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/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2009-09-22 Bernard add board.h to this bsp
* 2018-09-02 xuzhuoyi modify for TMS320F28379D version
* 2022-06-21 guyunjie fix bugs in trap_rtosint and enable interrupt nesting
* 2022-08-21 yuqi adding onboard devices initialization code
*/
#include <rtthread.h>
#include "board.h"
#include "drv_sci.h"
#include "drv_gpio.h"
#include "F28x_Project.h"
#ifndef RT_USING_SMP
extern volatile rt_atomic_t rt_interrupt_nest;
#endif
extern rt_uint32_t rt_thread_switch_interrupt_flag;
extern interrupt void rtosint_handler();
/**
* This is the timer interrupt service routine.
*
*/
interrupt void cpu_timer2_isr(void)
{
CpuTimer2Regs.TCR.all = 0xC000;
rt_interrupt_enter();
rt_tick_increase();
rt_interrupt_leave();
}
extern interrupt void XINT1_Handler(void);
extern interrupt void XINT2_Handler(void);
/**
* This function will initial TMS320F28379D board.
*/
void rt_hw_board_init()
{
/* Configure the system clock @ 84 Mhz */
InitSysCtrl();
DINT;
InitPieCtrl();
IER = 0x0000;
IFR = 0x0000;
InitPieVectTable();
#ifdef _FLASH
memcpy(&RamfuncsRunStart, &RamfuncsLoadStart, (Uint32)&RamfuncsLoadSize);
InitFlash();
#endif
EALLOW; // This is needed to write to EALLOW protected registers
PieVectTable.TIMER2_INT = &cpu_timer2_isr;
PieVectTable.RTOS_INT = &rtosint_handler;
#ifdef BSP_USING_XINT1
PieVectTable.XINT1_INT = &XINT1_Handler;
#endif
#ifdef BSP_USING_XINT2
PieVectTable.XINT2_INT = &XINT2_Handler;
#endif
#ifdef BSP_USING_XINT3
PieVectTable.XINT3_INT = &XINT3_Handler;
#endif
#ifdef BSP_USING_XINT4
PieVectTable.XINT4_INT = &XINT4_Handler;
#endif
#ifdef BSP_USING_XINT5
PieVectTable.XINT5_INT = &XINT5_Handler;
#endif
EDIS;
InitCpuTimers();
ConfigCpuTimer(&CpuTimer2, 200, 1000000 / RT_TICK_PER_SECOND);
CpuTimer2Regs.TCR.all = 0x4000;
IER |= M_INT14;
IER |= M_INT1;
#ifdef RT_USING_HEAP
rt_system_heap_init(&__ebss_end, &(__heap_end));
#endif
#ifdef RT_USING_SERIAL
rt_hw_sci_init();
#endif
#ifdef RT_USING_PIN
rt_hw_pin_init();
#endif
#ifdef RT_USING_COMPONENTS_INIT
rt_components_board_init();
#endif
#if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE)
rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
#endif
}
int _args_main()
{
/* _args_main is the entry point called by _c_int00. We define it
* here to override the one defined by the compiler in args_main.c */
extern int rtthread_startup();
/* startup RT-Thread RTOS */
rtthread_startup();
/* never reach here*/
return 0;
}
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