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SPI capture guide

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17 Apr 2016 21:23 #46720 by C0ckpitvue 777
Replied by C0ckpitvue 777 on topic SPI capture guide

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18 Apr 2016 16:28 #46747 by wukong
Replied by wukong on topic SPI capture guide
Hi,

Link expired...

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24 Dec 2016 01:00 - 24 Dec 2016 01:12 #57182 by Caerus
Replied by Caerus on topic SPI capture guide
Ok, first capture ever. MOSI, MISO and GND were clearly marked. There were only 2 viable options left for CLK and CS, and from what I've read and seen here they are visually very different. I think I differentiated them correctly. Would someone mind checking this first one before I continue? Goebish, do you want this straight in the H20 thread? Cheers

www.mediafire.com/file/dsd8l2m4hds5zxe/J....Then.Bind.logicdata
Last edit: 24 Dec 2016 01:12 by Caerus.

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24 Dec 2016 01:06 - 24 Dec 2016 01:10 #57183 by goebish
Replied by goebish on topic SPI capture guide
Looks fine .
Yes, you can post directly in the H20 thread.
Last edit: 24 Dec 2016 01:10 by goebish.

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24 Dec 2016 01:20 #57184 by Caerus
Replied by Caerus on topic SPI capture guide
Ahhh, that warm and fuzzy feeling :). K, thanks goebish. I've been up forever, so I'll do all the other captures when I wake up next year :ohmy:

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22 Mar 2017 13:24 #60521 by lani
Replied by lani on topic SPI capture guide
I'd like to share a small piece of python proven useful for processing the Saleae hex CSV exports to a form where each packet is on separate row instead of each byte.
Opening the resulting CSV into excel can be then used e.g. for plotting the different bytes in the frame upon time. Very handy IMO.
#!/usr/bin/env python
import csv
# open file and create reader
with open('input.csv', 'rb') as f:
  with open('output.csv', 'w') as o:
    reader = csv.reader(f, delimiter=',', quotechar='"', skipinitialspace=True)
    # read header
    header = reader.next()

    printstr = ""
    current_packageid = 0
    bytecount = 0
    for row in reader:
      new_packageid = row[1]
      new_time = row[0]
      new_byte = row[2]
      if new_packageid != current_packageid:
        o.write(str(bytecount) + "," + printstr + "\n")
        printstr = new_time + "," + str(new_packageid)
        current_packageid = new_packageid
        bytecount = 0
      #print in decimal so excel understands
      printstr += "," + str(int(new_byte, 16))
      bytecount += 1
    # print last line
    if printstr != "":
      o.write(str(bytecount) + "," + printstr + "\n")

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22 Mar 2017 16:41 #60540 by mwm
Replied by mwm on topic SPI capture guide
Anyone tried out the sigrok nrf24l01 decoder module? sigrok.org/wiki/Protocol_decoder:Nrf24l01

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22 Mar 2017 16:44 #60541 by goebish
Replied by goebish on topic SPI capture guide
Yes it works, but I still prefer our good old python scripts ;)

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02 Mar 2018 21:01 #67857 by Fernandez
Replied by Fernandez on topic SPI capture guide
Hi I tried my chinese salae logic 8 clone but have difficulties getting it to work, can someone confirm, that it still works? Is it a driver issue, or salae did damaged my clone ?
I tested different versions, device is detected as "logic", when starting a capture, it mentions it can't keep up with the selected sample rate.

Anybody can give some hints to get it work, I rarely use it......

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02 Mar 2018 21:03 #67858 by goebish
Replied by goebish on topic SPI capture guide
Can you try with another computer and/or with another USB cable ?

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03 Mar 2018 10:03 #67875 by 52dgj
Replied by 52dgj on topic SPI capture guide
dc59大大,请问你知道mc6的协议吗?如果知道可以告诉一声吗?谢谢了

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03 Mar 2018 12:28 #67878 by dc59
Replied by dc59 on topic SPI capture guide

52dgj wrote: dc59大大,请问你知道mc6的协议吗?如果知道可以告诉一声吗?谢谢了


很抱歉,我沒有買MC6所以對它使用的協定不是很清楚!
I'm sorry, I don't know about the protocol of MC6 TX due to I didn't buy it.

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05 May 2018 14:31 #69066 by manotroll
Replied by manotroll on topic SPI capture guide
can i use the oscilloscope to debug the spi?
Hantek 6022BE

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06 May 2018 00:29 #69070 by hexfet
Replied by hexfet on topic SPI capture guide
Not with that one. A logic analyzer is the best tool for this.

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16 May 2018 00:41 #69249 by manotroll
Replied by manotroll on topic SPI capture guide
right
I had a protocol that works, I'll see if I can make funsionar and test others
Bayang X16 AH

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