HadCon2 - Introduction

Introduction

HadCon2 is a credit-card sized general purpose I/O module for detector and experiment controls as well as for small data acquisition systems.

It is the successor of the discontinued first version HadCon ( HADControl/HadShoPoMo general purpose board, HadCon @ Epics Wiki).

The module has an ATMEL AT90CAN128 microcontroller providing a multitude of connectivity:

While the discontinued precursor HadCon had an SoC on-board, its successor HadCon2 has broken up this concept in favour of a more open access:
It doesn't have any CPU on board, but a USB connector to directly allow communication with any type and size of computer (e.g. PC, raspberry PI, dreamplug, ...) having an USB port on one side and at the other end the microcontroller and the FGPA. This communication is based on an ASCII-based protocol in view of easy implementation in detector control systems like e.g. EPICS and LabVIEW.

• Summarizing:
  • Microcontroller: ATMEL AT90CAN128
    • I²C
    • CANbus
    • SPI
    • ADCs
    • ...
  • FPGA: Lattice MachX02-1200-HC
  • FTDI USB to serial UART interface
    • USB 2.0 connector
    • Power over USB
  • I²C devices
    • 6 × Single-Channel 1-Wire Master
    • 1 × 8-channel I²C-bus multiplexer with reset
    • 2 × 4-channel 8-Bit DAC - Digital-to-Analog Converter
  • galvanically isolated CAN - High-speed CAN Transceiver
    • optional external power supply
  • 2 × Rotary Code Switches, hexadecimal coding
  • Reset Button for ATMEL
  • 11 × LED's, free programmable

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-- PeterZumbruch - 25 Nov 2013