Delta Sigma Pi Version 2

Demo code for the Delta Sigma Pi version 2 board from http://www.abelectronics.co.uk

Delta Sigma Pi files for leveraging your Delta Sigma device on your Raspberry Pi

Getting Started

Update system and install python, git and the smbus functionality

sudo apt-get update && apt-get upgrade
sudo apt-get install python git i2c-tools python-smbus

Edit your /etc/modules file adding

sudo nano /etc/modules

Add

i2c-bcm2708 
i2c-dev

Edit /etc/modprobe.d/raspi-blacklist.conf

sudo nano /etc/modprobe.d/raspi-blacklist.conf

comment out

blacklist spi-bcm2708
blacklist i2c-bcm2708

it should now read

#blacklist spi-bcm2708
#blacklist i2c-bcm2708

Now lets test connectivity

modprobe i2c-dev
i2cdetect -y 1

you should see some numbers somewhere, it will look something like this

0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- 68 69 -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

Get the python scripts

git clone git://github.com/abelectronicsuk/deltasigmapi.git
cd deltasigmapi

Get the reading from the board

sudo python deltasigmapismbus.py

======= Code demos are available in Python 2.7 / 2.8 Old quick2wire demos have been removed as the quick2wire lib appears to be no longer maintained.

Requries Python 2.7 Requires SMBus

install SMBus with: sudo apt-get install python-smbus

dspilogger.py - Samples at 18bit rate and saves to a text file with timestamp

dspi12.py - Samples at 12bit rate and outputs to console/terminal dspi16.py - Samples at 16bit rate and outputs to console/terminal dspi18.py - Samples at 18bit rate and outputs to console/terminal