---
active: true
derived: false
header: 'Display Manager'
level: 1.7
normative: true
reviewed: null
links:
  - SWE-020
  - SWE-021
asil: QM
---

# SWA-007: Display Manager

## Responsibility

Drives the LED on the EPB switch and the CAN status frame to the
instrument cluster. Receives status from the apply controller.

## Provided interfaces

```c
Status display_init(void);
void   display_set_status(EpbStatus s);
void   display_step_20ms(void);  // 50 Hz CAN frame
```