398 lines
10 KiB
C
398 lines
10 KiB
C
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#include <stdint.h>
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#include "stm32l4xx.h"
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#include "stm32l4xx_ll_gpio.h"
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#include "stm32l4xx_ll_rcc.h"
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#include "stm32l4xx_ll_crs.h"
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#include "stm32l4xx_ll_system.h"
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#include "stm32l4xx_ll_pwr.h"
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#include "stm32l4xx_ll_utils.h"
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#include "stm32l4xx_ll_cortex.h"
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#include "stm32l4xx_ll_gpio.h"
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#include "stm32l4xx_ll_usart.h"
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#include "stm32l4xx_ll_bus.h"
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#include "stm32l4xx_ll_tim.h"
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#include "stm32l4xx_ll_rng.h"
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#include "stm32l4xx_ll_usb.h"
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#include "stm32l4xx_hal_pcd.h"
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#include "stm32l4xx_hal.h"
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#include "usbd_core.h"
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#include "usbd_desc.h"
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#include "usbd_hid.h"
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#include "device.h"
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/* USER CODE BEGIN Includes */
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/* USER CODE END Includes */
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/* Private variables ---------------------------------------------------------*/
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USBD_HandleTypeDef Solo_USBD_Device;
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/* Private function prototypes -----------------------------------------------*/
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static void LL_Init(void);
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void SystemClock_Config(void);
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static void MX_GPIO_Init(void);
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static void MX_USART1_UART_Init(void);
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static void MX_TIM2_Init(void);
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static void MX_TIM6_Init(void);
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static void MX_RNG_Init(void);
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static void usb_init();
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#define Error_Handler() _Error_Handler(__FILE__,__LINE__)
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void _Error_Handler(char *file, int line);
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void hw_init(void)
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{
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/* USER CODE BEGIN 1 */
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/* USER CODE END 1 */
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/* MCU Configuration----------------------------------------------------------*/
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/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
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/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
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LL_Init();
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// enable power clock
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SET_BIT(RCC->APB1ENR1, RCC_APB1ENR1_PWREN);
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// enable USB power
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SET_BIT(PWR->CR2, PWR_CR2_USV);
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// Enable USB Clock
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SET_BIT(RCC->APB1ENR1, RCC_APB1ENR1_USBFSEN);
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/* USER CODE BEGIN Init */
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/* USER CODE END Init */
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/* Configure the system clock */
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SystemClock_Config();
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/* USER CODE BEGIN SysInit */
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/* USER CODE END SysInit */
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/* Initialize all configured peripherals */
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MX_GPIO_Init();
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MX_USART1_UART_Init();
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MX_TIM2_Init();
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MX_TIM6_Init();
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MX_RNG_Init();
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TIM6->SR = 0;
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__enable_irq();
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NVIC_EnableIRQ(TIM6_IRQn);
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usb_init();
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}
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static void LL_Init(void)
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{
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LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SYSCFG);
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LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR);
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NVIC_SetPriorityGrouping(4);
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/* System interrupt init*/
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/* MemoryManagement_IRQn interrupt configuration */
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NVIC_SetPriority(MemoryManagement_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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/* BusFault_IRQn interrupt configuration */
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NVIC_SetPriority(BusFault_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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/* UsageFault_IRQn interrupt configuration */
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NVIC_SetPriority(UsageFault_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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/* SVCall_IRQn interrupt configuration */
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NVIC_SetPriority(SVCall_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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/* DebugMonitor_IRQn interrupt configuration */
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NVIC_SetPriority(DebugMonitor_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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/* PendSV_IRQn interrupt configuration */
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NVIC_SetPriority(PendSV_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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/* SysTick_IRQn interrupt configuration */
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NVIC_SetPriority(SysTick_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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}
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/**
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* @brief System Clock Configuration
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* @retval None
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*/
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void SystemClock_Config(void)
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{
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LL_FLASH_SetLatency(LL_FLASH_LATENCY_2);
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if(LL_FLASH_GetLatency() != LL_FLASH_LATENCY_2)
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{
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Error_Handler();
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}
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LL_PWR_SetRegulVoltageScaling(LL_PWR_REGU_VOLTAGE_SCALE1);
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LL_RCC_HSI48_Enable();
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/* Wait till HSI48 is ready */
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while(LL_RCC_HSI48_IsReady() != 1)
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{
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}
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LL_RCC_MSI_Enable();
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/* Wait till MSI is ready */
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while(LL_RCC_MSI_IsReady() != 1)
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{
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}
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LL_RCC_MSI_EnableRangeSelection();
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LL_RCC_MSI_SetRange(LL_RCC_MSIRANGE_11);
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LL_RCC_MSI_SetCalibTrimming(0);
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LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_MSI);
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/* Wait till System clock is ready */
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while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_MSI)
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{
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}
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LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
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LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_1);
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LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_16);
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LL_Init1msTick(48000000);
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LL_SYSTICK_SetClkSource(LL_SYSTICK_CLKSOURCE_HCLK);
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LL_SetSystemCoreClock(48000000);
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LL_RCC_SetUSARTClockSource(LL_RCC_USART1_CLKSOURCE_PCLK2);
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LL_RCC_SetUSBClockSource(LL_RCC_USB_CLKSOURCE_HSI48);
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LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_CRS);
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LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_CRS);
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LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_CRS);
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LL_CRS_SetSyncDivider(LL_CRS_SYNC_DIV_1);
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LL_CRS_SetSyncPolarity(LL_CRS_SYNC_POLARITY_RISING);
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LL_CRS_SetSyncSignalSource(LL_CRS_SYNC_SOURCE_USB);
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LL_CRS_SetReloadCounter(__LL_CRS_CALC_CALCULATE_RELOADVALUE(48000000,1000));
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LL_CRS_SetFreqErrorLimit(34);
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LL_CRS_SetHSI48SmoothTrimming(32);
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/* SysTick_IRQn interrupt configuration */
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NVIC_SetPriority(SysTick_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
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}
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static void usb_init()
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{
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USBD_Init(&Solo_USBD_Device, &Solo_Desc, 0);
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USBD_RegisterClass(&Solo_USBD_Device, &USBD_HID);
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USBD_Start(&Solo_USBD_Device);
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}
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/* TIM2 init function */
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static void MX_TIM2_Init(void)
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{
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LL_TIM_InitTypeDef TIM_InitStruct;
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LL_TIM_OC_InitTypeDef TIM_OC_InitStruct;
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LL_GPIO_InitTypeDef GPIO_InitStruct;
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/* Peripheral clock enable */
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LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM2);
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TIM2->SR = 0 ;
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TIM_InitStruct.Prescaler = 0;
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TIM_InitStruct.CounterMode = LL_TIM_COUNTERMODE_UP;
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TIM_InitStruct.Autoreload = 1000;
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TIM_InitStruct.ClockDivision = LL_TIM_CLOCKDIVISION_DIV1;
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LL_TIM_Init(TIM2, &TIM_InitStruct);
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LL_TIM_EnableARRPreload(TIM2);
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LL_TIM_SetClockSource(TIM2, LL_TIM_CLOCKSOURCE_INTERNAL);
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TIM_OC_InitStruct.OCMode = LL_TIM_OCMODE_PWM1;
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TIM_OC_InitStruct.OCState = LL_TIM_OCSTATE_ENABLE;
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TIM_OC_InitStruct.OCNState = LL_TIM_OCSTATE_ENABLE;
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TIM_OC_InitStruct.CompareValue = 1000;
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TIM_OC_InitStruct.OCPolarity = LL_TIM_OCPOLARITY_HIGH;
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LL_TIM_OC_Init(TIM2, LL_TIM_CHANNEL_CH2, &TIM_OC_InitStruct);
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LL_TIM_OC_DisableFast(TIM2, LL_TIM_CHANNEL_CH2);
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TIM_OC_InitStruct.OCState = LL_TIM_OCSTATE_ENABLE;
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TIM_OC_InitStruct.OCNState = LL_TIM_OCSTATE_ENABLE;
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LL_TIM_OC_Init(TIM2, LL_TIM_CHANNEL_CH3, &TIM_OC_InitStruct);
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LL_TIM_OC_DisableFast(TIM2, LL_TIM_CHANNEL_CH3);
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TIM_OC_InitStruct.OCState = LL_TIM_OCSTATE_ENABLE;
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TIM_OC_InitStruct.OCNState = LL_TIM_OCSTATE_ENABLE;
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LL_TIM_OC_Init(TIM2, LL_TIM_CHANNEL_CH4, &TIM_OC_InitStruct);
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LL_TIM_OC_DisableFast(TIM2, LL_TIM_CHANNEL_CH4);
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LL_TIM_SetOCRefClearInputSource(TIM2, LL_TIM_OCREF_CLR_INT_NC);
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LL_TIM_DisableExternalClock(TIM2);
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LL_TIM_ConfigETR(TIM2, LL_TIM_ETR_POLARITY_NONINVERTED, LL_TIM_ETR_PRESCALER_DIV1, LL_TIM_ETR_FILTER_FDIV1);
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LL_TIM_SetTriggerOutput(TIM2, LL_TIM_TRGO_RESET);
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LL_TIM_DisableMasterSlaveMode(TIM2);
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/**TIM2 GPIO Configuration
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PA1 ------> TIM2_CH2
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PA2 ------> TIM2_CH3
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PA3 ------> TIM2_CH4
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*/
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GPIO_InitStruct.Pin = LL_GPIO_PIN_1|LL_GPIO_PIN_2|LL_GPIO_PIN_3;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
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GPIO_InitStruct.Alternate = LL_GPIO_AF_1;
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LL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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LL_TIM_EnableCounter(TIM2);
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}
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/* USART1 init function */
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static void MX_USART1_UART_Init(void)
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{
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LL_USART_InitTypeDef USART_InitStruct;
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LL_GPIO_InitTypeDef GPIO_InitStruct;
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/* Peripheral clock enable */
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LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_USART1);
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/**USART1 GPIO Configuration
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PB6 ------> USART1_TX
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PB7 ------> USART1_RX
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*/
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GPIO_InitStruct.Pin = LL_GPIO_PIN_6|LL_GPIO_PIN_7;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
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GPIO_InitStruct.Alternate = LL_GPIO_AF_7;
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LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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USART_InitStruct.BaudRate = 115200;
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USART_InitStruct.DataWidth = LL_USART_DATAWIDTH_8B;
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USART_InitStruct.StopBits = LL_USART_STOPBITS_1;
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USART_InitStruct.Parity = LL_USART_PARITY_NONE;
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USART_InitStruct.TransferDirection = LL_USART_DIRECTION_TX_RX;
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USART_InitStruct.HardwareFlowControl = LL_USART_HWCONTROL_NONE;
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USART_InitStruct.OverSampling = LL_USART_OVERSAMPLING_16;
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LL_USART_Init(USART1, &USART_InitStruct);
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LL_USART_ConfigAsyncMode(USART1);
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LL_USART_Enable(USART1);
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}
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/** Pinout Configuration
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*/
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static void MX_GPIO_Init(void)
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{
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/* GPIO Ports Clock Enable */
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LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOA);
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LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOB);
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}
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/* TIM6 init function */
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static void MX_TIM6_Init(void)
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{
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LL_TIM_InitTypeDef TIM_InitStruct;
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/* Peripheral clock enable */
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LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM6);
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// 48 MHz sys clock --> 6 MHz timer clock
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// 48 MHz / 48000 == 1000 Hz
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TIM_InitStruct.Prescaler = 48000;
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TIM_InitStruct.CounterMode = LL_TIM_COUNTERMODE_UP;
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TIM_InitStruct.Autoreload = 90;
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LL_TIM_Init(TIM6, &TIM_InitStruct);
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LL_TIM_DisableARRPreload(TIM6);
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LL_TIM_SetTriggerOutput(TIM6, LL_TIM_TRGO_RESET);
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LL_TIM_DisableMasterSlaveMode(TIM6);
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// enable interrupt
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TIM6->DIER |= 1;
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// Start immediately
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LL_TIM_EnableCounter(TIM6);
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}
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/* TIM7 init function */
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// static void MX_TIM7_Init(void)
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// {
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//
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// LL_TIM_InitTypeDef TIM_InitStruct;
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//
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// /* Peripheral clock enable */
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// LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM7);
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//
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// // 48 MHz sys clock --> 6 MHz timer clock
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// // 6 MHz / 6000 == 1000 Hz
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// TIM_InitStruct.Prescaler = 48000;
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// TIM_InitStruct.CounterMode = LL_TIM_COUNTERMODE_UP;
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// TIM_InitStruct.Autoreload = 0xffff;
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// LL_TIM_Init(TIM6, &TIM_InitStruct);
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//
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// LL_TIM_DisableARRPreload(TIM7);
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//
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// LL_TIM_SetTriggerOutput(TIM7, LL_TIM_TRGO_RESET);
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//
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// LL_TIM_DisableMasterSlaveMode(TIM7);
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//
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// // enable interrupt
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// TIM7->DIER |= 1;
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//
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// // Start immediately
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// LL_TIM_EnableCounter(TIM7);
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// }
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/* RNG init function */
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static void MX_RNG_Init(void)
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{
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/* Peripheral clock enable */
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LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_RNG);
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LL_RNG_Enable(RNG);
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}
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