C code test-E-1608 says No device found.

[jjhatt]

I am running Ubuntu 18.04 and built the C code for the Ethernet 1608 without a problem. I gave the device the address 192.168.1.204 and can ping it. However running the test-E-1608 program gives me this error:

$ ./test-E-1608 192.168.1.204 E-1608 IP address = 192.168.1.204 No device found. $ ---jjh

[wjasper]

Can you give any more information? Do you think it might be a firewall issue?

[jjhatt]

Dear Warren, Thank you for your interest in my little speed bump.

FYI, since the C program did not seem to work for me, I went over to the Python version. It works just fine. Thank you so much for your code examples. I chopped up your test-E-1608.py program into several Python programs that support the project work I am involved in. I need to ADC, DAC, and do some DIO. Your program example made quick work of the programs I wrote. Everything in the Python domain seems to work very well. I am impressed with the calibrated accuracy of the single-ended ADC lines on the E-1608. Thank you for showing me how to do that.

Back to C. Attached you'll find a copy of the program I built with your Makefile. Also below is the output from the program. Notice the prefix text 'The second' that I placed before your 'No device found' message. I wanted to understand where in your code bombed out, as you have two places in your code where 'No device found' is printed. As you can see also below, I can ping the device and my Python code works with the device; so I don't have a firewall blockage.

On my machine, I have two Ethernets. One is for internet access, and the other is my instrumentation LAN. I've provided OS information also below.

Let me know if I can help you further. ---jjh

c:rdlab$ ping 192.168.1.204 PING 192.168.1.204 (192.168.1.204) 56(84) bytes of data. 64 bytes from 192.168.1.204: icmp_seq=1 ttl=100 time=0.448 ms 64 bytes from 192.168.1.204: icmp_seq=2 ttl=100 time=0.471 ms 64 bytes from 192.168.1.204: icmp_seq=3 ttl=100 time=0.369 ms ^C --- 192.168.1.204 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2029ms rtt min/avg/max/mdev = 0.369/0.429/0.471/0.046 ms c:rdlab$ ./test-E-1608 192.168.1.204 E-1608 IP address = 192.168.1.204 The second No device found. c:rdlab$ uname -a Linux heron 4.15.0-47-generic #50-Ubuntu SMP Wed Mar 13 10:44:52 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux c:rdlab$

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On Sun, Apr 28, 2019 at 11:04 AM Warren Jasper notifications@github.com wrote:

Can you give any more information? Do you think it might be a firewall issue?

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