Arduino development board for interfacing Chrysler's legacy CCD/PCI-bus.
Designed by Boundary Condition in Hungary
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Current hardware version: v3.0.0 Important notice It is highly recommended to connect a large capacitor (50V 470uF) between the BATT and GND pins to prevent voltage spikes from the starter/alternator…
Read More…It is highly recommended to connect a large capacitor (50V 470uF) between the BATT and GND pins to prevent voltage spikes from the starter/alternator to damage the board.
This product is NOT a protocol translator device. The board merely houses separate CCD- and PCI-bus transceivers. User have to implement their own translation logic if they wish to use it in such manner.
As a successor of CCDBusTransceiver this development board is designed to copy the functionality of commercial CCD/PCI-bus transceiver chips found in early FCA passenger vehicles. A 3.3V or 5V logic microcontroller with at least 2 UART-channels is required as the host. Tested on Arduino Mega.
Arduino library and examples for CCD-bus and PCI-bus.
1983-2003 Chrysler/Dodge/Jeep
| Pin | Name | Function | Note |
|---|---|---|---|
| 1 | x | Not connected | |
| 2 | VCC | MCU logic voltage | 3.3V or 5V (power input only) |
| 3 | GND | Power supply ground | |
| 4 | PTX | PCI-bus TX | Data output (VPW symbols) |
| 5 | PRX | PCI-bus RX | Data input (VPW symbols) |
| 6 | CIDL | CCD-bus IDLE | Connected to CTX |
| 7 | CTX | CCD-bus TX | Data output (UART) |
| 8 | CRX | CCD-bus RX | Data input (UART) |
| 9 | TBEN | CCD-bus termination and bias | GND/Floating=on (default), VCC=off |
| 10 | x | Not connected | |
| 11 | CCD- | J1962-11 (OBD2) | J1567 CCD- differential signal |
| 12 | CCD+ | J1962-3 (OBD2) | J1567 CCD+ differential signal |
| 13 | PCI | J1962-2 (OBD2) | J1850 VPW signal |
| 14 | GND | J1962-4 (OBD2) | Chassis ground |
| 15 | BATT | J1962-16 (OBD2) | Battery positive |
| 16 | x | Not connected |
Arduino Mega pintout:
| Pin | Name | Arduino Mega | OBD2 connector |
|---|---|---|---|
| 2 | VCC | +5V | |
| 3 | GND | GND | |
| 4 | PTX | D9 | |
| 5 | PRX | D2 | |
| 6 | CIDL | D3 | |
| 7 | CTX | RXD1 | |
| 8 | CRX | TXD1 | |
| 9 | TBEN | D4 | |
| 11 | CCD- | J1962-11 | |
| 12 | CCD+ | J1962-3 | |
| 13 | PCI | J1962-2 | |
| 14 | GND | J1962-4 | |
| 15 | +12V | J1962-16 |
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