77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
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/*
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* Copyright (c) 2006-2018, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2018/11/29 Bernard the first version
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*/
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#include <rthw.h>
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#include <rtthread.h>
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#include "board.h"
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#include "drv_uart.h"
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#include "pin_mux.h"
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#include "clock_config.h"
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#include <fsl_clock.h>
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#include <fsl_intmux.h>
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void LPIT0_IRQHandler(void)
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{
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rt_tick_increase();
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SystemClearSystickFlag();
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}
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int rt_hw_systick_init(void)
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{
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CLOCK_SetIpSrc(kCLOCK_Lpit0, kCLOCK_IpSrcFircAsync);
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SystemSetupSystick (RT_TICK_PER_SECOND, 0);
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SystemClearSystickFlag();
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return 0;
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}
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const scg_lpfll_config_t g_appScgLpFllConfig_BOARD_BootClockRUN = {
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.enableMode = kSCG_LpFllEnable, /* LPFLL clock disabled */
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.div1 = kSCG_AsyncClkDivBy1, /* Low Power FLL Clock Divider 1: Clock output is disabled */
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.div2 = kSCG_AsyncClkDisable, /* Low Power FLL Clock Divider 2: Clock output is disabled */
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.div3 = kSCG_AsyncClkDisable, /* Low Power FLL Clock Divider 3: Clock output is disabled */
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.range = kSCG_LpFllRange72M, /* LPFLL is trimmed to 72MHz */
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.trimConfig = NULL,
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};
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void rt_hw_board_init(void)
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{
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BOARD_InitPins();
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BOARD_BootClockRUN();
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/* Init LPFLL */
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CLOCK_InitLpFll(&g_appScgLpFllConfig_BOARD_BootClockRUN);
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INTMUX_Init(INTMUX0);
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INTMUX_EnableInterrupt(INTMUX0, 0, PORTC_IRQn);
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/* initialize hardware interrupt */
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rt_hw_uart_init();
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rt_hw_systick_init();
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#ifdef RT_USING_CONSOLE
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/* set console device */
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rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
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#endif /* RT_USING_CONSOLE */
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#ifdef RT_USING_HEAP
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/* initialize memory system */
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rt_system_heap_init(RT_HW_HEAP_BEGIN, RT_HW_HEAP_END);
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#endif
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#ifdef RT_USING_COMPONENTS_INIT
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rt_components_board_init();
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#endif
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}
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