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fix inner func

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This commit is contained in:
INSEOB KANG 2022-10-23 18:31:31 +09:00
parent 99ca267775
commit d0dc2d9515
1 changed files with 6 additions and 8 deletions
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14
platforms/jetson/pwm_pin.go
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@ -11,7 +11,7 @@ import (
const (
minimumPeriod = 5334
minimumRate = 0.05
minimumRate = 0.05
)
// PWMPin is the Jetson Nano implementation of the PWMPinner interface.
@ -102,7 +102,7 @@ func (p *PWMPin) SetPeriod(period uint32) (err error) {
return errors.New("Cannot set the period of individual PWM pins on Jetson")
}
// JetsonNano Minimum period
if period < JETSON_MINIMUM_PERIOD {
if period < minimumPeriod {
return errors.New("Cannot set the period more Then minimum.")
}
@ -138,14 +138,11 @@ func (p *PWMPin) SetDutyCycle(duty uint32) (err error) {
rate := gobot.FromScale(float64(p.dc), 0, float64(p.period))
// never go below minimum allowed duty becuse very short duty
if rate < MINIMUM_RATE {
duty = uint32(MINIMUM_RATE * float64(p.period) / 100)
if rate < minimumRate {
duty = uint32(minimumRate * float64(p.period) / 100)
p.dc = duty
}
return p.jetsonBlaster(fmt.Sprintf("%v", duty))
}
func (p *PWMPin) jetsonBlaster(data string) (err error) {
fi, err := sysfs.OpenFile(fmt.Sprintf("/sys/class/pwm/pwmchip0/pwm%s/duty_cycle", p.fn), os.O_WRONLY|os.O_APPEND, 0644)
defer fi.Close()
@ -153,7 +150,8 @@ func (p *PWMPin) jetsonBlaster(data string) (err error) {
return err
}
_, err = fi.WriteString(data)
_, err = fi.WriteString(fmt.Sprintf("%v", duty))
return
}