hz
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/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2020, Ha Thach (tinyusb.org)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* This file is part of the TinyUSB stack.
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*/
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/* metadata:
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name: STM32 L4P5 Nucleo
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url: https://www.st.com/en/evaluation-tools/nucleo-l4p5zg.html
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*/
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#ifndef BOARD_H_
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#define BOARD_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define LED_PORT GPIOB
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#define LED_PIN GPIO_PIN_14
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#define LED_STATE_ON 1
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#define BUTTON_PORT GPIOC
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#define BUTTON_PIN GPIO_PIN_13
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#define BUTTON_STATE_ACTIVE 1
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#define UART_DEV LPUART1
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#define UART_CLK_EN __HAL_RCC_LPUART1_CLK_ENABLE
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#define UART_GPIO_PORT GPIOG
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#define UART_GPIO_AF GPIO_AF8_LPUART1
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#define UART_TX_PIN GPIO_PIN_7
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#define UART_RX_PIN GPIO_PIN_8
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//--------------------------------------------------------------------+
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// RCC Clock
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//--------------------------------------------------------------------+
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/**
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* @brief System Clock Configuration
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* The system Clock is configured as follow :
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* System Clock source = PLL (MSI)
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* SYSCLK(Hz) = 120000000
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* HCLK(Hz) = 120000000
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* AHB Prescaler = 1
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* APB1 Prescaler = 1
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* APB2 Prescaler = 1
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* MSI Frequency(Hz) = 48000000
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* PLL_M = 12
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* PLL_N = 60
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* PLL_P = 2
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* PLL_Q = 2
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* VDD(V) = 3.3
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* Main regulator output voltage = Scale1 mode
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* Flash Latency(WS) = 5
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* The USB clock configuration from PLLSAI:
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* PLLSAIP = 8 FIXME
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* PLLSAIN = 384 FIXME
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* PLLSAIQ = 7 FIXME
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* @param None
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* @retval None
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*/
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static inline void board_clock_init(void)
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{
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RCC_ClkInitTypeDef RCC_ClkInitStruct;
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RCC_OscInitTypeDef RCC_OscInitStruct;
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RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
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/* Activate PLL with MSI , stabilizied via PLL by LSE */
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSE | RCC_OSCILLATORTYPE_MSI;
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RCC_OscInitStruct.MSIState = RCC_MSI_ON;
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RCC_OscInitStruct.LSEState = RCC_LSE_ON;
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RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_11;
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RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;
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RCC_OscInitStruct.PLL.PLLM = 12;
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RCC_OscInitStruct.PLL.PLLN = 60;
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RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
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RCC_OscInitStruct.PLL.PLLQ = 2;
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HAL_RCC_OscConfig(&RCC_OscInitStruct);
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/* Enable MSI Auto-calibration through LSE */
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HAL_RCCEx_EnableMSIPLLMode();
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/* Select MSI output as USB clock source */
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PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_USB;
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PeriphClkInitStruct.UsbClockSelection = RCC_USBCLKSOURCE_MSI;
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HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
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/* Select MSI output as USB clock source */
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PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LPUART1;
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PeriphClkInitStruct.Lpuart1ClockSelection = RCC_LPUART1CLKSOURCE_PCLK1;
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HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
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/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
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clocks dividers */
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RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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// Avoid overshoot and start with HCLK 60 MHz
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV2;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
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HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3);
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/* AHB prescaler divider at 1 as second step */
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RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
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}
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static inline void board_vbus_sense_init(void)
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{
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// Enable VBUS sense (B device) via pin PA9
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USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_VBDEN;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* BOARD_H_ */
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