FTC305 CAN/OBD

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General CAN settings

User can set up manual or automatic baud rate and termination resistor for each CAN line for his device in general CAN settings

Parameter list

PARAMETER NAME	PARAMETER ID	DESCRIPTION	VALUES
Baudrate selection	181	Automatic Baudrate detection allows user to detect baudrate automatically. Manual Baudrate allows user to select baudrate manually.	0 = Auto Automatic Baudrate detection allows user to detect baudrate automatically. 1 = Manual Manual Baudrate allows user to select baudrate manually.
Nominal baudrate (kbps)	182	Nominal baudrate selection from 33 to 2000 kbps (9 possible values).	0 = 33 kbps 1 = 50 kbps 2 = 83 kbps 3 = 100 kbps 4 = 125 kbps 5 = 250 kbps 6 = 500 kbps 7 = 666 kbps 8 = 1000 kbps
Data baudrate (kbps)	183	Data baudrate selection from 33 to 2000 kbps. Available only with FDCAN. (10 possible values)	0 = 33 kbps 1 = 50 kbps 2 = 83 kbps 3 = 100 kbps 4 = 125 kbps 5 = 250 kbps 6 = 500 kbps 7 = 666 kbps 8 = 1000 kbps 9 = 2000 kbps
Termination resistor	184	Termination resistor parameter allows to control 120 Ohm termination resistor.	0 = Disable Disable termination resistor 1 = Enable Enable termination resistor

Manual CAN

Note: Before using Manual CAN, make sure to select the correct CAN settings in General CAN settings section.

The user can configure 70 Manual CAN I/O element by setting Priority, CAN Type, CAN ID, Data Mask, Operand. Each CAN I/O has its own parameters and can be configured independentely.

When configuring CAN IO elements, each parameter (like priority, operand, CAN type, CAN ID, etc.) requires a unique configuration ID. These IDs follow specific formulas to ensure no overlap with other parameters in the system. This guide explains how to calculate them.

Formula:

Parameter_ID = 1,000,000 + (AVL_ID * 100) + OPTION Parameter_ID = 1,000,000 + (AVL_ID * 100) + OPTION

1,000,000: Base offset for CAN-related parameters.
AVL_ID: The CAN AVL IO element identifier (within certain allowed ranges).
OPTION: A small integer offset indicating which setting is being adjusted (e.g., priority or operand).

Valid AVL Ranges

[10216:10235]
[10298:10347]

Example: If AVL_ID is 10216 and the OPTION for “priority” is 1, then Parameter ID=1,000,000+(10216×100)+1=1,000,000+1,021,600+1=2,021,601

MCAN IO Parameter Calculation

For MCAN IO elements (e.g., MCAN0, MCAN1, MCAN2…), each has three specific parameters: CAN Type, CAN ID, and Data Mask. The MCAN IO number is the index of the MCAN entry (starting at 0, 1, 2, etc.).

Formulas 1. CAN Type Parameter ID=17,000+(10×MCAN IO number) 2. CAN ID Parameter ID=17,001+(10×MCAN IO number) 3. Data Mask Parameter ID=17,002+(10×MCAN IO number)

Examples

MCAN0 (IO number = 0):
- CAN Type: 17000 + (10 × 0) = 17000
- CAN ID: 17001 + (10 × 0) = 17001
- Data Mask: 17002 + (10 × 0) = 17002
MCAN1 (IO number = 1):
- CAN Type: 17000 + (10 × 1) = 17010
- CAN ID: 17001 + (10 × 1) = 17011
- Data Mask: 17002 + (10 × 1) = 17012
MCAN69 (IO number = 69):
- CAN Type: 17000 + (10 × 69) = 17690
- CAN ID: 17001 + (10 × 69) = 17691
- Data Mask: 17002 + (10 × 69) = 17692

Putting It All Together
1. Check Your AVL ID Range

If your CAN IO element has an AVL ID in [10216–10235] or [10298–10347], use the first formula for Parameter_ID = 1,000,000 + (AVL_ID * 100) + OPTION.

2. Identify Your MCAN IO Number

If you have an MCAN entry (e.g., MCAN0, MCAN1), use the second set of formulas to find the corresponding CAN Type, CAN ID, and Data Mask parameter IDs.

3. Plug In the Numbers

Calculate step by step, ensuring you add the correct base offsets and multipliers.

4. Configure Your Device

Once you have the parameter IDs, set or modify them in your configuration tool to match the desired priority, operand, or other CAN-related settings.

Manual CAN Commands

Note: Before using Manual CAN, make sure to select the correct CAN settings in General CAN settings section.

Manual CAN Commands functionality allows user to send configurable commands to CAN BUS.

Up to 10 Manual CAN Command I/Os can be configured:

Configurable settings:

Command type - defines which CAN ID type will be used to send commands:
- Standard (11-bit) - a maximum value of 7FF.
- Extended (29-bit) - a maximum value of 1FFFFFFF.

CAN ID – defines command CAN ID.
- If Command type is Standard (11-bit) - a maximum value of 7FF.
- If Command type is Extended (29-bit) - a maximum value of 1FFFFFFF.

Data - defines command data.

Data length - defines command data length in bytes.

Send type - selects command send type:
- Once - command will be sent one time after it is triggered.
- Periodic - command will be sent periodically after it is triggered.
- Response - command will be sent once as a response to received Manual CAN I/O.

Run on startup - if enabled, command will be triggered automatically on device startup.

Response - if Send type is Response, defines Manual CAN I/O which will trigger command.

Send period - defines command send period (in miliseconds) if Periodic send type is selected:
- Minimal command period - 100 ms.
- Period must be configured with a step of 100 ms.

Send count - defines command sending count if Periodic send type is selected.
- If set to 0 - command will be sent infinitely until it is turned off by the user.

Command Enabler - toggles command.
- If enabled - command will send CAN messages.
- If disabled, the command will not be available to trigger sending, even if configured.

After configuring, Manual CAN commands can be triggered with SMS/GPRS commands: FTC305 SMS/GPRS Commands.