394 lines
13 KiB
C
394 lines
13 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 William D. Jones (thor0505@comcast.net),
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* 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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#include "../board.h"
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#include "stm32h7xx_hal.h"
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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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// MACRO TYPEDEF CONSTANT ENUM
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//--------------------------------------------------------------------+
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#define LED_PORT GPIOA
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#define LED_PIN GPIO_PIN_4
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#define LED_STATE_ON 1
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// Tamper push-button
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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 0
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#define UARTx USART1
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#define UART_GPIO_PORT GPIOB
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#define UART_GPIO_AF GPIO_AF4_USART1
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#define UART_TX_PIN GPIO_PIN_14
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#define UART_RX_PIN GPIO_PIN_15
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UART_HandleTypeDef UartHandle;
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// enable all LED, Button, Uart, USB clock
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static void all_rcc_clk_enable(void)
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{
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__HAL_RCC_GPIOA_CLK_ENABLE(); // LED
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__HAL_RCC_GPIOC_CLK_ENABLE(); // Button
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// __HAL_RCC_GPIOB_CLK_ENABLE(); // Uart tx, rx
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// __HAL_RCC_USART1_CLK_ENABLE(); // Uart module
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}
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/* PWR, RCC, GPIO (All): AHB4 (D3 domain)
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USB{1,2} OTG_{H,F}S: AHB1 (D2 domain)
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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 (HSE)
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* SYSCLK(Hz) = 400000000 (CPU Clock)
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* HCLK(Hz) = 200000000 (AXI and AHBs Clock)
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* AHB Prescaler = 2
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* D1 APB3 Prescaler = 2 (APB3 Clock 100MHz)
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* D2 APB1 Prescaler = 2 (APB1 Clock 100MHz)
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* D2 APB2 Prescaler = 2 (APB2 Clock 100MHz)
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* D3 APB4 Prescaler = 2 (APB4 Clock 100MHz)
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* HSE Frequency(Hz) = 25000000
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* PLL_M = 5
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* PLL_N = 160
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* PLL_P = 2
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* PLL_Q = 4
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* PLL_R = 2
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* PLL3_M = 25
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* PLL3_N = 336
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* PLL3_P = 2
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* PLL3_Q = 7
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* PLL3_R = 2
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* VDD(V) = 3.3
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* Flash Latency(WS) = 4
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* @param None
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* @retval None
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*/
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void SystemClock_Config(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;
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/*!< Supply configuration update enable */
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HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);
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/* The voltage scaling allows optimizing the power consumption when the device is
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clocked below the maximum system frequency, to update the voltage scaling value
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regarding system frequency refer to product datasheet. */
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
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while ((PWR->D3CR & (PWR_D3CR_VOSRDY)) != PWR_D3CR_VOSRDY) {}
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/* Enable HSE Oscillator and activate PLL with HSE as source */
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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.HSIState = RCC_HSI_OFF;
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RCC_OscInitStruct.CSIState = RCC_CSI_OFF;
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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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/* PLL1 for System Clock */
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RCC_OscInitStruct.PLL.PLLM = 5;
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RCC_OscInitStruct.PLL.PLLN = 160;
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RCC_OscInitStruct.PLL.PLLFRACN = 0;
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RCC_OscInitStruct.PLL.PLLP = 2;
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RCC_OscInitStruct.PLL.PLLR = 2;
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RCC_OscInitStruct.PLL.PLLQ = 4;
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RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOMEDIUM;
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RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_2;
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HAL_RCC_OscConfig(&RCC_OscInitStruct);
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/* PLL3 for USB Clock */
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PeriphClkInitStruct.PLL3.PLL3M = 25;
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PeriphClkInitStruct.PLL3.PLL3N = 336;
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PeriphClkInitStruct.PLL3.PLL3FRACN = 0;
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PeriphClkInitStruct.PLL3.PLL3P = 2;
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PeriphClkInitStruct.PLL3.PLL3R = 2;
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PeriphClkInitStruct.PLL3.PLL3Q = 7;
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PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_USB;
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PeriphClkInitStruct.UsbClockSelection = RCC_USBCLKSOURCE_PLL3;
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HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
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/* Select PLL as system clock source and configure bus clocks dividers */
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RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_D1PCLK1 | RCC_CLOCKTYPE_PCLK1 | \
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RCC_CLOCKTYPE_PCLK2 | RCC_CLOCKTYPE_D3PCLK1);
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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.APB1CLKDivider = RCC_APB1_DIV2;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2;
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RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV1;
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HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4);
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/*activate CSI clock mondatory for I/O Compensation Cell*/
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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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}
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void board_init(void)
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{
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SystemClock_Config();
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all_rcc_clk_enable();
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#if CFG_TUSB_OS == OPT_OS_NONE
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// 1ms tick timer
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SysTick_Config(SystemCoreClock / 1000);
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#endif
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GPIO_InitTypeDef GPIO_InitStruct;
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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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// 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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#if 0
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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 = UARTx;
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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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#endif
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#if BOARD_DEVICE_RHPORT_NUM == 0
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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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// PA9 VUSB, PA10 ID, PA11 DM, PA12 DP
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__HAL_RCC_GPIOA_CLK_ENABLE();
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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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/* 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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/* 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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// https://community.st.com/s/question/0D50X00009XkYZLSA3/stm32h7-nucleo-usb-fs-cdc
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// TODO: Board init actually works fine without this line.
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HAL_PWREx_EnableUSBVoltageDetector();
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__HAL_RCC_USB2_OTG_FS_CLK_ENABLE();
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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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#elif BOARD_DEVICE_RHPORT_NUM == 1
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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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__GPIOA_CLK_ENABLE();
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__GPIOB_CLK_ENABLE();
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__GPIOC_CLK_ENABLE();
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__GPIOH_CLK_ENABLE();
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__GPIOI_CLK_ENABLE();
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/* CLK */
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GPIO_InitStruct.Pin = 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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/* D0 */
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GPIO_InitStruct.Pin = 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(GPIOA, &GPIO_InitStruct);
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/* D1 D2 D3 D4 D5 D6 D7 */
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GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_5 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12 | GPIO_PIN_13;
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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(GPIOB, &GPIO_InitStruct);
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/* STP */
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GPIO_InitStruct.Pin = GPIO_PIN_0;
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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(GPIOC, &GPIO_InitStruct);
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/* NXT */
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GPIO_InitStruct.Pin = GPIO_PIN_4;
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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(GPIOH, &GPIO_InitStruct);
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/* DIR */
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GPIO_InitStruct.Pin = GPIO_PIN_11;
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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(GPIOI, &GPIO_InitStruct);
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// Enable ULPI clock
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__HAL_RCC_USB1_OTG_HS_ULPI_CLK_ENABLE();
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/* Enable USB HS Clocks */
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__HAL_RCC_USB1_OTG_HS_CLK_ENABLE();
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// No VBUS sense
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USB_OTG_HS->GCCFG &= ~USB_OTG_GCCFG_VBDEN;
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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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// B-peripheral session valid override enabl
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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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HAL_PWREx_EnableUSBVoltageDetector();
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#endif // rhport = 1
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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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{
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HAL_GPIO_WritePin(LED_PORT, LED_PIN, state);
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}
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uint32_t board_button_read(void)
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{
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return (BUTTON_STATE_ACTIVE == HAL_GPIO_ReadPin(BUTTON_PORT, BUTTON_PIN)) ? 1 : 0;
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}
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int board_uart_read(uint8_t* buf, int len)
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{
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(void) buf; (void) len;
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return 0;
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}
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int board_uart_write(void const * buf, int len)
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{
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(void) buf; (void) len;
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// HAL_UART_Transmit(&UartHandle, (uint8_t*) buf, len, 0xffff);
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return len;
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}
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#if CFG_TUSB_OS == OPT_OS_NONE
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volatile uint32_t system_ticks = 0;
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void SysTick_Handler (void)
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{
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system_ticks++;
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}
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uint32_t board_millis(void)
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{
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return system_ticks;
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}
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#endif
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void HardFault_Handler (void)
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{
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asm("bkpt");
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}
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// Required by __libc_init_array in startup code if we are compiling using
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// -nostdlib/-nostartfiles.
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void _init(void)
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{
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}
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