Help with SPRESENSE

Help
#1

Hello everyone,

I’m trying to run a project I designed for keyword recognition. Although I followed the guidlines given in the EdgeImpulse’s website (Sony's Spresense - Edge Impulse Documentation) I’m constantly encountring the following error.

output
output974×381 10.3 KB

I configured the SD card is mentioned in the website and I’m giving the link from imgur since I cannot upload another picture due to some limitations.

Is there anything else I need to follow? I can connect SPRESENSE to my project without any problems.

For further information, I had many unable to load errors and I was able to hotfix it by changing the baudrate from 921600 to 115200.

Can anyone help me on this topic?

Thank you for your time,
Erdem Atbas

#2

The imgur link to the SD card can be found here. The imgur link consists of 2 images.

[Album] imgur.com

I’m also providing the website connection for further clarification.

website connection
website connection1646×412 43.4 KB

#3

How did you get the Firmware to default to a microphone?

  • The tutorial you are following says to download the Spresense Firmware, unzip it and run flash_windows.bat.
    • When I do this the Firmware loads successfully.
  • Then running run-edge-run-impulse results in
Edge Impulse impulse runner v1.16.3
[SER] Connecting to COM11
[SER] Serial is connected, trying to read config...
[SER] Failed to get info off device:undefined. Is this device running a binary built through Edge Impulse? Reconnecting in 5 seconds...
[SER] Serial is connected, trying to read config...
[SER] Retrieved configuration
[SER] Device is running AT command version 1.7.0
[SER] Started inferencing, press CTRL+C to stop...
LSE
Inferencing settings:
        Interval: 16.0000 ms
        Frame size: 375
        Sample length: 2000.0000 ms.
        No. of classes: 4
Starting inferencing, press 'b' to break
Sampling...
Err: failed to get sensor data
Predictions (DSP: 6 ms., Classification: 0 ms., Anomaly: 0 ms.):
    idle:       0.996093
    snake:      0.000000
    updown:     0.000000
    wave:       0.000000
    anomaly score: -0.066530
Starting inferencing in 2 seconds...
>

So the Firmware defaults to an IMU. The Spresense does not have a built-in IMU. Therefore it makes sense for the Firmware to bail out to a command line awaiting user input of some unknown kind.

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#4

Your SD card appears to be configured properly with the correct files.

#5

Hello MMarcial,

I would like to thank you for reply and time.

I was able to configure the SPRESENSE with a built-in microphone by adding a microphone through it’s MIC C ports given in this link (Spresense Hardware Documents). I’m using an analog microphone that is soldered on a custom PCB.

I was able to configure the port as its builtin microphone using SPRESENSE’s the flash bootloader. I will try to reset this modification and update you on this manner. Maybe the way I approach it was causing problems. However, the code I wrote for upto now enables the microphone work without any problems.

Best regards,
Erdem Atbas

#6

It appears you are running the EdgeImpulse CLI command edge-impulse-run-impulse.

What program are you flashing onto the Spresense?

#7

Hello MMarcial,

I was able to fix the problem by reinstalling the EdgeImpulse. As you mentioned everything was configured correctly. I assume when I was installing npn or downloading the libraries had a corruption. I would like to thank you for responses.

I was able to see it by using the edge-impulse-run-impulse --raw mode.

I’m using the Ardunio’s IDE to flash the Spresense. If you enquire on how I achieved that I’m happy to have a detailed conversation.

Best regards,
Erdem Atbas

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