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pwm dont start when duty is set

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This commit is contained in:
lilian 2017-11-22 22:33:21 +01:00
parent 1cf766f1b5
commit d3854edd20
1 changed files with 16 additions and 9 deletions
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25
extras/pwm/pwm.c
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@ -33,6 +33,7 @@ typedef enum {
typedef struct pwmInfoDefinition typedef struct pwmInfoDefinition
{ {
uint8_t running; uint8_t running;
bool output;
uint16_t freq; uint16_t freq;
uint16_t dutyCycle; uint16_t dutyCycle;
@ -131,21 +132,21 @@ void pwm_set_freq(uint16_t freq)
void pwm_set_duty(uint16_t duty) void pwm_set_duty(uint16_t duty)
{ {
bool output;
pwmInfo.dutyCycle = duty; pwmInfo.dutyCycle = duty;
if (duty > 0 && duty < UINT16_MAX) { if (duty > 0 && duty < UINT16_MAX) {
pwm_restart(); pwm_restart();
return; return;
} }
// 0% and 100% duty cycle are special cases: constant output. // 0% and 100% duty cycle are special cases: constant output.
pwm_stop(); pwmInfo.output = (duty == UINT16_MAX);
pwmInfo.running = 1; if (pwmInfo.running)
output = (duty == UINT16_MAX);
for (uint8_t i = 0; i < pwmInfo.usedPins; ++i)
{ {
gpio_write(pwmInfo.pins[i].pin, output); pwm_stop();
pwmInfo.running = 1;
for (uint8_t i = 0; i < pwmInfo.usedPins; ++i)
{
gpio_write(pwmInfo.pins[i].pin, pwmInfo.output);
}
} }
} }
@ -178,7 +179,13 @@ void pwm_start()
timer_set_interrupts(FRC1, true); timer_set_interrupts(FRC1, true);
timer_set_run(FRC1, true); timer_set_run(FRC1, true);
} }
else
{
for (uint8_t i = 0; i < pwmInfo.usedPins; ++i)
{
gpio_write(pwmInfo.pins[i].pin, pwmInfo.output);
}
}
pwmInfo.running = 1; pwmInfo.running = 1;
} }