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Limit the frequency of LED status updates

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Unrestricted refreshing of the LED status may cause the WS2812
controller to not work properly.
Observed on my waveshare_rp2040_one board where the LED remains
either constantly on or off, even though the workflow should
dim or turn off/on the LED.
This commit is contained in:
Ming Kuang 2025-02-09 15:35:42 +08:00
parent 44ca760e1c
commit 1723613b4e
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GPG key ID: 0D3B4FAE403B8BCD
1 changed files with 6 additions and 1 deletions
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7
src/led/led.c
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@ -39,6 +39,7 @@ void led_blinking_task() {
#ifndef ENABLE_EMULATION
static uint32_t start_ms = 0;
static uint32_t stop_ms = 0;
static uint32_t last_led_update_ms = 0;
static uint8_t led_state = false;
uint8_t state = led_state;
#ifdef PICO_DEFAULT_LED_PIN_INVERTED
@ -62,7 +63,11 @@ void led_blinking_task() {
progress = 1;
}
led_driver_color(led_color, led_brightness, progress);
// limit the frequency of LED status updates
if (board_millis() - last_led_update_ms > 2) {
led_driver_color(led_color, led_brightness, progress);
last_led_update_ms = board_millis();
}
if (board_millis() >= stop_ms){
start_ms = stop_ms;