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RE: Adafruit USB and PPS


From: Neal Dillman
Subject: RE: Adafruit USB and PPS
Date: Fri, 29 Nov 2019 21:31:20 +0000

Hi Gary,

 

timeservice is not needed, just helpful.

 

OK.  It compiles clean without that.  For now I have left it in.

 

> One important note is that timeservice will not compile clean on the

> pi without modifying SConstruct

 

Works for me.

 

> At any rate, -lpthread is needed for pi.

 

That should be autodetected.  Please sned the entire output of your build.

 

Attached is the output on the PI, with SConstruct unmodified, with timeservice turned on.

 

That is a kernel driver problem.   What kernel driver is in use for

your /dev/ttyUSB0?

 

I like that theory a lot.  Here is the pertinent output from dmesg.

 

[    2.050177] usb 1-1.2: new full-speed USB device number 4 using dwc_otg

[    2.185058] usb 1-1.2: New USB device found, idVendor=10c4, idProduct=ea60

[    2.185069] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3

[    2.185077] usb 1-1.2: Product: CP2104 USB to UART Bridge Controller

[    2.185084] usb 1-1.2: Manufacturer: Silicon Labs

[    2.185092] usb 1-1.2: SerialNumber: 01835A41

[    3.039802] usbcore: registered new interface driver cp210x

[    3.039917] usbserial: USB Serial support registered for cp210x

[    3.040073] cp210x 1-1.2:1.0: cp210x converter detected

[    3.059982] usb 1-1.2: cp210x converter now attached to ttyUSB0

 

 

Regards,

Neal

Attachment: scons.txt
Description: scons.txt


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