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| author | Damien George <damien.p.george@gmail.com> | 2016-12-22 14:02:09 +1100 |
|---|---|---|
| committer | Damien George <damien.p.george@gmail.com> | 2016-12-22 14:55:26 +1100 |
| commit | b14abab9cd9e61307cd1101279f23fc77de09185 (patch) | |
| tree | 0752bb4a8ffc80d077f78fa27675163e4c6feeb7 | |
| parent | ffe807f349294b67de15f63e113972251cd3901c (diff) | |
| download | micropython-b14abab9cd9e61307cd1101279f23fc77de09185.tar.gz micropython-b14abab9cd9e61307cd1101279f23fc77de09185.zip | |
stmhal/led: Properly initialise timer handle to zero before using it.
Without this the timer will have random values for its State and Lock
entries. The object can then be in a locked state leading to some HAL
functions returning immediately with an error code (which is unchecked).
This patch fixes such a bug which did manifest itself as PWM not working
correctly for LEDs.
| -rw-r--r-- | stmhal/led.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/stmhal/led.c b/stmhal/led.c index 310efdcda9..11784af533 100644 --- a/stmhal/led.c +++ b/stmhal/led.c @@ -148,7 +148,7 @@ STATIC void led_pwm_init(int led) { case 3: __TIM3_CLK_ENABLE(); break; default: assert(0); } - TIM_HandleTypeDef tim; + TIM_HandleTypeDef tim = {0}; tim.Instance = pwm_cfg->tim; tim.Init.Period = LED_PWM_TIM_PERIOD - 1; tim.Init.Prescaler = timer_get_source_freq(pwm_cfg->tim_id) / 1000000 - 1; // TIM runs at 1MHz |