Hi Paul,
The process:
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I start with an artemis logger configured at 500kbps, I might have set that frequency. The logger does not have the microsd plugged in
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I communicate with it using a serial port communication software (Mobaxterm) with my computer connected to the USB port, I open the channel at 115200bps and the communication resumes
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I configure a new serail baudrate speed by pressing ‘any key’ + 4 + 4 and then set a configuration, like for example 9600
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I check the configuration and indeed it appears 9600 bps
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I reset using the reset button
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I check the config of the board, it says serial logging speed is 9600bps
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I disconnect the usb and plug it back and check again and baudrate is 9600, so far, so good
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While the usb cable is disconnected (logger is off), I plug in the microsd (1GB)
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I connect the usb and check the baudrate: it has changed by itself to 256kbps - not good
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I reset using the button, remains at 256kbps
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I remove USB cable, remove SD card, connect USB cable without SD, check speed and it is 115200 :o
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Reconfigure it back to 9600
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reset, play around, remains 9600
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while off, put back the microsd, check speed: 115200
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change speed to 256kbps
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power cycle, reset, speed remains 256kbps
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remove microsd, speed remains 256kbps
To me it looks like there’s an internal memory but if you have used the microsd before, the configuration inside the microsd might have a higher priority than the internal memory or the like.