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Scroll Title
titleFirmware modes

Mode

Enter

Description

Exit

COM

Power cycle or exit from CLI mode

Default mode. Provide Virtual COM port interface to FPGA.

Change Baudrate/Parity (CLI / EEPROM Write / Flash Write)

CLI

Baudrate = 123456

Command Line Interface. Provide set of module management commands.

Power cycle (COM).
Change Baudrate/Parity (EEPROM Write / Flash Write).
'quit' command (COM)

EEPROM Write

Baudrate = 222222 Parity = Odd

Received data written by I2C interface to EEPROM.

Power cycle (COM).
Change Baudrate/Parity works, but not recommended.

Flash Write

Baudrate = 333333 Parity = Even

Received data written to SPI Flash.

Power cycle (COM).
Change Baudrate/Parity works, but not recommended.

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Command Line Interface mode

CLI mode provide wide set of commands to manipulate module.
To enter CLI mode, switch COM port "Baudrate" to "123456".
In this mode firmware read user input and process commands. Commands is case sensitive and should be lower-case. "Backspace" can be used for command line correction. "Enter" with empty command line cause re-execution of previous command.

Scroll Title
titleCLI mode command set

Command

Description

ver

Print firmware version

power off

Disable FPGA power supply

power on

Enable FPGA power supply

flash status

Print SPI Flash Status registers

flash id

Print SPI Flash IDCODE

flash erase

SPI Flash "Bulk erase"

flash unlock

Clear SPI Flash "Status register"

flash read

Read data from SPI Flash

fpga status

Print status of FPGA pins

fpga reset

Reset FPGA

quit

Quit from CLI mode to COM mode

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"ver" command

The "ver" command print firmware version and build date.
Example:
> ver
1.01 beta
Build Oct 12 2012 13:02:34

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"power off" command

The "power off" command disable FPGA power supply.
Example:
> power off
OK

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"power on" command

The "power on" command enable FPGA power supply
Example:
> power on
OK

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"flash status" command

The "flash status" command read and print SPI Flash "Status register 1" and "Status register 2" values. Please refer your Flash datasheet to registers bit layout.

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Example:
> flash status
SR1 00 SR2 00

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"flash id" command

The "flash id" command read and print first 3 bytes from result of SPI Flash "READ IDENTIFICATION" command.

Scroll Title
title"READ IDENTIFICATION" result layout

Byte

Description

1

Manufacturer ID

2

Memory Type

3

Memory Capacity

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Scroll Title
titleFlash IDCODEs

Flash

Manufacturer ID

Memory Type

Capacity

M25P32

20h - Micron

20h

16h

W25Q64FV

EFh - Winbond

40h

17h

...

Example:
> flash id
IDCODE EF4017
W25Q64FV

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"flash erase" command

The "flash erase" command execute SPI Flash "Bulk Erase" command. Processing of this command usually require some time. User should wait command to complete before power off module or enter next command. Refer your Flash chip datasheet for maximum required time.

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Example:
> flash erase
Done

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"flash unlock" command

The "flash unlock" command write zero value to status register. This command can be used to clear protection bits. Refer to your Flash chip datasheet for status register layout.

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Example:
> flash unlock
Done

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"flash read" command

The "flash read" command read and print data from SPI Flash. Firmware read 8 bytes of data from current flash address and increment address to 8 after execution.

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Example:
> flash read
FF FF FF FF FF FF FF FF
>
FF FF FF FF FF FF FF FF
>
AA 99 55 66 30 A1 00 07
>
20 00 31 A1 06 28 31 41
>
3D 00 31 61 89 EE 31 C2

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"fpga status" command

The "fpga status" command print FPGA pins information. Information printed in 6 chars sequence {d|D}{i|I}{s|S}{p|P}{|0}{|1}.

Scroll Title
title"fpga status" FPGA pins information printed in 6 chars sequence

Char

Value

Description

1

d

"Done" pin is 0

 

D

"Done" pin is 1

2

i

"Init" pin is 0

 

I

"Init" pin is 1

3

s

FPGA Power supply disabled

 

S

FPGA Power supply enabled

4

p

"PROG_B" pin is 0

 

P

"PROG_B" pin is 1

5

-

"Int0" pin is 0

 

0

"Int1" pin is 1

6

-

"Int1" pin is 0

 

1

"Int1" pin is 1

Example:
> fpga status
DISP--

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"fpga reset" command

The "fpga reset" command execute FPGA reset sequence by driving FPGA PROG_B pin low and high after some delay. This command also disconnect FX2 microcontroller from SPI bus to allow FPGA boot from SPI Flash.
Example:
> fpga reset
Done

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"quit" command

The "quit" command switch firmware to COM mode, which allow communication with FPGA. Use "power on" command and/or "fpga reset" command before this command if needed.

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EEPROM Write mode

On-board EEPROM chip contain FX2 microcontroller firmware. To update EEPROM content, several steps required:

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For Windows OS this sequence can be done using "bat" file.
mode.com COM1: PARITY=O BAUD=222222
copy /b new_firmware.iic COM1:
This example write "new_firmware.iic" file content to EEPROM using COM1 port. Refer your OS information for right COM port numberWindows can work incorrectly with high port numbers. Change COM port number to COM1-COM4 if you face this problem..

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Flash Write mode

On-board Flash chip contain FPGA bitstream. To update Flash content, several steps required:

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