MERG Logo

Model Electronic Railway Group

Leading Model Railway Electronics since 1967

Celebrating 50 years of Innovation: 1967-2017

MERG DCC System - Downloads

Last updated 23 January 2011

Copyright for items on this page is retained by the authors identified.


The use or misuse for the sale, design, supply, process, installation, delivery, test, repair, servicing, and alteration of the designs, instructions, computer code, photographs, circuits, and any other information that appear on this web site is entirely at the risk of the user or visitor to the web site. The information is made available in good faith without warranty of any kind strictly on the basis that no liability will attach to the Model Electronic Railway Group (MERG), its officers and members.

These pages are a resource area for projects members are working on or have completed and wished to make publicly available. Some of these projects have resulted in MERG kits but nothing on these pages should be taken as definative information about the kits, members should check the kit pages for up to date information on the kits.


The files in the matrix below provide the information needed to construct the MERG dcc system. For anyone having trouble downloading the source code .asm files I have included them in .zip packages.  (The .zip includes all files for the item concerned).

 

New DCC system

Description
Parts list
Schematic PCB layout Component layout Source code
Hex code
CBUS Command Station (CANcmd) - Full zip file
CMD_parts.xls
15-Aug-10
CANcmd_sch.pdf
15-Aug-10
CANcmd_pcb.pdf
15-Aug-10
Image CANcmd_j.hex
15-Aug-10
CBUS Hand Controller (CAB1) - Full zip file
CAB_Insts.pdf
Cab_parts.xls
15-Aug-10
CAB1A_sch.pdf
15-Aug-10
CAB1F_pcb.pdf
15-Aug-10
n/a CAB1u.asm
15-Aug-10
New Booster (NB1B)
Description.pdf
23-Jan-11
Schematic.pdf
23-Jan-11
Layout.pdf
23-Jan-11
Image
17-Aug-07 (This is NB1A)
n/a

 

Original system

Click here for old MERG DCC system overview PDF

Description
Parts list
Schematic PCB layout Component layout Source code
Hex code
Combined Command Station, Booster and Power Supply (BC1A) - bc1a.zip - MERG kit 42
bc1adoc.pdf
6-Jan-01

bc1apart2.xls
12-Dec-02
bc1asch-e.pdf
7-Apr-04
bc1a-epcb.pdf
7-Apr-04
  bc1a_2.asm
11-Feb-06

bc1a_2.hex
23-Feb-06
Hand Controller - Mark 2 hs2.zip - MERG kit 43
Parts list.xls
24-Feb-03
Schematic.pdf
8-Jan-03
hs2bpcb.pdf
hs2bcut.pdf
8-Jan-03
hs2lbl1.pdf
hs2blay.pdf
8-Jan-03
 
New Booster - NB1A
Description.pdf
12-Feb-09
Schematic.pdf
11-May-10
Layout.pdf
10-May-10
Picture.jpg
17-Aug-07
 
Original Command Station - dcc8.zip
dcc81.pdf
28-Nov-99
dccstn8d.pdf
8-Jul-99
dcc8stnu.pdf
22-Nov-99
  dcc8g.asm
dcc8g.hex
29-Feb-00
Booster - booster.zip
booster.pdf
7-Jul-99
boost5g.pdf
7-Jul-99
b5pwrstg.pdf 
7-Jul-99
b5pcb.pdf.
7-Jul-99
boost5.pcb
   
Original Hand controller - hsc.zip
dcc8hscl.pdf 
20-Jan-00
hsparts.xls 10-May-01
hsparts.htm 10-May-01
dcc8hsd.pdf  
29-Jan-01
dcc8hsg3.pdf.
29-Jan-01 
hsspcb.pdf
8-Jul-99
dcc8hsg6.pcb
8-Aug-02
hslbl.pdf
hslblm3.pdf
20-Jan-00
hslblkn.gif
8-Aug-02
 
Accessory Encoder (updated) - ace2b.zip - MERG kit 51
ace2btxt.pdf
1-Apr-03
ace2parts.xls
1-Apr-03
ace2bsch.pdf.
1-Apr-03
ace2bpcb.pdf
1-Apr-03
  ace3a.asm
ace3a.hex
18-Jan-06
Accessory Encoder PC adapter board - MERG kit 54
APC1_txt.pdf
18-Aug-08
APC1_sch.pdf
10-Nov-05
APC1_pcb.pdf
10-Nov-05
  Ace_PC1.asm
Ace_PC1.hex
18-Aug-08
Auto reverse and cutout module (ARC) arc.zip
arc.pdf
26-Jan-02
arcparts.xls
31-Jan-02
arc1sch.pdf
26-Jan-02
arc1pcb.pdf
26-Jan-02
  arc1.asm
26-Jan-02
arc1.hex
26-Jan-02
Cutout module (BCO1) - BCO1.zip
Description.pdf Schematic.pdf Circuit board.pdf   Software
Hex file,
ASM file
Cut out and detection module (BDC1)
Description .pdf Schematic.pdf Board.pdf Picture.jpg  
Block Occupancy Detector (BOD1)
Description.pdf Schematic.pdf Board.pdf Picture.jpg  
Loco Decoder dec10-11.zip
decoder2.pdf
26-Apr-00
make101.pdf
26-Apr-00
INTDEC10version103.pdf
3-Feb-01
decod10b.pdf
3-Apr-00
dec10bpc.pdf
7-Apr-00
dec10pc2.pdf
7-Apr-00
decod10d.asm
decod10d.hex
8-Feb-01
mbint105.asm
mbint105.hex
27-Jan-04
16f628.asm
1-Apr-03
Small loco decoder - dec10-11.zip
As loco decoder above dec11sch.pdf
14-Jun-00
dec11pcb.pdf
28-Apr-00
dec11pc2.pdf,
20-Apr-00
As loco decoder above
Small loco decoder with feedback and stealth - dec12-13.zip
dec131tx.pdf
9-May-02
dec131~1.pdf
10-Jan-03
de12dsch.pdf
27-Apr-01
de12dpcb.pdf
27-Apr-01
  dec133a.asm
dec133a.hex
14-Mar-03
Loco decoder with feedback and stealth - dec12-13.zip
As small loco decoder above decod13.pdf
10-May-01
dec13pcb.pdf
10-May-01
  As small loco decoder above
Flash unit - flash.zip
flash.pdf
5-Feb-02
flashsch.pdf
5-Feb-02
flashpcb.pdf
5-Feb-02
  flash12a.asm
17-May-02
flash12a.hex
Accessory decoder (ACC6) - revised version for Fulgurex etc point motors
ACC6_txt.pdf
04-Feb-07
ACC6_sch.pdf
04-Feb-07
ACC6_pcb.pdf
04-Feb-07
  Acc6_3.asm
23-Mar-07
Acc6_3.hex
Accessory decoder (ACC2) - acc.zip - MERG kit 52
acc2btxt.pdf
1-Apr-03
acc2parts.xls
1-Apr-03
acc5txt.pdf
6-Aug-05
acc2bsch.pdf
1-Apr-03
acc2bpcb.pdf 
4-Jun-03
  acc4.asm
acc4.hex
6-Aug-05
acc5.asm
acc5.hex
6-Aug-05
dbacc5.asm
dbacc5.hex
11-Nov-01
Accessory decoder for Tortoise etc (ACC3) - MERG kit 53
  acc3sch.pdf
13-Feb-03
acc3pcb.pdf
13-Feb-03
  As above
Programmer - prog.zip - MERG kit 41
Operating instructions
7-Jan-07
prognlb.pdf
15-Jul-99
progpa~1.pdf
12/12/02
dccprog1.pdf
15-Jul-99
dccprog2.pdf
15-Jul-99
progpcb.pdf 
22-Jul-99
prog.pcb
Box label and cutting template
23-Jun-08
for 16F84 (obsolete)
progg1H.asm
07-Jan-07
progg1H.hexfor 16F628A (current)
progg2K.asm
21-Sep-08
progg2K.hex

Mike Bolton