rt-thread/bsp/amebaz/drivers/board.c

100 lines
2.7 KiB
C

/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2009-01-05 Bernard first implementation
* 2018-03-15 flyingcys add amebaz
*/
#include <rtl8710b.h>
#include <stdint.h>
#include "board.h"
#include "drv_uart.h"
#ifdef __ICCARM__
#pragma section="HEAP"
#define HEAP_BEGIN (__segment_end("HEAP"))
#elif defined(__GNUC__)
extern int __rtt_heap_start;
#define HEAP_BEGIN (&__rtt_heap_start)
#else
#error "not support toolchain!!!"
#endif
#define HEAP_END (0x1002FFFF)
#ifdef __GNUC__
void __wrap_rtl_printf(const char *fmt, ...)
{
va_list args;
rt_size_t length;
static char rt_log_buf[RT_CONSOLEBUF_SIZE];
va_start(args, fmt);
/* the return value of vsnprintf is the number of bytes that would be
* written to buffer had if the size of the buffer been sufficiently
* large excluding the terminating null byte. If the output string
* would be larger than the rt_log_buf, we have to adjust the output
* length. */
length = rt_vsnprintf(rt_log_buf, sizeof(rt_log_buf) - 1, fmt, args);
if (length > RT_CONSOLEBUF_SIZE - 1)
length = RT_CONSOLEBUF_SIZE - 1;
rt_kprintf("%s", rt_log_buf);
va_end(args);
}
#endif
/**
* This is the timer interrupt service routine.
*
*/
void SysTick_Handler(void)
{
/* enter interrupt */
rt_interrupt_enter();
rt_tick_increase();
/* leave interrupt */
rt_interrupt_leave();
}
uint32_t SysTick_Config(uint32_t ticks)
{
if ((ticks - 1) > SysTick_LOAD_RELOAD_Msk) return (1); /* Reload value impossible */
SysTick->LOAD = ticks - 1; /* set reload register */
NVIC_SetPriority (SysTick_IRQn, (1<<__NVIC_PRIO_BITS) - 1); /* set Priority for Systick Interrupt */
SysTick->VAL = 0; /* Load the SysTick Counter Value */
SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
SysTick_CTRL_TICKINT_Msk |
SysTick_CTRL_ENABLE_Msk; /* Enable SysTick IRQ and SysTick Timer */
return (0); /* Function successful */
}
/**
* This function will initial board.
*/
void rt_hw_board_init(void)
{
extern uint32_t SystemCoreClock;
SysTick_Config(SystemCoreClock/RT_TICK_PER_SECOND);
#ifdef RT_USING_HEAP
rt_system_heap_init((void*)HEAP_BEGIN, (void*)HEAP_END);
#endif
#ifdef RT_USING_COMPONENTS_INIT
rt_components_board_init();
#endif
#ifdef RT_USING_CONSOLE
rt_hw_uart_init();
rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
#endif
}
/*@}*/