Haasoscope

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Jul 06, 2018

Serial decoding

Serial decoding has been the most requested Haasoscope feature. Now it has it! The fast ADC channels can now be decoded (interpreted as carrying digital info according to various protocols like UART, I2C, SPI, etc.) using the ripyl python library.

By default the selected channel will be interpreted as UART at 1500000 baud, 8 bit, no parity, 1 stop bit, and idle high, with logic levels of 1.0, 1.5 V for low, high, and printed as decimal values. These settings can all be changed by editing the “decode” function in the Haasoscope python code.

Cheers,
Andy

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Product Choices

$119

Your very own Haasoscope!

A fully assembled Haasoscope, preloaded with firmware and ready for data-taking! You also might want to grab a USB-serial adapter (for interfacing to a computer) and/or a USB-blaster (for reprogramming the firmware).


$9

USB-blaster

This lets you reprogram the Haasoscope FPGA firmware from either Windows or Linux using the free Altera Quartus II software via the JTAG connector.


$9

A Cool Screen!

This is a 0.96" 128X64 pixel white OLED screen. It communicates with the Haasoscope over an SPI interface, and can show ADC data from a selected channel, or whatever you tell it to! It can plug directly into the header above the FPGA.


$16

Oscilloscope Probes

Two passive 100 MHz bandwidth oscilloscope probes for connecting to Haasoscope 100 MHz ADC inputs using BNC.


$15

High-speed USB Readout Board

In case 1.5 Mb/s is not enough bandwidth for you, grab one of these boards and have high-speed USB2 output from a Haasoscope! Using just 8+2 digital outputs on the Haasoscope, you can get about 4 MB/s, about 20x faster than serial, and still use the same python readout code. It's supported in the stock firmware too! Using 8+4 digital outputs, you could in theory even get up to 40 MB/s using C++ readout code and the free FTDI USB libraries.

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Credits

Andy Haas

I teach physics at NYU. I use electronics for research, in teaching, and as a hobby.


Andrew Haas


Seeed Studio

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