Products > Test Equipment

New bench scope - Fnirsi 1014D, 7", 1GSa/s

<< < (21/67) > >>

pcprogrammer:

--- Quote from: joseph4511 on May 01, 2022, 07:30:23 pm ---Im curious about the 100mhz, can this device measure 100 mhz correctly ?

--- End quote ---

Nope, with 200MHz sample rate and the ~30MHz low pass bandwidth at the input it can't do 100MHz (assuming you do mean mega Hertz, upper case M and not milli Hertz, lower case m)

Did you make a copy of the FPGA FLASH? If so, can you post it here?

free_electron:

--- Quote from: nctnico on April 01, 2021, 06:53:29 pm --- When I was a youngster a very simplistic analog hobbyist scope costed nearly 10 times this price.

--- End quote ---
amazing what they can do for 100$ these days. My first scope was a Hameg 604. I paid over 1000$ back in 1985

joseph4511:
Sure i can upload. Also uploaded the image of special IC with marking

joseph4511:
Also they accepted refund without returning the goods :) So we can surgery every part on them, if you have any idea you can give. I do not understand software stuff, i m hardware guy :)

pcprogrammer:
Hardware guy, well then it will not be easy. I did some thinking about the problem and knowing that the "I2C" implementation is not to good, there might be a problem with the pull ups being to high. 10K where 2K2 is more usual for I2C. Still a bit weird that after exchanging the "special ic" to the other board left you with two broken boards.

I have to search for the details on the communication between the FPGA and this "special ic" to devise a test you could perform. Others and I did do measurements on it with a saleae logic analyzer clone, so if you have such or a similar device it might shed more light on what is going on.

Maybe it is also possible to hook up the "special ic" to an actual I2C bus connected to a linux machine and see if it responds.

I'm more of a software guy, but with a long ago hardware background, so I know a bit about how things work. Especially not to high frequency digital stuff.  :)

Navigation

[0] Message Index

[#] Next page

[*] Previous page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod