Data transfer failed, image processor demo (Nexys4)

[masterdezign]

Hello!

I have checked the image processor demo.
The data transfer never occurs, i.e. the result from send_images.py:

#communicate
t0 = time.clock()
new_image = []
for i in range(256):
    print "i", i
    row = struct.pack(">" + "h"*256, *image_data[:256])
    image_data = image_data[256:]
    send(row)
    ...

will print "i 0" and that's all. The process will be hanging forever :(

Is there any reasonable way to debug the data transfer?

[dawsonjon]

Sure,
Can you give me some more details?
What os are you using?
How have you got your network set up?
Is the fpga definitely configured?
Does the TX/rx light flash on the Dev board?
Have you tried performing a soft reset before sending the image?

Thanks
Jon

[masterdezign]

Hi! What os are you using?

Ubuntu 14.04

How have you got your network set up?

Using configure network script

Is the fpga definitely configured?

Yes

Does the TX/rx light flash on the Dev board?

Ethernet LEDs are, I haven't checked specifically for UART though.

…

Have you tried performing a soft reset before sending the image? No

[dawsonjon]

OK thanks, Do you have a direct connection from the network card to the board? The connection uses raw Ethernet, so it is possible that other network traffic could confuse things. I guess the next steps to debug would be to track the network packets using wireshark, or perhaps add some debug messages on the serial port. You could also try using the raw_ethernet demo to check the connection (does a simple echo test). Jon

…

On 23 March 2018 at 12:52, Bogdan Penkovsky ***@***.***> wrote: Hi! What os are you using? > Ubuntu 14.04 > How have you got your network set up? > Using configure network script > Is the fpga definitely configured? > Yes > Does the TX/rx light flash on the Dev board? > Ethernet LEDs are, I haven't checked specifically for UART though. > Have you tried performing a soft reset before sending the image? > > No > — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#10 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAry3zO_YWI-J_jtihhtrR1owFxYmDu9ks5thPApgaJpZM4S3r5V> .

[masterdezign]

Hi!

Do you have a direct connection from the network card to the board?

Yes

The connection uses raw Ethernet, so it is possible that other network traffic could confuse things. I guess the next steps to debug would be to track the network packets using wireshark, or perhaps add some debug messages on the serial port. You could also try using the raw_ethernet demo to check the connection (does a simple echo test).

Thank you. I will be able to check on Monday.

[masterdezign]

Hi!

I have checked the raw_ethernet demo.
Here is the result:

$ sudo python test_ethernet.py
select network adaptor:
0 lo
1 eth0
1
connecting to eth0 ...[OK]

And... stalled

However, the web_server demo works fine. Here is what I get when running sudo python test_ethernet.py from raw_ethernet demo, but with web_server FPGA configuration:

select network adaptor:
0 lo
1 eth0
1
connecting to eth0 ...[OK]
sending random packet: 0 bytes_sent 0x1d0 bytes received 0x3a
failure
sent:
00000000 : 40 8f 57 4a 60 7e 05 52 f5 38
0000000a : 2c 53 48 37 da ea 7b b1 f9 74
00000014 : 70 b0 19 4b f9 70 9f c1 c6 ee
0000001e : 09 02 85 89 ae 41 9b e0 d5 17
00000028 : 2c 51 09 0e ad cb 39 98 64 65
00000032 : f6 1b ee 06 e9 51 59 cd e1 8b
0000003c : 44 f8 b1 31 6b 61 19 fa 4f 2d
00000046 : d8 a4 ba be 92 2f 27 6b e5 2d
00000050 : 1b d4 4f 2c e4 39 89 a0 c0 89
0000005a : 3f 8b 90 52 28 c0 71 53 ba 7d
00000064 : 25 1f 13 9b 63 0e 96 80 bf c6
0000006e : 36 f1 2a 18 ae ea a4 fd 16 54
00000078 : 8b 57 e6 9e 2e 57 e2 0f c2 bc
00000082 : c5 99 ff 8e eb f1 d1 34 4e fd
0000008c : 93 8c 31 b1 f5 17 05 af 4b b6
00000096 : b3 99 b2 30 6e 63 30 4c e8 de
000000a0 : c6 e4 1a bc 6c 63 4b ca e7 e1
000000aa : 7a 02 64 06 ce 3a 8f fb b7 4c
000000b4 : 47 e0 13 e0 17 f8 04 86 15 7f
000000be : 3f fc 5c a9 b0 da e7 fa 78 fa
000000c8 : e2 52 01 04 76 d9 d6 37 2f e2
000000d2 : 32 51 38 c1 19 a4 0b f6 84 49
000000dc : f4 ae 76 ce 98 29 33 a1 9d bb
000000e6 : 9e a7 da 71 ef 70 68 b2 fb 94
000000f0 : 1e 61 0c 5a 4a 99 01 75 cd 27
000000fa : ae 8d 0f 0e cd c0 25 d1 ad d4
00000104 : ae 14 d8 2f 29 28 5a 0a 96 4e
0000010e : 64 e1 ac 79 a0 f4 c9 e7 c0 c7
00000118 : 29 f3 ab c8 2f 20 02 bb fe 78
00000122 : a2 e2 62 dd 71 f2 30 0e f1 3a
0000012c : e0 bc b0 b2 da 25 6d fe 2b 1f
00000136 : 6a f3 6d e0 ec 45 66 fd 43 7f
00000140 : e6 85 9e 03 77 ca 50 bf d1 d2
0000014a : 1e 88 ce b9 88 3b 9e af 95 fe
00000154 : 4f c1 e1 c3 1d c7 54 08 5f 76
0000015e : 38 7d c4 05 1b 6d 1f 53 c1 8d
00000168 : 1e 14 08 f4 ae 8d c6 2e 70 39
00000172 : 42 21 67 1b cf 50 a6 fa f7 bb
0000017c : b2 00 8f 22 94 f2 64 4a a0 80
00000186 : e4 05 86 21 99 f8 33 ef 23 48
00000190 : ca 56 b3 57 ef ad 27 7f 6c a4
0000019a : b1 a7 bf f4 0c ad 5e 96 49 ec
000001a4 : bf be 71 d3 3c 46 4f 3c 2f 70
000001ae : dd fd f4 80 23 e5 42 1c dc 90
000001b8 : 0b 8a 4b 4a 26 6b 1c 91 f9 23
000001c2 : 88 6a
got:
00000000 : 45 00 00 28 00 00 40 00 ff 06
0000000a : f8 7d c0 a8 01 01 c0 a8 01 00
00000014 : 00 50 ec 1f 00 00 08 4c 68 42
0000001e : 6e 45 50 10 05 b4 5b 8b 00 00
00000028 : 3c 68 74 6d 6c 3e