Diff: main.h

Revision:

9:41207561508d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.h	Thu Oct 01 12:11:56 2020 +0000
@@ -0,0 +1,36 @@
+
+#include "mbed.h" 
+
+ 
+
+void setup(void)
+{
+    RCC_ClkInitTypeDef RCC_ClkInitStruct;
+    RCC_OscInitTypeDef RCC_OscInitStruct;
+ 
+    RCC_OscInitStruct.OscillatorType =  RCC_OSCILLATORTYPE_LSI|RCC_OSCILLATORTYPE_HSE;
+    RCC_OscInitStruct.HSEState =        RCC_HSE_ON;
+    
+    RCC_OscInitStruct.LSIState =        RCC_LSI_ON;
+    RCC_OscInitStruct.PLL.PLLState =    RCC_PLL_ON;
+    RCC_OscInitStruct.PLL.PLLSource =   RCC_PLLSOURCE_HSE;
+    
+RCC_OscInitStruct.PLL.PLLM            = 25;             // VCO input clock = 1 MHz (25 MHz / 25)
+RCC_OscInitStruct.PLL.PLLN            = 192;           // VCO output clock = 192 MHz (1 MHz * 192)
+RCC_OscInitStruct.PLL.PLLP            = RCC_PLLP_DIV2; // PLLCLK = 96 MHz (192 MHz / 2)
+RCC_OscInitStruct.PLL.PLLQ            = 4;             // USB clock = 48 MHz (192 MHz / 4) --> Good for USB
+  
+  HAL_RCC_OscConfig(&RCC_OscInitStruct);
+ 
+    RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1;
+    RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+    RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
+    HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
+    
+    SystemCoreClockUpdate();
+    SystemCoreClock = 96000000;
+    
+    //HAL_RCC_MCOConfig(RCC_MCO2, RCC_MCO2SOURCE_SYSCLK, RCC_MCODIV_1);        // output SYSCLOCK to pin PC9 to monitor frequency
+}
+
+