tinyUSB/hw/bsp/stm32u5/boards/stm32u5a5nucleo/board.h

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2023, 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.
 */

/* metadata:
   name: STM32 U5a5 Nucleo
   url: https://www.st.com/en/evaluation-tools/nucleo-u5a5zj-q.html
*/

#ifndef BOARD_H_
#define BOARD_H_

#ifdef __cplusplus
extern "C"
{
#endif

// LED GREEN
#define LED_PORT GPIOC
#define LED_PIN GPIO_PIN_7
#define LED_STATE_ON 1

// BUTTON
#define BUTTON_PORT GPIOC
#define BUTTON_PIN GPIO_PIN_13
#define BUTTON_STATE_ACTIVE 1

// UART Enable for STLink VCOM
#define UART_DEV USART1
#define UART_CLK_EN __HAL_RCC_USART1_CLK_ENABLE
#define UART_GPIO_PORT GPIOA
#define UART_GPIO_AF GPIO_AF7_USART1
#define UART_TX_PIN GPIO_PIN_9
#define UART_RX_PIN GPIO_PIN_10

//--------------------------------------------------------------------+
// RCC Clock
//--------------------------------------------------------------------+

static void SystemClock_Config(void) {
  RCC_OscInitTypeDef RCC_OscInitStruct = { 0 };
  RCC_ClkInitTypeDef RCC_ClkInitStruct = { 0 };

  __HAL_RCC_PWR_CLK_ENABLE();
  HAL_PWREx_EnableVddA();

  /** Configure the main internal regulator output voltage
  */
  if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1) != HAL_OK) {
    Error_Handler();
  }

  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI | RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMBOOST = RCC_PLLMBOOST_DIV1;
  RCC_OscInitStruct.PLL.PLLM = 1;
  RCC_OscInitStruct.PLL.PLLN = 20;
  RCC_OscInitStruct.PLL.PLLP = 8;
  RCC_OscInitStruct.PLL.PLLQ = 2;
  RCC_OscInitStruct.PLL.PLLR = 2;
  RCC_OscInitStruct.PLL.PLLRGE = RCC_PLLVCIRANGE_1;
  RCC_OscInitStruct.PLL.PLLFRACN = 0;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
    Error_Handler();
  }

  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK
                                | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2
                                | RCC_CLOCKTYPE_PCLK3;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB3CLKDivider = RCC_HCLK_DIV1;

  HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4);

  // USB Clock
  __HAL_RCC_SYSCFG_CLK_ENABLE();

  RCC_PeriphCLKInitTypeDef usb_clk_init = { 0};
  usb_clk_init.PeriphClockSelection = RCC_PERIPHCLK_USBPHY;
  usb_clk_init.UsbPhyClockSelection = RCC_USBPHYCLKSOURCE_HSE;
  if (HAL_RCCEx_PeriphCLKConfig(&usb_clk_init) != HAL_OK) {
    Error_Handler();
  }

  /** Set the OTG PHY reference clock selection
  */
  HAL_SYSCFG_SetOTGPHYReferenceClockSelection(SYSCFG_OTG_HS_PHY_CLK_SELECT_1);

  // USART clock
  RCC_PeriphCLKInitTypeDef uart_clk_init = { 0};
  uart_clk_init.PeriphClockSelection = RCC_PERIPHCLK_USART1;
  uart_clk_init.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK2;
  if (HAL_RCCEx_PeriphCLKConfig(&uart_clk_init) != HAL_OK) {
    Error_Handler();
  }
}

static void SystemPower_Config(void) {
  HAL_PWREx_EnableVddIO2();

  /*
   * Switch to SMPS regulator instead of LDO
   */
  if (HAL_PWREx_ConfigSupply(PWR_SMPS_SUPPLY) != HAL_OK) {
    Error_Handler();
  }
/* USER CODE BEGIN PWR */
/* USER CODE END PWR */
}


#ifdef __cplusplus
}
#endif

#endif /* BOARD_H_ */