MEMS (sensors)

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Resolved! lis2mdl driver computes the wrong hard iron offsets

lis2mdl_reg.c has an error in the function int32_t lis2mdl_mag_user_offset_set(stmdev_ctx_t *ctx, int16_t *val).The function incorrectly calculates the OFFSET_X_REG_H, OFFSET_Y_REG_H, and the OFFSET_Z_REG_H registers because it converts val[0] to an ...

How can I choose gyro for BLDC position control?

Hi, I am working on high precision position control with BLDC motors on my master thesis. I am trying to control the position with an encoder on the TI-C200 processors and It's ok for now. The control accuracy is 0.1 degree on the encoder but for my ...

KDoga.1 by Associate II
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  • 5 replies
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Resolved! Using STM32F446, ISM330DHCX and MotionFX, computed yaw angle is correct after a controlled 90-degree right rotation, but the yaw angle is off by ~3 degrees after each 90-degree left rotation. What could be causing this issue?

The MotionFX Library is initialized as follows: MotionFX_getKnobs(&iKnobs); /* Modify knobs settings */ // Configure knobs with non-default values iKnobs.output_type = MFX_ENGINE_OUTPUT_ENU; iKnobs.modx  = 1; // No decimation iKnobs.ATime = 10; // ka...

SLibe by Associate II
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  • 12 replies
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Resolved! Error while inserting the STM Linux driver

hello,I am trying to get the LSMDSO32 to work with https://github.com/STMicroelectronics/STMems_Linux_IIO_drivers branch 4.19 built on 5.4 kernel.I am able to build the kernel image on 5.4But when i try to insmod the modules i get the following error...

SPrab.3 by Associate II
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  • 6 replies
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Resolved! High Pass filter on LSM6DS3?

Hi,We are running a vibration analysis system based on the LSM6DS3. This is FIFO based, and everything works as expected. Application is accel only.However when enabling the high pass filter from the digital composite filter, all readings out of the ...

CHuyg.1 by Associate II
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  • 2 replies
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Resolved! Are not there connectors on X-NUCLEO-53L1A2?

Hi!I purchased X-NUCLEO-53L1A2 and tried to check the function.However it was impossible to connect VL53L1 breakout board through left and right connectors.Because there were not left and right connectors. I attached the picture. But about X-NUCLEO...

0693W000008Gd6MQAS.jpg
TYomo by Associate II
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  • 5 replies
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Resolved! LPS33W Reflow profile unclear

Hi.According to the DS of the LPS33W - the Reflow profile should be according to JEDEC J-STD-020 , with no actual determination of the profile.we had several boards assembled , and with very little force applied, the sensor disintegrated - the metal ...

0693W000007D21tQAC.png
SGano.1 by Associate II
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  • 16 replies
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