104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
/*
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* File : board.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2009 RT-Thread Develop Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2009-01-05 Bernard first implementation
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* 2018-03-15 flyingcys add amebaz
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*/
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#include <rtl8710b.h>
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#include <stdint.h>
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#include "board.h"
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#include "drv_uart.h"
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#ifdef __ICCARM__
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#pragma section="HEAP"
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#define HEAP_BEGIN (__segment_end("HEAP"))
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#elif defined(__GNUC__)
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extern int __rtt_heap_start;
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#define HEAP_BEGIN (&__rtt_heap_start)
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#else
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#error "not support toolchain!!!"
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#endif
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#define HEAP_END (0x1002FFFF)
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#ifdef __GNUC__
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void __wrap_rtl_printf(const char *fmt, ...)
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{
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va_list args;
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rt_size_t length;
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static char rt_log_buf[RT_CONSOLEBUF_SIZE];
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va_start(args, fmt);
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/* the return value of vsnprintf is the number of bytes that would be
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* written to buffer had if the size of the buffer been sufficiently
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* large excluding the terminating null byte. If the output string
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* would be larger than the rt_log_buf, we have to adjust the output
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* length. */
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length = rt_vsnprintf(rt_log_buf, sizeof(rt_log_buf) - 1, fmt, args);
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if (length > RT_CONSOLEBUF_SIZE - 1)
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length = RT_CONSOLEBUF_SIZE - 1;
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rt_kprintf("%s", rt_log_buf);
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va_end(args);
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}
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#endif
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/**
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* This is the timer interrupt service routine.
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*
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*/
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void SysTick_Handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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rt_tick_increase();
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/* leave interrupt */
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rt_interrupt_leave();
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}
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uint32_t SysTick_Config(uint32_t ticks)
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{
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if ((ticks - 1) > SysTick_LOAD_RELOAD_Msk) return (1); /* Reload value impossible */
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SysTick->LOAD = ticks - 1; /* set reload register */
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NVIC_SetPriority (SysTick_IRQn, (1<<__NVIC_PRIO_BITS) - 1); /* set Priority for Systick Interrupt */
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SysTick->VAL = 0; /* Load the SysTick Counter Value */
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SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
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SysTick_CTRL_TICKINT_Msk |
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SysTick_CTRL_ENABLE_Msk; /* Enable SysTick IRQ and SysTick Timer */
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return (0); /* Function successful */
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}
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/**
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* This function will initial board.
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*/
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void rt_hw_board_init(void)
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{
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extern uint32_t SystemCoreClock;
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SysTick_Config(SystemCoreClock/RT_TICK_PER_SECOND);
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#ifdef RT_USING_HEAP
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rt_system_heap_init((void*)HEAP_BEGIN, (void*)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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#ifdef RT_USING_CONSOLE
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rt_hw_uart_init();
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rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
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#endif
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}
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/*@}*/
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