--xcp bootloader

Boot/Core/Src/main.c

@@ -19,8 +19,7 @@
 /* USER CODE END Header */
 /* Includes ------------------------------------------------------------------*/
 #include "main.h"
-#include "i2c.h"
-#include "tim.h"
+#include "crc.h"
 #include "usart.h"
 #include "gpio.h"
 
@@ -73,7 +72,15 @@ int main(void)
   /* MCU Configuration--------------------------------------------------------*/
 
   /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
-  HAL_Init();
+  LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SYSCFG);
+  LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR);
+
+  /* SysTick_IRQn interrupt configuration */
+  NVIC_SetPriority(SysTick_IRQn, 3);
+
+  /** Disable the internal Pull-Up in Dead Battery pins of UCPD peripheral
+  */
+  LL_SYSCFG_DisableDBATT(LL_SYSCFG_UCPD1_STROBE | LL_SYSCFG_UCPD2_STROBE);
 
   /* USER CODE BEGIN Init */
 
@@ -87,11 +94,10 @@ int main(void)
   /* USER CODE END SysInit */
 
   /* Initialize all configured peripherals */
-  MX_GPIO_Init();
-  MX_I2C2_Init();
-  MX_TIM3_Init();
+  //MX_GPIO_Init();
   MX_USART1_UART_Init();
   MX_USART2_UART_Init();
+  MX_CRC_Init();
   /* USER CODE BEGIN 2 */
   /* Initialize the bootloader application. */
   AppInit();
@@ -116,38 +122,39 @@ int main(void)
   */
 void SystemClock_Config(void)
 {
-  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
-  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
-
-  /** Configure the main internal regulator output voltage
-  */
-  HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1);
-
-  /** Initializes the RCC Oscillators according to the specified parameters
-  * in the RCC_OscInitTypeDef structure.
-  */
-  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
-  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
-  RCC_OscInitStruct.HSIDiv = RCC_HSI_DIV1;
-  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
-  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
-  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
+  LL_FLASH_SetLatency(LL_FLASH_LATENCY_2);
+  while(LL_FLASH_GetLatency() != LL_FLASH_LATENCY_2)
   {
-    Error_Handler();
   }
 
-  /** Initializes the CPU, AHB and APB buses clocks
-  */
-  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
-                              |RCC_CLOCKTYPE_PCLK1;
-  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
-  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
-  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
-
-  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
+  /* HSI configuration and activation */
+  LL_RCC_HSI_Enable();
+  while(LL_RCC_HSI_IsReady() != 1)
   {
-    Error_Handler();
   }
+
+  /* Main PLL configuration and activation */
+  LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSI, LL_RCC_PLLM_DIV_1, 8, LL_RCC_PLLR_DIV_2);
+  LL_RCC_PLL_Enable();
+  LL_RCC_PLL_EnableDomain_SYS();
+  while(LL_RCC_PLL_IsReady() != 1)
+  {
+  }
+
+  /* Set AHB prescaler*/
+  LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
+
+  /* Sysclk activation on the main PLL */
+  LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
+  while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
+  {
+  }
+
+  /* Set APB1 prescaler*/
+  LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_1);
+  LL_Init1msTick(64000000);
+  /* Update CMSIS variable (which can be updated also through SystemCoreClockUpdate function) */
+  LL_SetSystemCoreClock(64000000);
 }
 
 /* USER CODE BEGIN 4 */