );
|
||
|
|
||
|
// Calculate counts per second, set breakpoint here
|
||
|
countsPerSecond = idleCounter / (BENCHMARK_DURATION_MS/1000);
|
||
|
|
||
|
// Reset and start again - do not clear idleCounter directly!
|
||
|
// SET BREAKPOINT HERE and read the countsPerSecond variable
|
||
|
// this should be used to update IDLE_COUNTS_PER_SEC_AT_NO_LOAD in systemmod.c
|
||
|
idleCounterClear = 1;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void vApplicationIdleHook(void)
|
||
|
{
|
||
|
/* Called when the scheduler has no tasks to run */
|
||
|
if (idleCounterClear == 0)
|
||
|
{
|
||
|
++idleCounter;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
idleCounter = 0;
|
||
|
idleCounterClear = 0;
|
||
|
}
|
||
|
}
|