diff options
Diffstat (limited to 'src/modules/systemlib/pwm_limit/pwm_limit.c')
| -rw-r--r-- | src/modules/systemlib/pwm_limit/pwm_limit.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/modules/systemlib/pwm_limit/pwm_limit.c b/src/modules/systemlib/pwm_limit/pwm_limit.c index 190b315f1..ea5ba9e52 100644 --- a/src/modules/systemlib/pwm_limit/pwm_limit.c +++ b/src/modules/systemlib/pwm_limit/pwm_limit.c @@ -136,12 +136,26 @@ void pwm_limit_calc(const bool armed, const unsigned num_channels, const uint16_ } effective_pwm[i] = output[i] * (max_pwm[i] - ramp_min_pwm)/2 + (max_pwm[i] + ramp_min_pwm)/2; + + /* last line of defense against invalid inputs */ + if (effective_pwm[i] < ramp_min_pwm) { + effective_pwm[i] = ramp_min_pwm; + } else if (effective_pwm[i] > max_pwm[i]) { + effective_pwm[i] = max_pwm[i]; + } } } break; case PWM_LIMIT_STATE_ON: for (unsigned i=0; i<num_channels; i++) { effective_pwm[i] = output[i] * (max_pwm[i] - min_pwm[i])/2 + (max_pwm[i] + min_pwm[i])/2; + + /* last line of defense against invalid inputs */ + if (effective_pwm[i] < min_pwm[i]) { + effective_pwm[i] = min_pwm[i]; + } else if (effective_pwm[i] > max_pwm[i]) { + effective_pwm[i] = max_pwm[i]; + } } break; default: |