DSLogic, How do I get it to operate properly - Page 1
Forum section: electronics / testgear

author: mriPaul
author_rank: Contributor
timestamp: September 08, 2019, 01:29:17 am
content: I have a DS Logic Pro and I am using DSView 0.9.9 with win7, 24GB RAM. I am currently trying to look at 7 channels. I am set up at 5s, Buffer, 200MHz(RLE). I cannot seem get Run Length Encoding to do its thing. For example, if all lines are 0v, it captures data for 5s as one would expect. If one of the lines is raised to 3.3vdc, it will only take data for about 1.2s. Likewise, if I am looking at a clk and some data pins, it still reads for ~1.2s. I tried PulseView but could not get it to recognize the DS Logic module. One time earlier today, I appeared to get 5s of real data but I did not save it. Is there a way to get RLE to work or is it working badly?

author: AngusBeef
author_rank: Regular Contributor
timestamp: September 08, 2019, 11:15:00 pm
content: I'll let you know, I ordered one to compare with a Saleae clone LA - should arrive in about a weekSent from my SM-T820 using Tapatalk

author: mriPaul
author_rank: Contributor
timestamp: September 09, 2019, 01:12:13 am
content: Thanks. Looking forward to your response.I was thinking about RLE compression methods today. With my novice knowledge of hardware programming, it would not be difficult to compress data effectively.

author: AngusBeef
author_rank: Regular Contributor
timestamp: September 16, 2019, 04:22:39 am
content: I got the DSLOGIC working I'll get an answer to you shortly about the RLE.In the meantime, the reason it doesn't work out of the box with Pulseview is that the software has the drivers but not the firmware (firmware must be downloaded to the device as it's not stored permanently)https://sigrok.org/wiki/DreamSourceLab_DSLogicI'm not sure exactly where the firmware files go on Windows but you can copy and rename them after reading under the firmware heading the above link.

author: AngusBeef
author_rank: Regular Contributor
timestamp: September 17, 2019, 01:07:11 am
content: It may be a software issue - I thought I was getting a DSLOGIC Plus but I actually got a DSLogic Basic - I should have known based on what I paid some chinese company on eBay. That said, I haven't run into any issues with the length of my captures since they're slow enough to stream directly through USB.After looking at my board vs the board on the Sigrok site that has the device, the only thing missing is the SRAM so I'll try to solder the SRAM onto it and then use the Plus firmware with it so it has the right PID. Then the buffer should be required and I can recreate your issueSent from my SM-T820 using Tapatalk

author: TK
author_rank: Super Contributor
timestamp: September 17, 2019, 01:35:51 am
content: Quote from: AngusBeef on September 17, 2019, 01:07:11 amUsing the Plus firmware did not work for me... I had to desolder the EEPROM memory chip and reprogram the correct ID for the plus in 2 different addresses. There is more information on eevblog if you search

author: AngusBeef
author_rank: Regular Contributor
timestamp: September 17, 2019, 01:54:44 am
content: Quote from: TK on September 17, 2019, 01:35:51 amAwesome, I believe I replied to that thread actually... I'm gonna have to do some googling on how the hell you do that but it sounds like a fun project

author: DEV001
author_rank: Contributor
timestamp: September 18, 2019, 12:20:54 am
content: Just as a FYI, there is a new DSView 1.0.1 out which has many new features and tweaks if you haven't already downloaded it. I use it with both the DSCope U2P20 and DSLogic and I am impressed how much it has been improved over the last .9 version.https://www.dreamsourcelab.com/download/