Fpga-gen-new

Development of Multiple Frequency Generator

System expandable from ~150 to ~1000 Frequency outputs

• For each frequency output:

Digital signal

Rectangle pulses with duty cycle 50%

Amplifier

Logic inputs

rectangle outputs +-12

Symmetrical to 0 V level

Frequency signals to 2.54mm pin-strip connectors

No antenna or termination

Frequency range 1 Hz to 10 MHz

Resolution 1 Hz

System 1

Stanalone, no SD card

• CPU board
• One FPGA board
• Amplifier board
• Keyboard 4 x 4
• LCD 4 x 20
• PSU
• Portable Box
• ~100 Outputs ???

System 2

Stack-able

• Main box

• CPU board
• FPGA board
• Amplifier board
• LCD 4 x 20
• 4 Keys
• micro-SD
• RS232
• PSU

ATX

• Expansion Box

• FPGA board
• Amplifier board
• Up to 4 Expansion boxes
• Up to 1000 outputs

Boards

• CPU board

• Dimensions ~120 x 100 mm
• ARM-Cortex 32bit CPU

USB

RS232

SPI

micro-SD

LCD 4x20

Keyboard 4x4 or

4 Keys

In circuit Programing

RS232

USB

JTAG

• FPGA board

• Dimensions ~120 x 100 mm
• 150-200 Outputs

Controlled from serial channel

• Expandable from serial channel

More FPGA boards connected to increase the number of outputs

• In circuit programming:

JTAG

• Amplifier board

• Dimensions ~120 x 100 mm

Same dimensions and plug-ed on top of FPGA board

• 150-200 channels, the same number with FPGA outputs

Logic inputs 0-3.3V

Rectangle outputs symmetrical to 0V:

+-12 (??? +-40V)

Outputs on Dual Row 2.54mm Pin-strips

Software

• CPU firmware

Controls the FPGA boards from serial channel

Communicates with PC from RS232

Controls the LCD 4x20

Display

Company Logo

Name of 'Frequencies-Program'

Duration in sec

Step number

Executes 'Frequencies-Program from micro-SD

User Interface: LCD and 4 keys [START STOP UP DOWN]

Executes 'Frequencies-Program controlled from PC

User Interface from PC

• FPGA firmware

One different frequency to every Output Pin

Frequency resolution 1 Hz

Frequency accuracy x ppm

Frequency drift y ppm, depended on Crystal

Frequency range 1 Hz to 10 MHz

SPI serial channel

FPGA is controlled from CPU via SPI

• PC Software

Visual, Windows-style user Interface

Communicates from RS232 with CPU board

Opens text file with set of 1000 Frequencies

Applies processes to the set of frequencies

Invert

Offset

Duration (sec)

Up

Down

Straight

Max frequency deviation +-100 Hz

The processed set of Frequencies (named Program) can be:

Stored to file on disk

Stored on micro-SD to be used by CPU

Send to CPU board via RS232

micro-SD

Uses Windows file system

Contains one or more Programs

Content is Encrypted with custom algorithm

The Content of the Program is not readable by unauthorized