Reply To: Odd issues.

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Hi Mark,

Thank you for your response, I will look at adding the line to config.txt, although the board has behave faultlessly today…

I have actually being running the PI/BerryGPS-GSM off a FTDI/USB lead and powering the combination through the 5volt header – not USB, although I did try powering the combination of a decent power supply when the Leds went out without success.

There is nothing else on the USB Bus, although there is a Franklin lighting detector on the IC2 bus, powered of the 3 volt line, as above I am using the serial console for debugging.

The Leds only went off yesterday when I sent the AT commands to start assisted GPS and route strings through USB.

Although I have not seen the problem today, the last 20 lines of a dmesg are:

[   65.368047] usb 1-1: new high-speed USB device number 5 using dwc_otg

[   65.368487] Indeed it is in host mode hprt0 = 00001101

[   65.658997] usb 1-1: New USB device found, idVendor=8087, idProduct=07ed, bcdDevice= 1.00

[   65.659018] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0

[   66.308298] usb 1-1: USB disconnect, device number 5

[   70.958114] Indeed it is in host mode hprt0 = 00021501

[   71.167979] usb 1-1: new high-speed USB device number 6 using dwc_otg

[   71.169959] Indeed it is in host mode hprt0 = 00001101

[   71.423076] usb 1-1: New USB device found, idVendor=1546, idProduct=1102, bcdDevice=17.30

[   71.423097] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3

[   71.423106] usb 1-1: Product: u-blox Wireless Module

[   71.423114] usb 1-1: Manufacturer: u-blox

[   71.423121] usb 1-1: SerialNumber: ************

[   71.472485] cdc_acm 1-1:1.0: ttyACM0: USB ACM device

[   71.500036] cdc_acm 1-1:1.2: ttyACM2: USB ACM device

[   71.523183] cdc_acm 1-1:1.4: ttyACM3: USB ACM device

[   71.553459] cdc_acm 1-1:1.6: ttyACM4: USB ACM device

[   71.579135] cdc_acm 1-1:1.8: ttyACM5: USB ACM device

[   71.606231] cdc_acm 1-1:1.10: ttyACM6: USB ACM device

[   71.632810] cdc_acm 1-1:1.12: ttyACM7: USB ACM device

One thing I have noticed today is that  “hologram modem location/operator” commands are returning coordinates for a different location and operator to what I was seeing before – Is it possible that I was connecting to different mast (due to maintenance) it tipped me over the power budget available from the PI/Serial combination – or is that a red herring!



  • This reply was modified 2 years, 3 months ago by petec.

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