Unable to use 9250s as auxiliary if the main imu is 20948 about slimevr-tracker-esp HOT 14 CLOSED

Seems like we're running out of memory here :/

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weren't memory optimized for 9250 already?

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weren't memory optimized for 9250 already?

Yep , it can be used alone , but if my main IMU is 20948, and 9250 as aux, i can't finish calibration process

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I made a separate tracker for the chest, But the feet are difficult :<

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• 9250 main, 6500 aux too. can't finish calibration process.

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So we need to reduce memory usage of Magneto...

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Magneto library doesn't consume much memory with recent changes. The problem is most likely that DMP image is allocated on stack and takes a lot of space. We should try allocating it on heap and freeing when not needed.

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With changing to pgmspace i could free about 14'304 byte heap on ESP8266.
No change on ESP32 i think this was already fine before. #138

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Should be fixed. Reopen if the issue persists with the latest main.

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Should be fixed. Reopen if the issue persists with the latest main.

After this fixed, new issue produced :
When finished calibration, it will work fine with 20948, but if you restart tracker, 9250 will not work anymore(just like you never do a calibration process)
Now the 9250 need recalibrate every time restart the tracker, otherwise it will not work (20948 is working fine)

[OK] Port opened
[DEBUG] [ICM20948Sensor:0] DMP initialized
[DEBUG] [ICM20948Sensor:0] Using 9 axis configuration
[DEBUG] [ICM20948Sensor:0] Enabled DMP sensor for sensor orientation
[DEBUG] [ICM20948Sensor:0] Set Quat9 to 100Hz frequency
[DEBUG] [ICM20948Sensor:0] FIFO Enabled
[DEBUG] [ICM20948Sensor:0] DMP Enabled
[DEBUG] [ICM20948Sensor:0] Reset DMP
[DEBUG] [ICM20948Sensor:0] Reset FIFO
[INFO ] [MPU9250Sensor:1] Connected to MPU9250 (0x71) at address 0x69
[DEBUG] [MPU9250Sensor:1] Enabling DMP...
[DEBUG] [MPU9250Sensor:1] DMP ready! Waiting for first interrupt...
[INFO ] [WiFiHandler] Setting up WiFi
[INFO ] [WiFiHandler] Loaded credentials for SSID potato and pass length 8
[DEBUG] [WiFiHandler] Status: 7
[NOTICE] OTA updates allowed
.[ERROR] [ICM20948Sensor:0] Sensor timeout I2C Address 0x68
...[INFO ] [WiFiHandler] Connected successfully to SSID 'potato', ip address 192.168.1.30

Logs seems to be normal except i got a "Sensor timeout", but in fact, the 20948 is working fine
I had tried it on the other 20948 Main trackers, same issue

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Should be fixed. Reopen if the issue persists with the latest main

I had done some more tests, I noticed it has some probability that it will work, not completely out of work
The details is in discord
https://discord.com/channels/817184208525983775/912982617010352159/959802967928754176

Sorry to bother you so much, thanks for a lot

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seems a different issue with the configuration storage (eeprom). PR #134 should fix that anyway.

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#134 in main, see if this works

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#134 in main, see if this works

It's work ,thanks

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