ADVANCED VEHICLE TECHNOLOGIES, Inc.

AVT-423
Hardware Revision Descriptions
Order Number Descriptions
Photos
Updated: 8 January 2021
Notes

General Description
Multiple interface.
Communications to the client computer via Ethernet.
It is equipped with the following:
CAN0: 2-wire, (non-FD).
CAN1: 2-wire or Single Wire (software selected), (non-FD).
CAN2: 2-wire (CAN-FD).
CAN3: 2-wire (CAN-FD).
LIN0: LIN or KWP.
LIN1: LIN or KWP.

The AVT-424 LIN Expansion mezzanine board is now available.
It adds six channels of LIN communications to the AVT-423.
It can be quickly added to an AVT-423 rev. "F" board.

Flexray (hardware capability exists, but no firmware support).
Flexray will never be developed.

Hardware Configuration
The default hardware configuration of the board is rev. "DA"  or "FA".
The hardware configuration is noted in the white "Rev" block on the top of the board.
Some hardware configurations are listed below. Other configurations are available, ask us.
A unique revision level and order number will be assigned for each unique hardware configuration requested.


PC Board Revision

PC Board Revision

The revision of the PC board is noted in copper on the bottom of the board.
It only changes when the board is redesigned.

PC Board Revision A0

1 February 2016.
Original board design.
Qty. 2 built.
Never released for production. Prototypes only.
"A1" - Remove R41. Remove R44.
"A2" - Connect NB-PD2 (NB-P2-32) to NB-UART1_RX (NB-P2-21) to monitor state of LIN0 bus. Connect NB-PD3 (NB-P2-37) to NB-UART2_RX (NB-P2-31) to monitor state of LIN1 bus.

PC Board Revision B
18 February 2016.
Changes: Corrected the 3.3 vdc converter (it was upside down); added R53 to Port F0 for ISR timing measurements; Re-sized the board to fit a Hammond RM2055M enclosure.
Qty. 2 built.
Never released for production. Pre-production only (early May 2016).
"B1" - Remove R41. Remove R44.
"B2" - Remove R41. Remove R44. Connect NB-PD2 (NB-P2-32) to NB-UART1_RX (NB-P2-21) to monitor state of LIN0 bus. Connect NB-PD3 (NB-P2-37) to NB-UART2_RX (NB-P2-31) to monitor state of LIN1 bus.
"B3" - Connect NB-PD2 (NB-P2-32) to NB-UART1_RX (NB-P2-21) to monitor state of LIN0 bus. Connect NB-PD3 (NB-P2-37) to NB-UART2_RX (NB-P2-31) to monitor state of LIN1 bus. Replace U23 with a NCP7805TG fixed three-terminal voltage regulator (very little +5v supply needed, linear regulator is more than adequate).

PC Board Revision B2
Date unknown.
Changes:
Corrected the 3.3 vdc converter (again); updated footprints of both DC/DC converters.
None were built.
Pre-production only (early May 2016).

PC Board Revision C
Late May 2016.
Changes:
Added the solid state relays (switches) to the CAN termination network for all four CAN channels.
Qty. 100 built.

PC Board Revision D
January
2018.
Changes:
Corrected wiring issues with LIN bus monitor and control signals.
Qty. 300+ built.

PC Board Revision F
December 2020.

Changes:
Added P10 to accommodate the comms signals to the AVT-424 LIN Expansion mezzanine board.
Added JP1 and JP2 to allow an alternate source for the VBATT supply for LIN0 and LIN1.
Qty. 100 built (so far).


Circuit Configuration - for board rev. "F" only


The "PC board revision" is noted in copper on the bottom of the board.

The "Circuit Configuration Revision" is noted in the white block on the top of the board.

Revision
Notes
CAN0  (non-FD)
CAN1  (non-FD)
CAN2  (FD) CAN3  (FD) LIN0 or KWP0
(Channel 7 or 8)
LIN1 or KWP
(Channel 5 or 6)
AVT-424 Flexray
FA
. 2-wire
(ISO11898)
2-wire (ISO11898)
or SWC
[software selected]
2-wire
(ISO11898)
2-wire
(ISO11898)
Installed
Installed. Not installed. Not installed.
FB Will never be available.







(note 1)
FC (note 2) 2-wire
(ISO11898)
2-wire (ISO11898)
or SWC
[software selected]
2-wire
(ISO11898)
2-wire
(ISO11898)
Installed
Installed. Installed.
Not installed.
FD (note 3) 2-wire
(ISO11898)
2-wire (ISO11898)
or SWC
[software selected]
2-wire
(ISO11898)
2-wire
(ISO11898)
Installed.
Installed.
Installed.
Not installed.

NOTES


1 - Flexray will never be available.
2 - Install mating sockets (P4, P5, P6, P7, P8, P9, P10) for AVT-424 LIN expansion board.  Install the AVT-424 LIN Expansion board.
3 - Add modifications of note 2 (above).
Perform the following modifications to separate the VBATT supply for LIN0 and LIN1.
Top of board.
Cut the tracks between JP1 pins 1 and 2.
Cut the tracks between JP2 pins 1 and 2.
Install a jumper wire at JP1 pins 2 and 3.
Install a jumper wire at JP2 pins 2 and 3.
LIN0 supply is now on P3 pin 8.
LIN1 supply is now on P3 pin 9.
4 - xxx.
5 - xxx.
6 - xxx.


Circuit Configuration - for board rev. "D" only


The "PC board revision" is noted in copper on the bottom of the board.

The "Circuit Configuration Revision" is noted in the white block on the top of the board.

Revision
Notes
CAN0  (non-FD)
CAN1  (non-FD)
CAN2  (FD) CAN3  (FD) LIN0 or KWP0
(Channel 7 or 8)
LIN1 or KWP
(Channel 5 or 6)
Flexray
DA
. 2-wire
(ISO11898)
2-wire (ISO11898)
or SWC
[software selected]
2-wire
(ISO11898)
2-wire
(ISO11898)
Installed.
Installed. Not installed.
DB Will never be available.
2-wire
(ISO11898)
2-wire (ISO11898)
or SWC
[software selected]
2-wire
(ISO11898)
2-wire
(ISO11898)
Installed. Installed. (note 1)
DC Only one ever built.
(note 2)
2-wire
(ISO11898)
2-wire (ISO11898)
or SWC
[software selected]
2-wire
(ISO11898)
2-wire
(ISO11898)
Installed.
Installed. Not installed.
DD Only one ever built.
(note 3)
2-wire
(ISO11898)
2-wire (ISO11898)
or SWC
[software selected]
2-wire
(ISO11898)
2-wire
(ISO11898)
Installed.
Installed. Not installed.

NOTES


1 - Flexray will never be available.
2 - Added mating sockets (P4, P5, P6, P7, P8, P9) for AVT-424 LIN expansion board.  Added the following wires from the AVT-423 board to AVT-424 P3.
                U18-93 --- (red) --- P3-1
                U18-92 --- (blu) --- P3-2
                U18-91 --- (wht) --- P3-3
                U18-94 --- (yel) --- P3-4
                R45-1 (opposite J4-4) --- (yel) --- P3-5
                U18-6 --- (wht) --- P3-6
3 - Added modifications of note 2 (above).
Performed the following modifications to break out the LIN bus supply.
Top of board.  Cut the following tracks between:
                D17 cathode & D6 anode.
                D6 anode & D5 anode.
                D5 anode & D4 anode.
Top of board.  Add the following wires, between:
                D5 anode to P3-8.  (LIN0 transceiver)
                D6 anode to P3-9.  (LIN1 transceiver)
                D4 anode to D17 cathode.  (SWC transceiver)
4 - xxx.
5 - xxx.
6 - xxx.


Circuit Configuration - for board rev. "C" only

The "PC board revision" is noted in copper on the bottom of the board.

The "Circuit Configuration Revision" is noted in the white block on the top of the board.

Revision
Notes
CAN0  (non-FD)
CAN1  (non-FD)
CAN2  (FD) CAN3  (FD) LIN0 or KWP
(Channel 5 or 6)
LIN1
(Channel 7)
Flexray
CA
Mod note 3. 2-wire
(ISO11898)
2-wire (ISO11898)
or SWC
[software selected]
2-wire
(ISO11898)
2-wire
(ISO11898)
Installed
Installed Not installed.
CB Mod note 3. 2-wire
(ISO11898)
2-wire (ISO11898)
or SWC
[software selected]
2-wire
(ISO11898)
2-wire
(ISO11898)
Installed Installed Installed
(note 2)

NOTES


1 - Can be added at a later date.  Additional hardware costs will apply.
2 - Hardware and software not available at this time.
3 - Remove R41. Remove R44. Install wire P2-32 to P2-21. Install wire P2-37 to P2-31. Replace U23 with NCP7805TG4.
4 - xxx.


Order Number Descriptions


AVT-423-006 : AVT-423 interface board, installed in enclosure.
Status: Normally a stock item.

AVT-423-007 : AVT-423 interface board only, no enclosure.
Status: Normally a stock item.

AVT-423-047 : AVT-423 interface board rev. 'FD', no enclosure..
Status: Call the factory for status and lead time.


Photos

AVT-423 rev DA     AVT-423 rev DA
AVT-423 rev. "DA" board only.


AVT-423 in enclosure AVT-423  in enclosure
AVT-423 board in enclosure.


AVT-423 rev FB     AVT-423 rev FB
AVT-423 rev. "FB" board only.


AVT-423 with 424 installed     AVT-423 with 424 installed
AVT-423 rev. "FB" board with AVT-424 installed.


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