hw/bsp/stm32h7/boards/stm32h745disco/board.h

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2021, Ha Thach (tinyusb.org)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * This file is part of the TinyUSB stack.
 */

#ifndef BOARD_H_
#define BOARD_H_

#ifdef __cplusplus
 extern "C" {
#endif

#define LED_PORT              GPIOJ
#define LED_PIN               GPIO_PIN_2
#define LED_STATE_ON          1

// Blue push-button
#define BUTTON_PORT           GPIOC
#define BUTTON_PIN            GPIO_PIN_13
#define BUTTON_STATE_ACTIVE   1

// UART
#define UART_DEV              USART3
#define UART_CLK_EN           __HAL_RCC_USART3_CLK_ENABLE
#define UART_GPIO_PORT        GPIOB
#define UART_GPIO_AF          GPIO_AF7_USART3
#define UART_TX_PIN           GPIO_PIN_10
#define UART_RX_PIN           GPIO_PIN_11

// VBUS Sense detection
#define OTG_FS_VBUS_SENSE     1
#define OTG_HS_VBUS_SENSE     0

//--------------------------------------------------------------------+
// RCC Clock
//--------------------------------------------------------------------+
static inline void board_stm32h7_clock_init(void)
{
  RCC_ClkInitTypeDef RCC_ClkInitStruct;
  RCC_OscInitTypeDef RCC_OscInitStruct;
  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;

  /*!< Supply configuration update enable */
  /* For STM32H750XB, use "HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);" */
  HAL_PWREx_ConfigSupply(PWR_DIRECT_SMPS_SUPPLY);

  /* The voltage scaling allows optimizing the power consumption when the
     device is clocked below the maximum system frequency, to update the
     voltage scaling value regarding system frequency refer to product
     datasheet.  */
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);

  while ((PWR->D3CR & (PWR_D3CR_VOSRDY)) != PWR_D3CR_VOSRDY) {}

  /* Enable HSE Oscillator and activate PLL with HSE as source */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
  RCC_OscInitStruct.HSIState = RCC_HSI_OFF;
  RCC_OscInitStruct.CSIState = RCC_CSI_OFF;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;

  /* PLL1 for System Clock */
  RCC_OscInitStruct.PLL.PLLM = 5;
  RCC_OscInitStruct.PLL.PLLN = 160;
  RCC_OscInitStruct.PLL.PLLFRACN = 0;
  RCC_OscInitStruct.PLL.PLLP = 2;
  RCC_OscInitStruct.PLL.PLLR = 2;
  RCC_OscInitStruct.PLL.PLLQ = 4;

  RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOMEDIUM;
  RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_2;
  HAL_RCC_OscConfig(&RCC_OscInitStruct);

  /* PLL3 for USB Clock */
  PeriphClkInitStruct.PLL3.PLL3M = 25;
  PeriphClkInitStruct.PLL3.PLL3N = 336;
  PeriphClkInitStruct.PLL3.PLL3FRACN = 0;
  PeriphClkInitStruct.PLL3.PLL3P = 2;
  PeriphClkInitStruct.PLL3.PLL3R = 2;
  PeriphClkInitStruct.PLL3.PLL3Q = 7;

  PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_USB;
  PeriphClkInitStruct.UsbClockSelection = RCC_USBCLKSOURCE_PLL3;
  HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);

  /* Select PLL as system clock source and configure  bus clocks dividers */
  RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_D1PCLK1 | RCC_CLOCKTYPE_PCLK1 | \
  RCC_CLOCKTYPE_PCLK2  | RCC_CLOCKTYPE_D3PCLK1);

  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2;
  RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV1;
  HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4);

  /*activate CSI clock mondatory for I/O Compensation Cell*/
  __HAL_RCC_CSI_ENABLE() ;

  /* Enable SYSCFG clock mondatory for I/O Compensation Cell */
  __HAL_RCC_SYSCFG_CLK_ENABLE() ;

  /* Enables the I/O Compensation Cell */
  HAL_EnableCompensationCell();
}

static inline void board_stm32h7_post_init(void)
{
  // For this board does nothing
}

#ifdef __cplusplus
 }
#endif

#endif