230 lines
8.4 KiB
C
230 lines
8.4 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2021
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* Ha Thach (tinyusb.org)
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* Benjamin Evans
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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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#ifndef BOARD_H_
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#define 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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#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_6
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#define LED_STATE_ON 1
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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 to change jumper setting J7 and J8 from RS-232 to STLink
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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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// USB HS External PHY Pin: CLK, STP, DIR, NXT, D0-D7
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#define ULPI_PINS \
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{GPIOA, GPIO_PIN_3 }, {GPIOA, GPIO_PIN_5 }, {GPIOB, GPIO_PIN_0 }, {GPIOB, GPIO_PIN_1 }, \
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{GPIOB, GPIO_PIN_5 }, {GPIOB, GPIO_PIN_10}, {GPIOB, GPIO_PIN_11}, {GPIOB, GPIO_PIN_12}, \
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{GPIOB, GPIO_PIN_13}, {GPIOC, GPIO_PIN_0 }, {GPIOC, GPIO_PIN_2 }, {GPIOC, GPIO_PIN_3 }
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// ULPI PHY reset pin used by walkaround
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#define ULPI_RST_PORT GPIOD
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#define ULPI_RST_PIN GPIO_PIN_14
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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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}
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static inline void timer_board_delay(TIM_HandleTypeDef* tim_hdl, uint32_t ms)
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{
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uint32_t startMs = __HAL_TIM_GET_COUNTER(tim_hdl);
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while ((__HAL_TIM_GET_COUNTER(tim_hdl) - 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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static inline void board_stm32h7_post_init(void)
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{
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// walkaround for resetting the ULPI PHY using Timer since systick is not
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// available when RTOS is used.
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// Init timer
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TIM_HandleTypeDef tim2Handle;
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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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// Reset PHY, change the delays as you see fit
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timer_board_delay(&tim2Handle, 5U);
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HAL_GPIO_WritePin(ULPI_RST_PORT, ULPI_RST_PIN, 1U);
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timer_board_delay(&tim2Handle, 20U);
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HAL_GPIO_WritePin(ULPI_RST_PORT, ULPI_RST_PIN, 0U);
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timer_board_delay(&tim2Handle, 20U);
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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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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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