Table of Contents

CAN-GCLN Firmware

Content → Hardware → mergCBUS


cangcln-sch.jpg

Copyrights


I/O

Port I/O Description
RA0 I FLiM Button
RA1 O Debug LN scan freq.
RA6,7 R Resonator
RB2 O CAN Tx
RB3 I CAN Rx
RB4 O LED1 CBUS transmit
RB5 O LED2 CBUS receive
RC2 O LED5 LocoNet transmit
RC3 O LED6 LocoNet receive
RC4 O LED3 Running
RC5 O LED4 FLiM mode
RC6 O LocoNet Tx
RC7 I LocoNet Rx


IDs

NMRA Manufacturer ID 70
Product ID 56
Default node number 56
Default CanID 56

Node Variables

# Description
1 node configuration
2 CAN-ID


Node configuration byte

Revision 425+

Bit Default Function Remark
0x01 off Read only One way traffic from LocoNet to CBUS
0x02 off Send CBUS sensor events
0x04 off SoD Translate SoD event to LocoNet


Node Events

Revision 435+

Event# Description Variable
0 SOD not used
1 Switch start event number not used
2 Switch end event number not used
3 Sensor start event number not used
4 Sensor end event number not used


Supported OPCs 1a

CBUS Direction LocoNet Remark
OPC_RTON ↔ OPC_GPON Track power
OPC_RTOF ↔ OPC_GPOFF Track power
OPC_RESTP → OPC_IDLE Emergency break
OPC_ASON, OPC_ASOF ← OPC_INPUT_REP Sensor/Input report
OPC_ASON, OPC_ASOF ← OPC_SW_REQ, OPC_SW_STATE Switch request
OPC_ACON3 ← OPC_LISSY_REP Uhlenbrock IR-Reader
OPC_ACON3, OPC_ACOF3 ← OPC_MULTI_SENSE Digitrax Transponding
OPC_ASRQ (4711) → OPC_SW_REQ (1017) Start of Day
OPC_ACON, OPC_ACOF, OPC_ASON, OPC_ASOF → OPC_SW_REQ See filter range for switch requests.
OPC_ACON, OPC_ACOF, OPC_ASON, OPC_ASOF → OPC_INPUT_REP See filter range for sensor/input reports.
OPC_FCLK → OPC_WR_SL_DATA Fast clock in slot 123
0xEA ← LocoNet read error Debugging


Lissy example trace: 

20120608.154904.282 r9999c lnreader lnmon    1486 Lissy 6: Loco 2418 moving north
20120608.154904.283 r9999I lnreader OLocoNet 0513 lissy=6 ident=2418 dir=0
20120608.154904.288 r9999I cbreader OCBUS    0179 [056] evaluate OPC=0xF0
20120608.154904.288 r9999c cbreader OCBUS    0926 IR short event 6 loco=2418 dir=rev (node=0)


Address mapping

Read the Addressing page for more information about addressing schemes.

CBUS (FADA) → LocoNet (MADA) Remark
address (divided by) 2 → port
address (modulo) 2 → gate In the GCA50 setup the gate is referred by the C2 option.


LocoNet (PADA) → CBUS (FADA)
(port-1) (multiplied by) 2 + gate


gate value
red 0
green 1


Example

CAN-GC2
CBUS LocoNet
Address= 8, Port=0 Address=0, Port=5, Gate=red


Files

Sources

HEX


TODO