Reach + USB to Windows, constant reboots?

Reach Module / M+ / M2 Getting started
1

I have a pair of Reach that I have set up using WiFi, with one sending correction data to the other via 433MHz radios connected via UART, both seem to work fine.

However when I try to connect either of them to my Windows 10 laptop, they seem to go into a boot loop. When I plug them in, Windows plays the ‘hardware connected’ sound & an unrecognized device appears in Device Manager;

CvWvLvM.png781×572 25 KB

Then a few seconds later Windows plays the ‘hardware disconnected’ sound & then the process just repeats over & over.

They are not drawing too much power even with the 433MHz radios attached, they pull 0.27A just before they reboot. I have tried different USB ports & different USB cables. I have also tried connected them to a Raspberry Pi & the same thing seems to happen, they just go into a boot loop. They are running up-to-date firmware, I have USB output enabled on the rover unit, I have the Windows Edison driver installed.

What might be wrong?

2

I had the same problem when I had my RFD900 radio attached to Reach and then plugged Reach into the computer. A powered USB hub solved the problem.

1 Like
3

Most likely the power output is not enough.

4

I have the same problem even with the 433MHz radios disconnected - they pull 0.17A then reboot. The same USB port will happily provide 0.62A to my Android phone when I connect that.

It seems to behave better when connected to a Raspberry Pi 3B

[  585.297518] usb 1-1.4: new high-speed USB device number 18 using dwc_otg
[  585.410727] usb 1-1.4: New USB device found, idVendor=8086, idProduct=e005
[  585.410755] usb 1-1.4: New USB device strings: Mfr=2, Product=1, SerialNumber=3
[  585.410769] usb 1-1.4: Product: MERRIFIELD
[  585.410782] usb 1-1.4: Manufacturer: INTEL
[  585.410794] usb 1-1.4: SerialNumber: EC55DC8BDDA3616EED90FC233F22AA0A
[  594.535797] usb 1-1.4: USB disconnect, device number 18
[  595.287527] usb 1-1.4: new high-speed USB device number 19 using dwc_otg
[  595.400795] usb 1-1.4: New USB device found, idVendor=8086, idProduct=e005
[  595.400816] usb 1-1.4: New USB device strings: Mfr=2, Product=1, SerialNumber=3
[  595.400829] usb 1-1.4: Product: MERRIFIELD
[  595.400842] usb 1-1.4: Manufacturer: INTEL
[  595.400855] usb 1-1.4: SerialNumber: EC55DC8BDDA3616EED90FC233F22AA0A
[  595.559933] usb 1-1.4: USB disconnect, device number 19
[  598.097549] usb 1-1.4: new high-speed USB device number 20 using dwc_otg
[  598.198252] usb 1-1.4: New USB device found, idVendor=8087, idProduct=0a99
[  598.198275] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  598.198288] usb 1-1.4: Product: USB download gadget
[  598.198302] usb 1-1.4: Manufacturer: Intel
[  600.936628] usb 1-1.4: USB disconnect, device number 20
[  615.257665] usb 1-1.4: new high-speed USB device number 21 using dwc_otg
[  615.358586] usb 1-1.4: New USB device found, idVendor=8087, idProduct=0a9e
[  615.358611] usb 1-1.4: New USB device strings: Mfr=2, Product=3, SerialNumber=4
[  615.358624] usb 1-1.4: Product: Edison
[  615.358636] usb 1-1.4: Manufacturer: Intel
[  615.358649] usb 1-1.4: SerialNumber: 22e71a744354ee68f876c21a013a8fa8
[  615.362263] cdc_ether 1-1.4:2.0 usb0: register 'cdc_ether' at usb-3f980000.usb-1.4, CDC Ethernet Device, a2:21:b2:a2:05:4e
[  615.365325] cdc_acm 1-1.4:2.2: ttyACM0: USB ACM device
[  615.367538] usb-storage 1-1.4:2.4: USB Mass Storage device detected
[  615.378986] scsi host2: usb-storage 1-1.4:2.4
[  615.535416] IPv6: ADDRCONF(NETDEV_UP): usb0: link is not ready
[  615.537697] cdc_ether 1-1.4:2.0 usb0: kevent 12 may have been dropped
[  615.583701] IPv6: ADDRCONF(NETDEV_UP): usb0: link is not ready
[  615.633452] IPv6: ADDRCONF(NETDEV_CHANGE): usb0: link becomes ready
[  615.633502] cdc_ether 1-1.4:2.0 usb0: kevent 12 may have been dropped
[  616.378723] scsi 2:0:0:0: Direct-Access     Linux    File-CD Gadget   0310 PQ: 0 ANSI: 2
[  616.380147] sd 2:0:0:0: Attached scsi generic sg0 type 0
[  616.386052] sd 2:0:0:0: [sda] Attached SCSI removable disk
[  661.137466] cdc_ether 1-1.4:2.0 usb0: kevent 12 may have been dropped
[  661.137503] cdc_ether 1-1.4:2.0 usb0: kevent 12 may have been dropped
[  706.087862] cdc_ether 1-1.4:2.0 usb0: kevent 12 may have been dropped
[  706.087901] cdc_ether 1-1.4:2.0 usb0: kevent 12 may have been dropped
[  706.088255] cdc_ether 1-1.4:2.0 usb0: kevent 12 may have been dropped
[  751.099169] cdc_ether 1-1.4:2.0 usb0: kevent 12 may have been dropped
[  751.099208] cdc_ether 1-1.4:2.0 usb0: kevent 12 may have been dropped
[  751.099449] cdc_ether 1-1.4:2.0 usb0: kevent 12 may have been dropped
[  751.099577] cdc_ether 1-1.4:2.0 usb0: kevent 12 may have been dropped
[  796.075852] cdc_ether 1-1.4:2.0 usb0: kevent 12 may have been dropped
[  796.075891] cdc_ether 1-1.4:2.0 usb0: kevent 12 may have been dropped

Edit - spoke too soon, the Pi loses its WiFi connection, keyboard/mouse & the Emlid keeps reconnecting.

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