495 lines
16 KiB
C
495 lines
16 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019
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* Benjamin Evans
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* William D. Jones (thor0505@comcast.net),
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* Ha Thach (tinyusb.org)
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* Uwe Bonnes (bon@elektron.ikp.physik.tu-darmstadt.de
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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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#include "stm32h7xx_hal.h"
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#include "stm32h7xx_hal_tim.h"
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#include "bsp/board.h"
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/* ** BOARD SETUP **
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*
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* NOTE: This board has bad signal integrity so you may experience some problems.
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* This setup assumes you have an openh743i-c Core and breakout board. For the HS
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* examples it also assumes you have a waveshare USB3300 breakout board plugged
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* into the ULPI PMOD header on the openh743i-c.
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*
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* UART Debugging:
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* Due to pin conflicts in the HS configuration, this BSP uses USART3 (PD8, PD9).
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* As such, you won't be able to use the UART to USB converter on board and will
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* require an external UART to USB converter. You could use the waveshare FT232
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* USB UART Board (micro) but any 3.3V UART to USB converter will be fine.
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*
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* Fullspeed:
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* If VBUS sense is enabled, ensure the PA9-VBUS jumper is connected on the core
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* board. Connect the PB6 jumper for the LED and the Wakeup - PA0 jumper for the
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* button. Connect the USB cable to the USB connector on the core board.
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*
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* High Speed:
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* Remove all jumpers from the openh743i-c (especially the USART1 jumpers as the
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* pins conflict). Connect the PB6 jumper for the LED and the Wakeup - PA0
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* jumper for the button.
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*
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* The reset pin on the ULPI PMOD port is not connected to the MCU. You'll need
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* to solder a wire from the RST pin on the USB3300 to a pin of your choosing on
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* the openh743i-c board (this example assumes you've used PD14 as specified with
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* the ULPI_RST_PORT and ULPI_RST_PIN defines below).
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*
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* Preferably power the board using the external 5VDC jack. Connect the USB cable
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* to the USB connector on the ULPI board. Adjust delays in this file as required.
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*
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* If you're having trouble, ask a question on the tinyUSB Github Discussion boards.
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*
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* Have fun!
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*
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*/
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//--------------------------------------------------------------------+
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// BOARD DEFINES
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//--------------------------------------------------------------------+
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//LED Pin
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#define LED_PORT GPIOB
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#define LED_PIN GPIO_PIN_6
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#define LED_STATE_ON 1
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//ULPI PHY reset pin
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#define ULPI_RST_PORT GPIOD
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#define ULPI_RST_PIN GPIO_PIN_14
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// Tamper push-button
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#define BUTTON_PORT GPIOA
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#define BUTTON_PIN GPIO_PIN_0
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#define BUTTON_STATE_ACTIVE 1
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// Need external UART to USB converter as USART1 pins conflict with HS ULPI pins
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#define UART_DEV USART3
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#define UART_CLK_EN __HAL_RCC_USART3_CLK_ENABLE
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#define UART_GPIO_PORT GPIOD
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#define UART_GPIO_AF GPIO_AF7_USART3
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#define UART_TX_PIN GPIO_PIN_8
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#define UART_RX_PIN GPIO_PIN_9
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// VBUS Sense detection
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#define OTG_FS_VBUS_SENSE 1
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#define OTG_HS_VBUS_SENSE 0
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//--------------------------------------------------------------------+
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// MACRO TYPEDEF CONSTANT ENUM
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//--------------------------------------------------------------------+
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UART_HandleTypeDef uartHandle;
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TIM_HandleTypeDef tim2Handle;
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//--------------------------------------------------------------------+
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// Forward USB interrupt events to TinyUSB IRQ Handler
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//--------------------------------------------------------------------+
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// Despite being call USB2_OTG
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// OTG_FS is marked as RHPort0 by TinyUSB to be consistent across stm32 port
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void OTG_FS_IRQHandler(void)
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{
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tud_int_handler(0);
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}
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// Despite being call USB2_OTG
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// OTG_HS is marked as RHPort1 by TinyUSB to be consistent across stm32 port
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void OTG_HS_IRQHandler(void)
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{
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tud_int_handler(1);
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}
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//--------------------------------------------------------------------+
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// RCC Clock
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//--------------------------------------------------------------------+
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static inline void board_stm32h7_clock_init(void)
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{
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RCC_OscInitTypeDef RCC_OscInitStruct = {0};
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RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
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RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
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__HAL_RCC_SYSCFG_CLK_ENABLE();
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// Supply configuration update enable
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HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);
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// Configure the main internal regulator output voltage
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE0);
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while (!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY))
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{
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}
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// Macro to configure the PLL clock source
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__HAL_RCC_PLL_PLLSOURCE_CONFIG(RCC_PLLSOURCE_HSE);
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// Initializes the RCC Oscillators according to the specified parameters in the RCC_OscInitTypeDef structure.
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_ON;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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RCC_OscInitStruct.PLL.PLLM = 2;
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RCC_OscInitStruct.PLL.PLLN = 240;
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RCC_OscInitStruct.PLL.PLLP = 2;
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RCC_OscInitStruct.PLL.PLLQ = 2;
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RCC_OscInitStruct.PLL.PLLR = 2;
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RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_2;
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RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE;
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RCC_OscInitStruct.PLL.PLLFRACN = 0;
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HAL_RCC_OscConfig(&RCC_OscInitStruct);
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PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_USB | RCC_PERIPHCLK_USART3;
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PeriphClkInitStruct.PLL3.PLL3M = 8;
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PeriphClkInitStruct.PLL3.PLL3N = 336;
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PeriphClkInitStruct.PLL3.PLL3P = 2;
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PeriphClkInitStruct.PLL3.PLL3Q = 7;
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PeriphClkInitStruct.PLL3.PLL3R = 2;
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PeriphClkInitStruct.PLL3.PLL3RGE = RCC_PLL3VCIRANGE_0;
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PeriphClkInitStruct.PLL3.PLL3VCOSEL = RCC_PLL3VCOWIDE;
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PeriphClkInitStruct.PLL3.PLL3FRACN = 0;
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PeriphClkInitStruct.Usart234578ClockSelection = RCC_USART234578CLKSOURCE_PLL3;
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PeriphClkInitStruct.UsbClockSelection = RCC_USBCLKSOURCE_PLL3;
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HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
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// Initializes the CPU, AHB and APB buses clocks
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RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2 | RCC_CLOCKTYPE_D3PCLK1 | RCC_CLOCKTYPE_D1PCLK1;
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;
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RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV2;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV2;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2;
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RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV2;
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HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
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__HAL_RCC_CSI_ENABLE();
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// Enable SYSCFG clock mondatory for I/O Compensation Cell
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__HAL_RCC_SYSCFG_CLK_ENABLE();
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// Enables the I/O Compensation Cell
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HAL_EnableCompensationCell();
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// Enable voltage detector
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HAL_PWREx_EnableUSBVoltageDetector();
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return;
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}
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//--------------------------------------------------------------------+
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// Timer implementation for board delay
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// This should be OS safe and doesn't require the scheduler to be running
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//--------------------------------------------------------------------+
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static void init_timer(void)
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{
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TIM_ClockConfigTypeDef sClockSourceConfig = {0};
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__HAL_RCC_TIM2_CLK_ENABLE();
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//Assuming timer clock is running at 260Mhz this should configure the timer counter to 1000Hz
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tim2Handle.Instance = TIM2;
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tim2Handle.Init.Prescaler = 60000U - 1U;
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tim2Handle.Init.CounterMode = TIM_COUNTERMODE_UP;
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tim2Handle.Init.Period = 0xFFFFFFFFU;
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tim2Handle.Init.ClockDivision = TIM_CLOCKDIVISION_DIV4;
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tim2Handle.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
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HAL_TIM_Base_Init(&tim2Handle);
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sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
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HAL_TIM_ConfigClockSource(&tim2Handle, &sClockSourceConfig);
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//Start the timer
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HAL_TIM_Base_Start(&tim2Handle);
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return;
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}
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// Custom board delay implementation using timer ticks
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static inline void timer_board_delay(uint32_t ms)
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{
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uint32_t startMs = __HAL_TIM_GET_COUNTER(&tim2Handle);
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while ((__HAL_TIM_GET_COUNTER(&tim2Handle) - startMs) < ms)
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{
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asm("nop"); //do nothing
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}
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}
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//Board initialisation
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void board_init(void)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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// Init clocks
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board_stm32h7_clock_init();
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// Init timer for delays
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init_timer();
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//Disable systick for now
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//If using an RTOS and the systick interrupt fires without the scheduler running you might have an issue
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//Because this init code now introduces delays, the systick should be disabled until after board init
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SysTick->CTRL &= ~1U;
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// Enable GPIO clocks
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__HAL_RCC_GPIOA_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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__HAL_RCC_GPIOC_CLK_ENABLE();
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__HAL_RCC_GPIOD_CLK_ENABLE();
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__HAL_RCC_GPIOH_CLK_ENABLE();
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__HAL_RCC_GPIOI_CLK_ENABLE();
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// Enable UART Clock
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UART_CLK_EN();
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#if CFG_TUSB_OS == OPT_OS_FREERTOS
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// If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
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NVIC_SetPriority(OTG_FS_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY);
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NVIC_SetPriority(OTG_HS_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY);
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#endif
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// LED
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GPIO_InitStruct.Pin = LED_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(LED_PORT, &GPIO_InitStruct);
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// PHY RST Pin
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GPIO_InitStruct.Pin = ULPI_RST_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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HAL_GPIO_Init(ULPI_RST_PORT, &GPIO_InitStruct);
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HAL_GPIO_WritePin(ULPI_RST_PORT, ULPI_RST_PIN, 0U);
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// Button
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GPIO_InitStruct.Pin = BUTTON_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(BUTTON_PORT, &GPIO_InitStruct);
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// Uart
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GPIO_InitStruct.Pin = UART_TX_PIN | UART_RX_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.Alternate = UART_GPIO_AF;
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HAL_GPIO_Init(UART_GPIO_PORT, &GPIO_InitStruct);
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uartHandle.Instance = UART_DEV;
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uartHandle.Init.BaudRate = CFG_BOARD_UART_BAUDRATE;
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uartHandle.Init.WordLength = UART_WORDLENGTH_8B;
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uartHandle.Init.StopBits = UART_STOPBITS_1;
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uartHandle.Init.Parity = UART_PARITY_NONE;
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uartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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uartHandle.Init.Mode = UART_MODE_TX_RX;
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uartHandle.Init.OverSampling = UART_OVERSAMPLING_16;
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HAL_UART_Init(&uartHandle);
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#if BOARD_DEVICE_RHPORT_NUM == 0
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//Full Speed
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// Configure DM DP Pins
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GPIO_InitStruct.Pin = GPIO_PIN_11 | GPIO_PIN_12;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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// This for ID line debug
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GPIO_InitStruct.Pin = GPIO_PIN_10;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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__HAL_RCC_USB2_OTG_FS_CLK_ENABLE();
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#if OTG_FS_VBUS_SENSE
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// Configure VBUS Pin
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GPIO_InitStruct.Pin = GPIO_PIN_9;
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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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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#else
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// Disable VBUS sense (B device) via pin PA9
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USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_VBDEN;
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// B-peripheral session valid override enable
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USB_OTG_FS->GOTGCTL |= USB_OTG_GOTGCTL_BVALOEN;
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USB_OTG_FS->GOTGCTL |= USB_OTG_GOTGCTL_BVALOVAL;
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#endif // vbus sense
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#elif BOARD_DEVICE_RHPORT_NUM == 1
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//High Speed
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/**USB_OTG_HS GPIO Configuration
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PC0 ------> USB_OTG_HS_ULPI_STP
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PC2_C ------> USB_OTG_HS_ULPI_DIR
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PC3_C ------> USB_OTG_HS_ULPI_NXT
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PA3 ------> USB_OTG_HS_ULPI_D0
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PA5 ------> USB_OTG_HS_ULPI_CK
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PB1 ------> USB_OTG_HS_ULPI_D2
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PB10 ------> USB_OTG_HS_ULPI_D3
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PB11 ------> USB_OTG_HS_ULPI_D4
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PB12 ------> USB_OTG_HS_ULPI_D5
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PB13 ------> USB_OTG_HS_ULPI_D6
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PB5 ------> USB_OTG_HS_ULPI_D7
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*/
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GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_2 | GPIO_PIN_3;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
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HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = GPIO_PIN_3 | GPIO_PIN_5;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12 | GPIO_PIN_13 | GPIO_PIN_5;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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// Peripheral clock enable
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__HAL_RCC_USB_OTG_HS_CLK_ENABLE();
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__HAL_RCC_USB_OTG_HS_ULPI_CLK_ENABLE();
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#if OTG_HS_VBUS_SENSE
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#error OTG HS VBUS Sense enabled is not implemented
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#else
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// No VBUS sense
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USB_OTG_HS->GCCFG &= ~USB_OTG_GCCFG_VBDEN;
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// B-peripheral session valid override enable
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USB_OTG_HS->GOTGCTL |= USB_OTG_GOTGCTL_BVALOEN;
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USB_OTG_HS->GOTGCTL |= USB_OTG_GOTGCTL_BVALOVAL;
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#endif
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// Force device mode
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USB_OTG_HS->GUSBCFG &= ~USB_OTG_GUSBCFG_FHMOD;
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USB_OTG_HS->GUSBCFG |= USB_OTG_GUSBCFG_FDMOD;
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//Reset the PHY - Change the delays as you see fit
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timer_board_delay(5U); //Delay 5ms
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HAL_GPIO_WritePin(ULPI_RST_PORT, ULPI_RST_PIN, 1U);
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timer_board_delay(20U); //Delay 20ms
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HAL_GPIO_WritePin(ULPI_RST_PORT, ULPI_RST_PIN, 0U);
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timer_board_delay(20U); //Delay 20ms
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#endif // rhport = 1
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//Disable the timer used for delays
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HAL_TIM_Base_Stop(&tim2Handle);
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__HAL_RCC_TIM2_CLK_DISABLE();
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// Configure systick 1ms tick timer
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SysTick_Config(SystemCoreClock / 1000);
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//Enable systick
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SysTick->CTRL |= ~1U;
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return;
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}
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//--------------------------------------------------------------------+
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// Board porting API
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//--------------------------------------------------------------------+
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void board_led_write(bool state)
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{
|
|
HAL_GPIO_WritePin(LED_PORT, LED_PIN, state ? LED_STATE_ON : (1 - LED_STATE_ON));
|
|
}
|
|
|
|
|
|
uint32_t board_button_read(void)
|
|
{
|
|
return (BUTTON_STATE_ACTIVE == HAL_GPIO_ReadPin(BUTTON_PORT, BUTTON_PIN)) ? 1 : 0;
|
|
}
|
|
|
|
|
|
int board_uart_read(uint8_t *buf, int len)
|
|
{
|
|
(void)buf;
|
|
(void)len;
|
|
return 0;
|
|
}
|
|
|
|
|
|
int board_uart_write(void const *buf, int len)
|
|
{
|
|
HAL_UART_Transmit(&uartHandle, (uint8_t *)buf, len, 0xffff);
|
|
return len;
|
|
}
|
|
|
|
|
|
#if CFG_TUSB_OS == OPT_OS_NONE
|
|
volatile uint32_t system_ticks = 0;
|
|
void SysTick_Handler(void)
|
|
{
|
|
system_ticks++;
|
|
}
|
|
|
|
|
|
uint32_t board_millis(void)
|
|
{
|
|
return system_ticks;
|
|
}
|
|
#endif
|
|
|
|
|
|
void HardFault_Handler(void)
|
|
{
|
|
asm("bkpt");
|
|
}
|
|
|
|
|
|
// Required by __libc_init_array in startup code if we are compiling using
|
|
// -nostdlib/-nostartfiles.
|
|
void _init(void)
|
|
{
|
|
} |