Jacob Posted April 14, 2018 Share Posted April 14, 2018 Hi: We are looking for a "digital logic analyzer and pattern generator" for our embedded development. We need to, at the same time --generate 32 channel signals using signal generator --and observe another 32 channel signals with logic analyzers We looked at your "digital discovery", and think it is a good candidate. But it seems it can only generate 16 channel signals and analyze 32 channel signals. For our needs, do you have other products you can suggest? Or can the digital discovery be expanded to support our needs? Link to comment Share on other sites More sharing options...
attila Posted April 16, 2018 Share Posted April 16, 2018 Hi @Jacob Only the Electronics Explorer has 32 digital IO lines. The Digital Discovery has 16 Digital IOs and 24 Digital Inputs. You could use 16+16 or 24+8 to capture 32 lines but due to different input stages there could be a few nanosecond delay skew between the IOs and inputs. Link to comment Share on other sites More sharing options...
Jacob Posted May 19, 2018 Author Share Posted May 19, 2018 hi, @attila I see. Suppose I want to generate <10MHz 32 channel signal by combining 2 digital discovery. It should be OK, right? How do I synchronize the 2 digital discovery, assuming a few nano second is acceptable? (I can use the software to control the 2 digital discovery at the same time?) Link to comment Share on other sites More sharing options...
attila Posted May 21, 2018 Share Posted May 21, 2018 Hi @attila The Digital Discovery does not have dedicated external trigger lines. You could use any digital line to trigger, to synchronize the generators on an external signal. For this you would need a 3rd device to generate such signal, which could be also used at the same time to analyze the other 32 lines... The Digital Discovery can be used to analyze 32 lines of data, but to generate 32 signals I would rather use an FPGA or MCU board.https://store.digilentinc.com/fpga-programmable-logic/https://store.digilentinc.com/embedded-processors/ Link to comment Share on other sites More sharing options...
Jacob Posted May 23, 2018 Author Share Posted May 23, 2018 hi @attila Thanks. I will study how to generate 32-bit signal using FPGA or embedded processor, as you suggested. From your link, there are a lot of options. For my purpose of generating 32-bit signal, can you suggest one FPGA, and one embedded processor? So I can study into it. Link to comment Share on other sites More sharing options...
JColvin Posted May 24, 2018 Share Posted May 24, 2018 Hi @Jacob, Are you looking to generate a single 32-bit digital signal or 32 individual signals on their own lines? Additionally, as a clarification, what frequency are you hoping to generate these signals at, <10 MHz like you mentioned before? Knowing this will help us make a better recommendation to you. Thank you, JColvin Link to comment Share on other sites More sharing options...
Jacob Posted May 25, 2018 Author Share Posted May 25, 2018 @JColvin My only goal is to generate 32 signal lines to drive another PCB board's inputs. some of these 32 signal lines need to toggle at the same time, some need to have timing relationship with each other. (I would like to program them) So I guess, it is 32 individual signals on their own lines. 10MHz should be OK for now. Link to comment Share on other sites More sharing options...
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Jacob
Hi:
We are looking for a "digital logic analyzer and pattern generator" for our embedded development.
We need to, at the same time
--generate 32 channel signals using signal generator
--and observe another 32 channel signals with logic analyzers
We looked at your "digital discovery", and think it is a good candidate.
But it seems it can only generate 16 channel signals and analyze 32 channel signals.
For our needs, do you have other products you can suggest?
Or can the digital discovery be expanded to support our needs?
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