Contents
1. Principle of Operation 1
1.1 Overview ..........................................................................................................................1
1.2 What is Included ...............................................................................................................1
1.3 Powering the Unit .............................................................................................................2
1.4 Navigating the Menus ......................................................................................................3
1.5 Setting up a Measurement ...............................................................................................5
1.6 Making a Measurement ....................................................................................................6
2. Settings 7
2.1 Description of Counting Process ......................................................................................7
2.2 Coin Window ....................................................................................................................8
2.3 Dwell Time .......................................................................................................................8
2.4 Gate Chan. .......................................................................................................................8
2.5 Subtract Acc.? ..................................................................................................................8
2.6 Trigger ..............................................................................................................................9
2.7 CH1 Delay ........................................................................................................................9
2.8 Firmware ..........................................................................................................................9
3. Serial Interface 10
3.1 Serial Interface Setup .....................................................................................................10
3.2 Programming Commands ..............................................................................................10
3.3 Sample Code .................................................................................................................11
4. Customization 12
4.1 Overview ........................................................................................................................12
4.1.1 The Rabbit RCM3400 Microprocessor .....................................................................13
4.1.2 The Altera Cyclone IV FPGA ...................................................................................13
4.1.3 Default Firmware ......................................................................................................13
4.2 Uploading Custom Firmware ..........................................................................................14
4.2.1 Accessing the Programming Ports ...........................................................................14
4.2.2 Programming the Rabbit RCM3400 .........................................................................15