SmartMotion® MEMS Motion Sensors

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By cvickerpurdueedu , 16 August 2021

Hello I am trying to read the acceleration register from the ICM-20602. I am able to read the who_am_i register and set the power 1 and power 2 registers to 0x01 and 0x3F respectively. I have also read back the power 1 and power 2 registers to confirm they are set correctly. When I go to read any of the acceleration or temperature resisters I get back 0x7F. Attached is my code. It seems the sensor is not turned on. Do I need to do anything else to power up the 20602 other than setting power 1 and 2? Thanks!

By ariannaghezzii… , 12 August 2021

Hi all,

I am using an ICM20649 sensor, controlling it with an STM32H7 microprocessor.

I ported the “invn.firmware.emd-mcu.nucleo.icm20649-iar-cm4-fpu-1.1.0” example code to my project and I am successfully controlling the sensor to get accelerometer, gyroscope and quaternion data @200Hz.

By timmathiastalk21com , 7 August 2021

Hi,

I'm learning about MPU-60X0 and ICM-20948.

What is the full-scale range of the accelerometer and gyroscope registers in bits?

They are 16-bit registers, so, for example, I could assume that 32767 equals 249.992°/s and that -32768 equals -250°/s, but is that assumption correct?

I can't see it explicitly stated in the datasheets, e.g. MPU-6000/MPU-6050 Register Map and Descriptions.

Cheers.

By luo843870048126com , 7 August 2021

1. 6050高频率的出现信号异常 当出现信号异常时,静止放在桌面 异常消失。
2. 一直静止放在桌面时 信号上的表现有概率出现测量量程从8g变为2g 整体呈现放大。但该情况出现时 寄存器值未发生变更

By jolaizolaamond… , 27 July 2021

Hi everyone,

I am trying to use the DK20789 as a standalone data logger, using at the same time the MPU9250 EVB board (for the magnetometer signal) and the IO1 Xplained Pro extension board (for the microSD). Unfortunatelly, it seems the microcontroller (ATSAMG55J19) or the power regulator is not able to provide strong/fast enough poewr signals to both extension boards. If the MPU9250 is connected to CN1, IO1 Xplained Pro cannot communicate with the microSD card (MISO line answers with incorrect data).

By sebastianpoint… , 15 July 2021

I wanted to ask if there is a build for the SensorFusion Algorithm for the Xtensa Architecture available anywhere?
The package comes with a couples of builds for ARM and compilers like GCC/IAR/KEIL.

I would need the package for Xtensa and GCC.

Anyone knows if there is a possibility to get the static library anywhere in this form?

Thank you all,
Sebastian

By pck20 , 15 July 2021

Hi Sir

Do you think you could let us know where we could find the DK-42688-V schematics? I purchased it from mouser.com but I am not able to find both the schematic information and datasheet.

Is it possible to provide information on how to interface to the ICM-42688 directly without the Atmel MCU? For example, using another microprocessor.

Thank you.
Regards
Ping