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diff --git a/tinyusb/hw/bsp/stm32f4/boards/pyboardv11/board.h b/tinyusb/hw/bsp/stm32f4/boards/pyboardv11/board.h
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+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020, 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
+
+// Blue LED is chosen because the other LEDs are connected to ST-LINK lines.
+#define LED_PORT GPIOB
+#define LED_PIN GPIO_PIN_4
+#define LED_STATE_ON 1
+
+#define BUTTON_PORT GPIOB
+#define BUTTON_PIN GPIO_PIN_3
+#define BUTTON_STATE_ACTIVE 1
+
+// Enable PA2 as the debug log UART
+// It is not routed to the ST/Link on the Discovery board.
+//#define UART_DEV USART2
+//#define UART_GPIO_PORT GPIOA
+//#define UART_GPIO_AF GPIO_AF7_USART2
+//#define UART_TX_PIN GPIO_PIN_2
+//#define UART_RX_PIN GPIO_PIN_3
+
+//--------------------------------------------------------------------+
+// RCC Clock
+//--------------------------------------------------------------------+
+static inline void board_clock_init(void)
+{
+ RCC_ClkInitTypeDef RCC_ClkInitStruct;
+ RCC_OscInitTypeDef RCC_OscInitStruct;
+
+ /* Enable Power Control clock */
+ __HAL_RCC_PWR_CLK_ENABLE();
+
+ /* 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);
+
+ /* Enable HSE Oscillator and activate PLL with HSE as source */
+ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+ RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+ RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+ RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+ RCC_OscInitStruct.PLL.PLLM = HSE_VALUE/1000000;
+ RCC_OscInitStruct.PLL.PLLN = 336;
+ RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
+ RCC_OscInitStruct.PLL.PLLQ = 7;
+ HAL_RCC_OscConfig(&RCC_OscInitStruct);
+
+ /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
+ clocks dividers */
+ RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
+ RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+ RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+ RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
+ RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
+ HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
+
+ // Enable clocks for LED, Button, Uart
+ __HAL_RCC_GPIOB_CLK_ENABLE();
+}
+
+static inline void board_vbus_sense_init(void)
+{
+ // Enable VBUS sense (B device) via pin PA9
+ USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_NOVBUSSENS;
+ USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_VBUSBSEN;
+}
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* BOARD_H_ */