Fixed USB clock

hletrd · May 5, 2023 · 71aa341 · 71aa341
1 parent 91ed1fe
commit 71aa341
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/bootloader/F4/Src/main.c b/bootloader/F4/Src/main.c
@@ -244,15 +244,16 @@ void SystemClock_Config(void)
   __HAL_RCC_PWR_CLK_ENABLE();
   __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
 
-  /* Initializes the CPU, AHB and APB busses clocks (100 MHz) */
+  /* Initializes the CPU, AHB and APB busses clocks (96 MHz) */
+  /* USB clock as 48MHz */
   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
   RCC_OscInitStruct.HSEState = RCC_HSE_ON;
   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
   RCC_OscInitStruct.PLL.PLLM = 6;
-  RCC_OscInitStruct.PLL.PLLN = 100;
-  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
-  RCC_OscInitStruct.PLL.PLLQ = 4;
+  RCC_OscInitStruct.PLL.PLLN = 192;
+  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
+  RCC_OscInitStruct.PLL.PLLQ = 8;
   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
     _Error_Handler(__FILE__, __LINE__);
   }