Initialize LED_AC repository and set LED status colors per station modes.

Add project sources with a minimal gitignore for IDE/build artifacts only while keeping firmware files tracked. Made-with: Cursor
2026-04-21 12:32:59 +03:00
commit 072210dd2d
129 changed files with 125841 additions and 0 deletions
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+//
+// Created by enik on 15.07.22.
+//
+
+//#include "led_rgb.h"
+#include "math.h"
+#include "main.h"
+
+extern TIM_HandleTypeDef htim2;
+
+static TIM_HandleTypeDef *htim;
+
+static void HSV2RGB(uint8_t hue, uint8_t sat, uint8_t val, uint8_t *_r, uint8_t *_g, uint8_t *_b);
+
+/**
+ * @brief Initialize LED Timer
+ * @param[in] tmr Handler to HAL Timer
+ * @param[in] ch_r Red Channel
+ * @param[in] ch_g Green Channel
+ * @param[in] ch_b Blue Channel
+ */
+void led_init(TIM_HandleTypeDef *tmr, uint32_t ch_r, uint32_t ch_g, uint32_t ch_b) {
+//    htim = tmr;
+    TIM2->PSC = 100 - 1;          // 32 MHz
+    TIM2->ARR = 320 - 1;     // 32.000.000 / 32.000 = 1.000 Hz
+    led_setRGB(0, 0, 0);
+    HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_1);
+    HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_2);
+    HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_3);
+}
+
+/**
+ * @brief Set LED Color in RGB
+ * @param[in] r Red component
+ * @param[in] g Green component
+ * @param[in] b Blue component
+ */
+void led_setRGB(uint8_t r, uint8_t g, uint8_t b) {
+//    uint32_t r_val = 720 - (r * 320 / 256);
+//    uint32_t g_val = 720 - (g * 320 / 256);
+//    uint32_t b_val = 720 - (b * 320 / 256);
+    uint32_t r_val = (r * 320 / 256);
+    uint32_t g_val = (g * 320 / 256);
+    uint32_t b_val = (b * 320 / 256);
+//    TIM2->CCR1 = b_val;
+//    TIM2->CCR2 = r_val;
+//    TIM2->CCR3 = g_val;
+    TIM2->CCR1 = r_val;
+    TIM2->CCR2 = g_val;
+    TIM2->CCR3 = b_val;
+}
+
+/**
+ * @brief Set LED Color in HSV
+ * @param hue
+ * @param sat
+ * @param val
+ */
+void led_setHSV(uint8_t hue, uint8_t sat, uint8_t val) {
+    uint8_t r, g, b;
+    HSV2RGB(hue, sat, val, &r, &g, &b);
+    led_setRGB(r, g, b);
+}
+
+/**
+ * @brief Convert color in HSV to RGB
+ * @param[in] hue HUE (color) [0..255]
+ * @param[in] sat Saturation  [0..255]
+ * @param[in] val Value (brightness) [0..255]
+ * @param[out] _r Pointer to RED component value
+ * @param[out] _g Pointer to GREEN component value
+ * @param[out] _b Pointer to BLUE component value
+ */
+static void HSV2RGB(uint8_t hue, uint8_t sat, uint8_t val, uint8_t *_r, uint8_t *_g, uint8_t *_b) {
+    if (sat == 0) { // if white color
+        *_r = *_g = *_b = val;
+        return;
+    }
+    // Float is smoother but check for FPU (Floating point unit) in your MCU
+    // Otherwise it will take longer time in the code
+    // FPU is in: F3/L3 and greater
+    // Src: https://github.com/Inseckto/HSV-to-RGB
+    float h = (float) hue / 255;
+    float s = (float) sat / 255;
+    float v = (float) val / 255;
+
+    int i = (int) floorf(h * 6);
+    float f = h * 6 - (float) i;
+    uint8_t p = (uint8_t) (v * (1 - s) * 255.0);
+    uint8_t q = (uint8_t) (v * (1 - f * s) * 255.0);
+    uint8_t t = (uint8_t) (v * (1 - (1 - f) * s) * 255.0);
+
+    switch (i % 6) {
+// Src: https://stackoverflow.com/questions/3018313
+//    uint8_t reg = hue / 43;
+//    uint8_t rem = (hue - (reg * 43)) * 6;
+//    uint8_t p = (val * (255 - sat)) >> 8;
+//    uint8_t q = (val * (255 - ((sat * rem) >> 8))) >> 8;
+//    uint8_t t = (val * (255 - ((sat * (255 - rem)) >> 8))) >> 8;
+//    switch (reg) {
+        case 0:
+            *_r = val, *_g = t, *_b = p;
+            break;
+        case 1:
+            *_r = q, *_g = val, *_b = p;
+            break;
+        case 2:
+            *_r = p, *_g = val, *_b = t;
+            break;
+        case 3:
+            *_r = p, *_g = q, *_b = val;
+            break;
+        case 4:
+            *_r = t, *_g = p, *_b = val;
+            break;
+        default:
+            *_r = val, *_g = p, *_b = q;
+            break;
+    }
+}
+