233 lines
6.4 KiB
C
233 lines
6.4 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2022, Rafael Silva
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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 <stdio.h>
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#include "bsp/board.h"
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#include "bsp_api.h"
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#include "r_ioport.h"
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#include "r_ioport_api.h"
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#include "renesas.h"
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/* Key code for writing PRCR register. */
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#define BSP_PRV_PRCR_KEY (0xA500U)
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#define BSP_PRV_PRCR_PRC1_UNLOCK ((BSP_PRV_PRCR_KEY) | 0x2U)
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#define BSP_PRV_PRCR_LOCK ((BSP_PRV_PRCR_KEY) | 0x0U)
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#define SW1 (BSP_IO_PORT_01_PIN_05)
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#define LED1 (BSP_IO_PORT_01_PIN_06)
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#define LED_STATE_ON 1
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#define BUTTON_STATE_ACTIVE 0
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/* ISR prototypes */
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void usbfs_interrupt_handler(void);
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void usbfs_resume_handler(void);
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void usbfs_d0fifo_handler(void);
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void usbfs_d1fifo_handler(void);
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BSP_DONT_REMOVE const
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fsp_vector_t g_vector_table[BSP_ICU_VECTOR_MAX_ENTRIES] BSP_PLACE_IN_SECTION(BSP_SECTION_APPLICATION_VECTORS) = {
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[0] = usbfs_interrupt_handler, /* USBFS INT (USBFS interrupt) */
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[1] = usbfs_resume_handler, /* USBFS RESUME (USBFS resume interrupt) */
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[2] = usbfs_d0fifo_handler, /* USBFS FIFO 0 (DMA transfer request 0) */
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[3] = usbfs_d1fifo_handler, /* USBFS FIFO 1 (DMA transfer request 1) */
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};
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const bsp_interrupt_event_t g_interrupt_event_link_select[BSP_ICU_VECTOR_MAX_ENTRIES] = {
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[0] = BSP_PRV_IELS_ENUM(EVENT_USBFS_INT), /* USBFS INT (USBFS interrupt) */
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[1] = BSP_PRV_IELS_ENUM(EVENT_USBFS_RESUME), /* USBFS RESUME (USBFS resume interrupt) */
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[2] = BSP_PRV_IELS_ENUM(EVENT_USBFS_FIFO_0), /* USBFS FIFO 0 (DMA transfer request 0) */
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[3] = BSP_PRV_IELS_ENUM(EVENT_USBFS_FIFO_1) /* USBFS FIFO 1 (DMA transfer request 1) */
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};
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const ioport_pin_cfg_t g_bsp_pin_cfg_data[] = {
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{ .pin = LED1, .pin_cfg = ((uint32_t) IOPORT_CFG_PORT_DIRECTION_OUTPUT | (uint32_t) IOPORT_CFG_PORT_OUTPUT_LOW) },
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{ .pin = SW1 , .pin_cfg = ((uint32_t) IOPORT_CFG_PORT_DIRECTION_INPUT) },
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{ .pin = BSP_IO_PORT_04_PIN_07, .pin_cfg = ((uint32_t) IOPORT_CFG_PERIPHERAL_PIN | (uint32_t) IOPORT_PERIPHERAL_USB_FS) },
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{ .pin = BSP_IO_PORT_09_PIN_14, .pin_cfg = ((uint32_t) IOPORT_CFG_PERIPHERAL_PIN | (uint32_t) IOPORT_PERIPHERAL_USB_FS) },
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{ .pin = BSP_IO_PORT_09_PIN_15, .pin_cfg = ((uint32_t) IOPORT_CFG_PERIPHERAL_PIN | (uint32_t) IOPORT_PERIPHERAL_USB_FS) },
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};
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const ioport_cfg_t g_bsp_pin_cfg = {
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.number_of_pins = sizeof(g_bsp_pin_cfg_data) / sizeof(ioport_pin_cfg_t),
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.p_pin_cfg_data = &g_bsp_pin_cfg_data[0],
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};
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ioport_instance_ctrl_t g_ioport_ctrl;
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const ioport_instance_t g_ioport = {.p_api = &g_ioport_on_ioport, .p_ctrl = &g_ioport_ctrl, .p_cfg = &g_bsp_pin_cfg};
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//--------------------------------------------------------------------+
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// Forward USB interrupt events to TinyUSB IRQ Handler
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//--------------------------------------------------------------------+
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void usbfs_interrupt_handler(void)
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{
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IRQn_Type irq = R_FSP_CurrentIrqGet();
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R_BSP_IrqStatusClear(irq);
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#if CFG_TUH_ENABLED
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tuh_int_handler(0);
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#endif
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#if CFG_TUD_ENABLED
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tud_int_handler(0);
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#endif
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}
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void usbfs_resume_handler(void)
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{
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IRQn_Type irq = R_FSP_CurrentIrqGet();
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R_BSP_IrqStatusClear(irq);
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#if CFG_TUH_ENABLED
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tuh_int_handler(0);
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#endif
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#if CFG_TUD_ENABLED
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tud_int_handler(0);
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#endif
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}
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void usbfs_d0fifo_handler(void)
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{
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IRQn_Type irq = R_FSP_CurrentIrqGet();
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R_BSP_IrqStatusClear(irq);
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#if CFG_TUH_ENABLED
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tuh_int_handler(0);
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#endif
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#if CFG_TUD_ENABLED
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tud_int_handler(0);
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#endif
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}
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void usbfs_d1fifo_handler(void)
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{
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IRQn_Type irq = R_FSP_CurrentIrqGet();
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R_BSP_IrqStatusClear(irq);
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#if CFG_TUH_ENABLED
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tuh_int_handler(0);
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#endif
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#if CFG_TUD_ENABLED
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tud_int_handler(0);
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#endif
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}
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void board_init(void)
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{
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/* Configure pins. */
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R_IOPORT_Open(&g_ioport_ctrl, &g_bsp_pin_cfg);
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/* Enable USB_BASE */
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R_SYSTEM->PRCR = (uint16_t) BSP_PRV_PRCR_PRC1_UNLOCK;
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R_MSTP->MSTPCRB &= ~(1U << 11U);
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R_SYSTEM->PRCR = (uint16_t) BSP_PRV_PRCR_LOCK;
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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(TU_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY);
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NVIC_SetPriority(USBFS_RESUME_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY);
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NVIC_SetPriority(USBFS_FIFO_0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY);
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NVIC_SetPriority(USBFS_FIFO_1_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY);
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#endif
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#if CFG_TUSB_OS == OPT_OS_NONE
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/* Init systick */
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SysTick_Config(SystemCoreClock / 1000);
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#endif
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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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R_IOPORT_PinWrite(&g_ioport_ctrl, LED1, state ? LED_STATE_ON : !LED_STATE_ON);
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}
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uint32_t board_button_read(void)
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{
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bsp_io_level_t lvl;
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R_IOPORT_PinRead(&g_ioport_ctrl, SW1, &lvl);
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return lvl == BUTTON_STATE_ACTIVE;
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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;
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(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;
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(void) len;
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return 0;
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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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#else
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#endif
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int close(int fd)
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{
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(void) fd;
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return -1;
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}
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int fstat(int fd, void *pstat)
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{
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(void) fd;
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(void) pstat;
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return 0;
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}
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off_t lseek(int fd, off_t pos, int whence)
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{
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(void) fd;
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(void) pos;
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(void) whence;
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return 0;
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}
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int isatty(int fd)
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{
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(void) fd;
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return 1;
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}
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