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inav/src/main/drivers/gyro_sync.c

73 lines
1.7 KiB
C

/*
* This file is part of Cleanflight.
*
* Cleanflight 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.
*
* Cleanflight 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 Cleanflight. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
#include "platform.h"
#include "build/build_config.h"
#include "common/axis.h"
#include "common/maths.h"
#include "drivers/sensor.h"
#include "drivers/accgyro.h"
#include "drivers/gyro_sync.h"
#include "fc/runtime_config.h"
#include "config/config.h"
extern gyro_t gyro;
uint32_t targetLooptime;
static uint8_t mpuDividerDrops;
bool getMpuDataStatus(gyro_t *gyro)
{
return gyro->intStatus();
}
bool gyroSyncCheckUpdate(void)
{
return getMpuDataStatus(&gyro);
}
void gyroSetSampleRate(uint32_t looptime, uint8_t lpf, uint8_t gyroSync, uint8_t gyroSyncDenominator)
{
if (gyroSync) {
int gyroSamplePeriod;
if (lpf == 0) {
gyroSamplePeriod = 125;
} else {
gyroSamplePeriod = 1000;
}
mpuDividerDrops = gyroSyncDenominator - 1;
targetLooptime = gyroSyncDenominator * gyroSamplePeriod;
} else {
mpuDividerDrops = 0;
targetLooptime = looptime;
}
}
uint8_t gyroMPU6xxxCalculateDivider(void)
{
return mpuDividerDrops;
}