The motherboard of the echomods

What does it look like?

Information

What is it supposed to do?

The aim is to summarize all modules in a all-inclusive board. Fast ADC, good load of memory, good SNR.. the not-so-DIY module, as it comes already assembled with nothing to do =)

How does it work: block diagram

• ice40->SPI->Data Out
• ice40->PulserControl->Pulser->Transducer
• Transducer->Clipping->Time Gain Compensator->64Msps, 10-bit ADC->ice40
• ice40->Time Gain Compensator
• ice40->motor control->feedback->ice40
• Settings control->SPI->ice40

About the module

Pros

• All inclusive!
• Cost effective

Cons

• v1.0 has still some issues

Constraint and limits

v1.0: Initial design

• Some issues are left, need to take care of as in next steps
• Interesting first result, summarized below:

Getting images from a retroATL3 probe.

(see the readme )

Setup

• Acquiring the signal
• On the computer / processing side
• The FPGA binary

Results

Fooling around

Extracting spectrum analysis of this line

Playing with the gain setting

Controling the pulser works!

• Checked here

Reaching n2 rank on HackerNews

On may 1st =)

Discussions

TODO

• See the next steps
• Having it work with a retroATL3

DONE

• Getting some signals!

People

• Kelu124