we use l432, not l442

targets/stm32l432/src/led.c

@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2018 SoloKeys, Inc. <https://solokeys.com/>
+ * 
+ * This file is part of Solo.
+ * 
+ * Solo is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * Solo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with Solo.  If not, see <https://www.gnu.org/licenses/>
+ * 
+ * This code is available under licenses for commercial use.
+ * Please contact SoloKeys for more information.
+ */
+#include <stdint.h>
+#include <stdio.h>
+
+#include "stm32l4xx_ll_gpio.h"
+#include "stm32l4xx_ll_tim.h"
+
+#include "led.h"
+#include "device.h"
+#include "log.h"
+
+void led_rgb(uint32_t hex)
+{
+    uint32_t r = hex >> 16;
+    uint32_t g = (hex >> 8)&0xff;
+    uint32_t b = hex & 0xff;
+
+    // CCR2 == blue
+    // CCR3 == red
+    // CCR4 == green
+
+    // map and scale colors
+    TIM2->CCR2 = 1000 - (b * 1000)/(256);
+    TIM2->CCR3 = 1000 - (r * 1000)/(256*6);
+    TIM2->CCR4 = 1000 - (g * 1000)/(256);
+}
+
+void led_test_colors()
+{
+    // Should produce pulsing of various colors
+    int i = 0;
+    int j = 0;
+    int inc = 1;
+    uint32_t time = 0;
+#define update() do {\
+        i += inc;\
+        if (i > 254)\
+        {\
+            inc *= -1;\
+        }\
+        else if (i == 0)\
+        {\
+            inc *= -1;\
+        }\
+        delay(2);\
+        }while(0);
+
+    while(1)
+    {
+
+        printf1(TAG_GREEN, "%d: %lu\r\n", j++, millis());
+
+        printf1(TAG_GREEN,"white pulse\r\n");
+        time = millis();
+        while((millis() - time) < 5000)
+        {
+            update();
+            led_rgb(i | (i << 8) | (i << 16));
+        }
+
+        printf1(TAG_GREEN,"blue pulse\r\n");
+        time = millis();
+        while((millis() - time) < 5000)
+        {
+            update();
+            led_rgb(i);
+        }
+
+        printf1(TAG_GREEN,"green pulse\r\n");
+        time = millis();
+        while((millis() - time) < 5000)
+        {
+            update();
+            led_rgb(i<<8);
+        }
+
+        printf1(TAG_GREEN,"red pulse\r\n");
+        time = millis();
+        while((millis() - time) < 5000)
+        {
+            update();
+            led_rgb(i<<16);
+        }
+
+        printf1(TAG_GREEN,"purple pulse\r\n");
+        time = millis();
+        while((millis() - time) < 5000)
+        {
+            update();
+            led_rgb((i<<16) | i);
+        }
+
+        printf1(TAG_GREEN,"orange pulse\r\n");
+        time = millis();
+        while((millis() - time) < 5000)
+        {
+            update();
+            led_rgb((i<<16) | (i<<8));
+        }
+
+        printf1(TAG_GREEN,"yellow pulse\r\n");
+        time = millis();
+        while((millis() - time) < 5000)
+        {
+            update();
+            led_rgb((i<<8) | (i<<0));
+        }
+    }
+}