DCCMFL1616
The DCCMFL1616 is a family of DCC Multi-Functional locomotive decoders based on the ATtiny1616 microprocessor.
The basic schematic for all the controllers are the same except the interface / connector to the locomotive.
All electronics designs were created with KiCAD and are licensed under the EUROPEAN UNION PUBLIC LICENCE v. 1.2
The firmware to run these decoders is available in antother repository on our git-server.
Versions available
DCCMFL1616_660
The DCCMFL1616_660 is designed according to NEM standard 660 and to be used with an 21MTC interface.
Hardware
Absolute maximum ratings
| Parameter | Value |
|---|---|
| max. rail voltage | 30V |
| max. total system current | 1A |
| max. current 5V rail | 600mA |
| MCU operating voltage | 5V |
| MCU nax. operating current | 200mA |
| MCU max. current per pin | 20mA |
Operating characteristics
| Parameter | Min. | Max. | Unit |
|---|---|---|---|
| rail voltage | 8 | 24 | V |
| current per I/O pin | 0 | 5 | mA |
Connections
Programming and debugging interface
Additionally, there is a pin-connector for programming and debugging (UDPI for programming, UART for debugging).
| Pin on DCCMFL1616 | Pin on Arduino |
|---|---|
| UPDI | 6 |
| VCC | 5V |
| GND | GND |
| RX | RX |
| TX | TX |
- Upload DCCMFL1616 firmware using JTAG2UPDI-Firmware uploaded to your Arduino.
- debug decoder using UART on TX/RX pins using DCCMFL1616 firmware with DEBUG-statements enabled and the Arduino RESET pin connected to GND.