Merge pull request #34 from Copper280z/main

Add clock config with correct wait states and PLL settings.

firmware/src/clock.c

@@ -0,0 +1,58 @@
+#include "pins_arduino.h"
+
+/**
+ * @brief System Clock Configuration
+ * @retval None
+ */
+void SystemClock_Config(void)
+{
+  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
+  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
+#ifdef USBCON
+  RCC_PeriphCLKInitTypeDef PeriphClkInit = {};
+#endif
+
+  /** Configure the main internal regulator output voltage
+   */
+  HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1_BOOST);
+
+  /** Initializes the RCC Oscillators according to the specified parameters
+   * in the RCC_OscInitTypeDef structure.
+   */
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48 | RCC_OSCILLATORTYPE_HSE;
+  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+  RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+  RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV2;
+  RCC_OscInitStruct.PLL.PLLN = 85;
+  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
+  RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
+  RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
+  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
+  {
+    Error_Handler();
+  }
+
+  /** Initializes the CPU, AHB and APB buses clocks
+   */
+  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
+  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
+
+  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
+  {
+    Error_Handler();
+  }
+
+  #ifdef USBCON
+  /* Initializes the peripherals clocks */
+  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USB;
+  PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_HSI48;
+  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) {
+    Error_Handler();
+  }
+#endif
+}