/*
* The MIT License (MIT)
*
* Copyright (c) 2019 William D. Jones (thor0505@comcast.net),
* 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.
*/
#include "../board.h"
#include "stm32h7xx_hal.h"
//--------------------------------------------------------------------+
// Forward USB interrupt events to TinyUSB IRQ Handler
//--------------------------------------------------------------------+
// Despite being call USB2_OTG
// OTG_FS is marked as RHPort0 by TinyUSB to be consistent across stm32 port
void OTG_FS_IRQHandler(void)
{
tud_int_handler(0);
}
// Despite being call USB2_OTG
// OTG_HS is marked as RHPort1 by TinyUSB to be consistent across stm32 port
void OTG_HS_IRQHandler(void)
{
tud_int_handler(1);
}
//--------------------------------------------------------------------+
// MACRO TYPEDEF CONSTANT ENUM
//--------------------------------------------------------------------+
#define LED_PORT GPIOA
#define LED_PIN GPIO_PIN_4
#define LED_STATE_ON 1
// Tamper push-button
#define BUTTON_PORT GPIOC
#define BUTTON_PIN GPIO_PIN_13
#define BUTTON_STATE_ACTIVE 0
// Need to change jumper setting J7 and J8 from RS-232 to STLink
#define UARTx USART1
#define UART_GPIO_PORT GPIOB
#define UART_GPIO_AF GPIO_AF4_USART1
#define UART_TX_PIN GPIO_PIN_14
#define UART_RX_PIN GPIO_PIN_15
UART_HandleTypeDef UartHandle;
// enable all LED, Button, Uart, USB clock
static void all_rcc_clk_enable(void)
{
__HAL_RCC_GPIOA_CLK_ENABLE(); // LED
__HAL_RCC_GPIOC_CLK_ENABLE(); // Button
__HAL_RCC_GPIOB_CLK_ENABLE(); // Uart tx, rx
__HAL_RCC_USART1_CLK_ENABLE(); // Uart module
}
/* PWR, RCC, GPIO (All): AHB4 (D3 domain)
USB{1,2} OTG_{H,F}S: AHB1 (D2 domain)
*/
/**
* @brief System Clock Configuration
* The system Clock is configured as follow :
* System Clock source = PLL (HSE)
* SYSCLK(Hz) = 400000000 (CPU Clock)
* HCLK(Hz) = 200000000 (AXI and AHBs Clock)
* AHB Prescaler = 2
* D1 APB3 Prescaler = 2 (APB3 Clock 100MHz)
* D2 APB1 Prescaler = 2 (APB1 Clock 100MHz)
* D2 APB2 Prescaler = 2 (APB2 Clock 100MHz)
* D3 APB4 Prescaler = 2 (APB4 Clock 100MHz)
* HSE Frequency(Hz) = 25000000
* PLL_M = 5
* PLL_N = 160
* PLL_P = 2
* PLL_Q = 4
* PLL_R = 2
* PLL3_M = 25
* PLL3_N = 336
* PLL3_P = 2
* PLL3_Q = 7
* PLL3_R = 2
* VDD(V) = 3.3
* Flash Latency(WS) = 4
* @param None
* @retval None
*/
void SystemClock_Config(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
/*!< Supply configuration update enable */
HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);
/* 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);
while ((PWR->D3CR & (PWR_D3CR_VOSRDY)) != PWR_D3CR_VOSRDY) {}
/* Enable HSE Oscillator and activate PLL with HSE as source */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.HSIState = RCC_HSI_OFF;
RCC_OscInitStruct.CSIState = RCC_CSI_OFF;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
/* PLL1 for System Clock */
RCC_OscInitStruct.PLL.PLLM = 5;
RCC_OscInitStruct.PLL.PLLN = 160;
RCC_OscInitStruct.PLL.PLLFRACN = 0;
RCC_OscInitStruct.PLL.PLLP = 2;
RCC_OscInitStruct.PLL.PLLR = 2;
RCC_OscInitStruct.PLL.PLLQ = 4;
RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOMEDIUM;
RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_2;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
/* PLL3 for USB Clock */
PeriphClkInitStruct.PLL3.PLL3M = 25;
PeriphClkInitStruct.PLL3.PLL3N = 336;
PeriphClkInitStruct.PLL3.PLL3FRACN = 0;
PeriphClkInitStruct.PLL3.PLL3P = 2;
PeriphClkInitStruct.PLL3.PLL3R = 2;
PeriphClkInitStruct.PLL3.PLL3Q = 7;
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_USB;
PeriphClkInitStruct.UsbClockSelection = RCC_USBCLKSOURCE_PLL3;
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
/* Select PLL as system clock source and configure bus clocks dividers */
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_D1PCLK1 | RCC_CLOCKTYPE_PCLK1 | \
RCC_CLOCKTYPE_PCLK2 | RCC_CLOCKTYPE_D3PCLK1);
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2;
RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV1;
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4);
/*activate CSI clock mondatory for I/O Compensation Cell*/
__HAL_RCC_CSI_ENABLE() ;
/* Enable SYSCFG clock mondatory for I/O Compensation Cell */
__HAL_RCC_SYSCFG_CLK_ENABLE() ;
/* Enables the I/O Compensation Cell */
HAL_EnableCompensationCell();
}
void board_init(void)
{
SystemClock_Config();
all_rcc_clk_enable();
// 1ms tick timer
SysTick_Config(SystemCoreClock / 1000);
#if CFG_TUSB_OS == OPT_OS_FREERTOS
// If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
NVIC_SetPriority(OTG_FS_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
NVIC_SetPriority(OTG_HS_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
#endif
GPIO_InitTypeDef GPIO_InitStruct;
// LED
GPIO_InitStruct.Pin = LED_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(LED_PORT, &GPIO_InitStruct);
// Button
GPIO_InitStruct.Pin = BUTTON_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(BUTTON_PORT, &GPIO_InitStruct);
// Uart
GPIO_InitStruct.Pin = UART_TX_PIN | UART_RX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = UART_GPIO_AF;
HAL_GPIO_Init(UART_GPIO_PORT, &GPIO_InitStruct);
UartHandle.Instance = UARTx;
UartHandle.Init.BaudRate = CFG_BOARD_UART_BAUDRATE;
UartHandle.Init.WordLength = UART_WORDLENGTH_8B;
UartHandle.Init.StopBits = UART_STOPBITS_1;
UartHandle.Init.Parity = UART_PARITY_NONE;
UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
UartHandle.Init.Mode = UART_MODE_TX_RX;
UartHandle.Init.OverSampling = UART_OVERSAMPLING_16;
HAL_UART_Init(&UartHandle);
#if BOARD_DEVICE_RHPORT_NUM == 0
// Despite being call USB2_OTG
// OTG_FS is marked as RHPort0 by TinyUSB to be consistent across stm32 port
// PA9 VUSB, PA10 ID, PA11 DM, PA12 DP
__HAL_RCC_GPIOA_CLK_ENABLE();
/* Configure DM DP Pins */
GPIO_InitStruct.Pin = GPIO_PIN_11 | GPIO_PIN_12;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* Configure VBUS Pin */
GPIO_InitStruct.Pin = GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* This for ID line debug */
GPIO_InitStruct.Pin = GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
// https://community.st.com/s/question/0D50X00009XkYZLSA3/stm32h7-nucleo-usb-fs-cdc
// TODO: Board init actually works fine without this line.
HAL_PWREx_EnableUSBVoltageDetector();
__HAL_RCC_USB2_OTG_FS_CLK_ENABLE();
// Enable VBUS sense (B device) via pin PA9
USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_VBDEN;
#elif BOARD_DEVICE_RHPORT_NUM == 1
// Despite being call USB2_OTG
// OTG_HS is marked as RHPort1 by TinyUSB to be consistent across stm32 port
__GPIOA_CLK_ENABLE();
__GPIOB_CLK_ENABLE();
__GPIOC_CLK_ENABLE();
__GPIOH_CLK_ENABLE();
__GPIOI_CLK_ENABLE();
/* CLK */
GPIO_InitStruct.Pin = GPIO_PIN_5;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* D0 */
GPIO_InitStruct.Pin = GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* D1 D2 D3 D4 D5 D6 D7 */
GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_5 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12 | GPIO_PIN_13;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* STP */
GPIO_InitStruct.Pin = GPIO_PIN_0;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/* NXT */
GPIO_InitStruct.Pin = GPIO_PIN_4;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
HAL_GPIO_Init(GPIOH, &GPIO_InitStruct);
/* DIR */
GPIO_InitStruct.Pin = GPIO_PIN_11;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
HAL_GPIO_Init(GPIOI, &GPIO_InitStruct);
// Enable ULPI clock
__HAL_RCC_USB1_OTG_HS_ULPI_CLK_ENABLE();
/* Enable USB HS Clocks */
__HAL_RCC_USB1_OTG_HS_CLK_ENABLE();
// No VBUS sense
USB_OTG_HS->GCCFG &= ~USB_OTG_GCCFG_VBDEN;
// B-peripheral session valid override enable
USB_OTG_HS->GOTGCTL |= USB_OTG_GOTGCTL_BVALOEN;
USB_OTG_HS->GOTGCTL |= USB_OTG_GOTGCTL_BVALOVAL;
// Force device mode
USB_OTG_HS->GUSBCFG &= ~USB_OTG_GUSBCFG_FHMOD;
USB_OTG_HS->GUSBCFG |= USB_OTG_GUSBCFG_FDMOD;
HAL_PWREx_EnableUSBVoltageDetector();
#endif // rhport = 1
}
//--------------------------------------------------------------------+
// Board porting API
//--------------------------------------------------------------------+
void board_led_write(bool state)
{
HAL_GPIO_WritePin(LED_PORT, LED_PIN, state);
}
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)
{
}