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tinyUSB/hw/bsp/stm32c0/boards/stm32c071nucleo/board.h
2025-05-29 13:36:34 +02:00

100 lines
3.4 KiB
C

/*
* The MIT License (MIT)
*
* Copyright (c) 2020, Ha Thach (tinyusb.org)
* Copyright (c) 2023, HiFiPhile
*
* 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: STM32C071 Nucleo
url: https://www.st.com/en/evaluation-tools/nucleo-g071rb.html
*/
#ifndef BOARD_H_
#define BOARD_H_
// Green LED
#define GREEN_LED_PORT GPIOA
#define GREEN_LED_PIN GPIO_PIN_5
#define GREEN_LED_STATE_ON 1
// Blue LED
#define BLUE_LED_PORT GPIOC
#define BLUE_LED_PIN GPIO_PIN_9
#define BLUE_LED_STATE_ON 0
// Generic LED
#define LED_PORT GREEN_LED_PORT
#define LED_PIN GREEN_LED_PIN
#define LED_STATE_ON GREEN_LED_STATE_ON
// Button
#define BUTTON_PORT GPIOC
#define BUTTON_PIN GPIO_PIN_13
#define BUTTON_STATE_ACTIVE 0
// Enable UART serial communication with the ST-Link
#define UART_DEV USART2
#define UART_CLK_EN __HAL_RCC_USART2_CLK_ENABLE
#define UART_GPIO_PORT GPIOA
#define UART_GPIO_AF GPIO_AF1_USART2
#define UART_TX_PIN GPIO_PIN_2
#define UART_RX_PIN GPIO_PIN_3
static inline void board_clock_init(void) {
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
RCC_CRSInitTypeDef RCC_CRSInitStruct = {0};
/* -1- Enable HSIUSB48 Oscillator */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48;
RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
/* -2- 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_HSIUSB48;
RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV1;
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1);
__HAL_RCC_CRS_CLK_ENABLE();
// Configures CRS
RCC_CRSInitStruct.Prescaler = RCC_CRS_SYNC_DIV1;
RCC_CRSInitStruct.Source = RCC_CRS_SYNC_SOURCE_USB;
RCC_CRSInitStruct.Polarity = RCC_CRS_SYNC_POLARITY_RISING;
RCC_CRSInitStruct.ReloadValue = __HAL_RCC_CRS_RELOADVALUE_CALCULATE(48000000,1000);
RCC_CRSInitStruct.ErrorLimitValue = 34;
RCC_CRSInitStruct.HSI48CalibrationValue = 32;
HAL_RCCEx_CRSConfig(&RCC_CRSInitStruct);
}
#endif /* BOARD_H_ */