Input mapping
It's highly recommended to understand Signal flow functionality before studying input mapping.
Input mapping allows you to connect physical inputs (GPIOs) to OPHION inputs.
All settings are located in the /io directory of the controller. OPHION processes up to two analog inputs (level_INPUT and level2_INPUT) and two digital inputs (IN1_INPUT and IN2_INPUT). These inputs can be mapped to physical inputs or receive values through the Ophion control CAN message.
Parameters
Available input mapping parameters in the /io directory:
| Parameter | Description | Range |
|---|---|---|
| level_INPUT | Maps analog input 1 to a physical input | Input ID List Use 0,255 for CAN_input |
| level2_INPUT | Maps analog input 2 to a physical input | Input ID List Use 0,255 for CAN_input |
| IN1_INPUT | Maps digital input 1 to a physical input | Input ID List Use 0,255 for CAN_input |
| IN2_INPUT | Maps digital input 2 to a physical input | Input ID List Use 0,255 for CAN_input |
| can_input | Enables CAN message control | 0: Disabled 1: Enabled |
| can_offset | Sets CAN control message offset. MSG ID = offset + addr | Default 0x610 Range [0x600 - 0x700] |
Physical inputs
When mapping to physical inputs, only the first parameter value is required.
- For analog inputs: Set the corresponding GPIO input ID
- For digital inputs: Set the corresponding GDIN or DIN input ID
- GDIN (Gpio DIN) represents a digital input on a GPIO pin
- The second input value is the device address, typically 0
To configure level_INPUT to use GPIO0, set parameter io/level_INPUT to 8,0
Input from CAN
To receive input via CAN, set the parameter to 0,255. This configures the input to read from the CAN message.
CAN and physical inputs can be used simultaneously.