Workflow

1.
Initialize the ACC module so that:
- ADC channel 5 is connected to its positive input
- DAC channel 0 is connected to its negative input
- Generate an interrupt on either edge of the output
- Disable the ACC module output inversion
```
acc_init(ACC, ACC_MR_SELPLUS_AD5, ACC_MR_SELMINUS_DAC0,
        ACC_MR_EDGETYP_ANY, ACC_MR_INV_DIS);
```

2.

Enable the ACC module interrupt:

NVIC_EnableIRQ(ACC_IRQn);

acc_enable_interrupt(ACC);