/* * The MIT License (MIT) * * Copyright (c) 2019 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. */ /* metadata: manufacturer: Artery */ #include "at32f423_clock.h" #include "board.h" #include "bsp/board_api.h" void usb_clock48m_select(usb_clk48_s clk_s); void led_and_button_init(void); void uart_print_init(uint32_t baudrate); //--------------------------------------------------------------------+ // Forward USB interrupt events to TinyUSB IRQ Handler //--------------------------------------------------------------------+ void OTGFS1_IRQHandler(void) { tusb_int_handler(0, true); } void OTGFS1_WKUP_IRQHandler(void) { tusb_int_handler(0, true); } void board_init(void) { /* config nvic priority group */ nvic_priority_group_config(NVIC_PRIORITY_GROUP_4); /* config system clock */ system_clock_config(); /* enable usb clock */ crm_periph_clock_enable(OTG_CLOCK, TRUE); /* select usb 48m clcok source */ usb_clock48m_select(USB_CLK_HEXT); /* vbus ignore */ board_vbus_sense_init(); /* configure systick */ systick_clock_source_config(SYSTICK_CLOCK_SOURCE_AHBCLK_NODIV); 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_IRQ, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY); #endif /* otgfs use vbus pin */ #ifndef USB_VBUS_IGNORE gpio_init_type gpio_init_struct; crm_periph_clock_enable(OTG_PIN_GPIO_CLOCK, TRUE); gpio_default_para_init(&gpio_init_struct); gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER; gpio_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL; gpio_init_struct.gpio_mode = GPIO_MODE_MUX; gpio_init_struct.gpio_pins = OTG_PIN_VBUS; gpio_init_struct.gpio_pull = GPIO_PULL_DOWN; gpio_pin_mux_config(OTG_PIN_GPIO, OTG_PIN_VBUS_SOURCE, OTG_PIN_MUX); gpio_init(OTG_PIN_GPIO, &gpio_init_struct); #endif /* config led and key */ led_and_button_init(); /* config usart printf */ uart_print_init(115200); printf("usart printf config success!\r\n"); } //--------------------------------------------------------------------+ // Board porting API //--------------------------------------------------------------------+ /** * @brief usb 48M clock select * @param clk_s:USB_CLK_HICK, USB_CLK_HEXT * @retval none */ void usb_clock48m_select(usb_clk48_s clk_s) { if (clk_s == USB_CLK_HICK) { crm_usb_clock_source_select(CRM_USB_CLOCK_SOURCE_HICK); /* enable the acc calibration ready interrupt */ crm_periph_clock_enable(CRM_ACC_PERIPH_CLOCK, TRUE); /* update the c1\c2\c3 value */ acc_write_c1(7980); acc_write_c2(8000); acc_write_c3(8020); /* open acc calibration */ acc_calibration_mode_enable(ACC_CAL_HICKTRIM, TRUE); } else { switch (system_core_clock) { /* 48MHz */ case 48000000: crm_usb_clock_div_set(CRM_USB_DIV_2); break; /* 72MHz */ case 72000000: crm_usb_clock_div_set(CRM_USB_DIV_3); break; /* 96MHz */ case 96000000: crm_usb_clock_div_set(CRM_USB_DIV_4); break; /* 120MHz */ case 120000000: crm_usb_clock_div_set(CRM_USB_DIV_5); break; /* 144MHz */ case 144000000: crm_usb_clock_div_set(CRM_USB_DIV_6); break; default: break; } } } void uart_print_init(uint32_t baudrate) { gpio_init_type gpio_init_struct; /* enable the uart and gpio clock */ crm_periph_clock_enable(PRINT_UART_CRM_CLK, TRUE); crm_periph_clock_enable(PRINT_UART_TX_GPIO_CRM_CLK, TRUE); gpio_default_para_init(&gpio_init_struct); /* configure the uart tx pin */ gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER; gpio_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL; gpio_init_struct.gpio_mode = GPIO_MODE_MUX; gpio_init_struct.gpio_pins = PRINT_UART_TX_PIN; gpio_init_struct.gpio_pull = GPIO_PULL_NONE; gpio_init(PRINT_UART_TX_GPIO, &gpio_init_struct); gpio_pin_mux_config(PRINT_UART_TX_GPIO, PRINT_UART_TX_PIN_SOURCE, PRINT_UART_TX_PIN_MUX_NUM); /* configure uart param */ usart_init(PRINT_UART, baudrate, USART_DATA_8BITS, USART_STOP_1_BIT); usart_transmitter_enable(PRINT_UART, TRUE); usart_enable(PRINT_UART, TRUE); } void led_and_button_init(void) { /* LED */ gpio_init_type gpio_led_init_struct; /* enable the led clock */ LED_GPIO_CLK_EN(); /* set default parameter */ gpio_default_para_init(&gpio_led_init_struct); /* configure the led gpio */ gpio_led_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER; gpio_led_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL; gpio_led_init_struct.gpio_mode = GPIO_MODE_OUTPUT; gpio_led_init_struct.gpio_pins = LED_PIN; gpio_led_init_struct.gpio_pull = GPIO_PULL_NONE; gpio_init(LED_PORT, &gpio_led_init_struct); /* Button */ gpio_init_type gpio_button_init_struct; /* enable the button clock */ BUTTON_GPIO_CLK_EN(); /* set default parameter */ gpio_default_para_init(&gpio_button_init_struct); /* configure the button gpio */ gpio_button_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER; gpio_button_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL; gpio_button_init_struct.gpio_mode = GPIO_MODE_INPUT; gpio_button_init_struct.gpio_pins = BUTTON_PIN; gpio_button_init_struct.gpio_pull = GPIO_PULL_DOWN; gpio_init(BUTTON_PORT, &gpio_button_init_struct); } void board_led_write(bool state) { gpio_bits_write(LED_PORT, LED_PIN, state ^ (!LED_STATE_ON)); } uint32_t board_button_read(void) { return gpio_input_data_bit_read(BUTTON_PORT, BUTTON_PIN); } size_t board_get_unique_id(uint8_t id[], size_t max_len) { (void) max_len; volatile uint32_t *at32_uuid = ((volatile uint32_t *) 0x1FFFF7E8); uint32_t *id32 = (uint32_t *) (uintptr_t) id; uint8_t const len = 12; id32[0] = at32_uuid[0]; id32[1] = at32_uuid[1]; id32[2] = at32_uuid[2]; return len; } int board_uart_read(uint8_t *buf, int len) { (void) buf; (void) len; return 0; } int board_uart_write(void const *buf, int len) { #if CFG_TUSB_OS == OPT_OS_NONE int txsize = len; u16 timeout = 0xffff; while (txsize--) { while (usart_flag_get(PRINT_UART, USART_TDBE_FLAG) == RESET) { timeout--; if (timeout == 0) { return 0; } } PRINT_UART->dt = (*((uint8_t const *) buf) & 0x01FF); buf++; } return len; #else (void) buf; (void) len; return 0; #endif } #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; } void SVC_Handler(void) { } void PendSV_Handler(void) { } #endif void HardFault_Handler(void) { __asm("BKPT #0\n"); } // Required by __libc_init_array in startup code if we are compiling using // -nostdlib/-nostartfiles. void _init(void) { } #ifdef USE_FULL_ASSERT void assert_failed(const char *file, uint32_t line) { /* USER CODE BEGIN 6 */ /* User can add his own implementation to report the file name and line number, tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ /* USER CODE END 6 */ } #endif /* USE_FULL_ASSERT */