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mpu6050 kernel #149

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mpu6050 kernel #149

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90f7bc1
mpu6050: Fix errors, add DTS, increase precision for temperature
antman88 Dec 19, 2019
b5af482
mpu6050: Add solution for measuring the performance and improve it
antman88 Dec 19, 2019
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29 changes: 4 additions & 25 deletions mpu6050/Makefile
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Original file line number Diff line number Diff line change
@@ -1,32 +1,11 @@
#
# mpu6050 accelerometer & gyroscope
#
ifneq ($(KERNELRELEASE),)

obj-m := mpu6050.o

else


ifeq ($(KERNELDIR),)
ifeq ($(BBB_KERNEL),)
$(error Path to kernel tree - KERNELDIR or BBB_KERNEL variable is not defined!)
endif
endif

KERNELDIR ?= $(BBB_KERNEL)

export ARCH = arm
export CROSS_COMPILE ?= arm-linux-gnueabihf-


.PHONY: all clean
obj-m += mpu6050.o

all:
$(MAKE) -C $(KERNELDIR) M=$(CURDIR) modules
make -C ${BUILD_KERNEL} M=$(PWD) ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- modules

clean:
$(MAKE) -C $(KERNELDIR) M=$(CURDIR) clean


endif
make -C ${BUILD_KERNEL} M=$(PWD) ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- clean

22 changes: 22 additions & 0 deletions mpu6050/logs/log_read_attributes.txt
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Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
root@orangepione:~# lsmod
Module Size Used by
mpu6050 16384 0
auto_loadable_module 16384 0
root@orangepione:~# cd /sys/class/mpu6050/
root@orangepione:/sys/class/mpu6050# ls
accel_x accel_y accel_z gyro_x gyro_y gyro_z temp
root@orangepione:/sys/class/mpu6050# cat accel_x
-10812
root@orangepione:/sys/class/mpu6050# cat accel_y
-7096
root@orangepione:/sys/class/mpu6050# cat accel_z
11000
root@orangepione:/sys/class/mpu6050# cat gyro_x
566
root@orangepione:/sys/class/mpu6050# cat gyro_y
82
root@orangepione:/sys/class/mpu6050# cat gyro_z
-369
root@orangepione:/sys/class/mpu6050# cat temp
22.364

41 changes: 41 additions & 0 deletions mpu6050/logs/measuring_performance_log.txt
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Original file line number Diff line number Diff line change
@@ -0,0 +1,41 @@

/*Before the performance improvement*/

root@orangepione:/storage# ./meas_perform.exe
Amount of readings per second: 40
root@orangepione:/storage# ./meas_perform.exe
Amount of readings per second: 40
root@orangepione:/storage# ./meas_perform.exe
Amount of readings per second: 40
root@orangepione:/storage# ./meas_perform.exe
Amount of readings per second: 39
root@orangepione:/storage# ./meas_perform.exe
Amount of readings per second: 39

/*After the performance improvement*/

root@orangepione:/storage# ./meas_perform.exe
Amount of readings per second: 256
root@orangepione:/storage# ./meas_perform.exe
Amount of readings per second: 258
root@orangepione:/storage# ./meas_perform.exe
Amount of readings per second: 265
root@orangepione:/storage# ./meas_perform.exe
Amount of readings per second: 265
root@orangepione:/storage# ./meas_perform.exe
Amount of readings per second: 265
root@orangepione:/storage# ./meas_perform.exe
Amount of readings per second: 265
root@orangepione:/storage# ./meas_perform.exe
Amount of readings per second: 265
root@orangepione:/storage# ./meas_perform.exe
Amount of readings per second: 265
root@orangepione:/storage# ./meas_perform.exe
Amount of readings per second: 265
root@orangepione:/storage# ./meas_perform.exe
Amount of readings per second: 265
root@orangepione:/storage# ./meas_perform.exe
Amount of readings per second: 265
root@orangepione:/storage# ./meas_perform.exe
Amount of readings per second: 265

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