1 /*
2 * Copyright (c) 2006-2021, RT-Thread Development Team
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 *
6 * Change Logs:
7 * Date Author Notes
8 * 2009-01-05 Bernard first implementation
9 * 2018-03-15 flyingcys add amebaz
10 */
11 #include <rtl8710b.h>
12 #include <stdint.h>
13 #include "board.h"
14 #include "drv_uart.h"
15
16 #ifdef __ICCARM__
17 #pragma section="HEAP"
18 #define HEAP_BEGIN (__segment_end("HEAP"))
19 #elif defined(__GNUC__)
20 extern int __rtt_heap_start;
21 #define HEAP_BEGIN (&__rtt_heap_start)
22 #else
23 #error "not support toolchain!!!"
24 #endif
25
26 #define HEAP_END (0x1002FFFF)
27
28 #ifdef __GNUC__
__wrap_rtl_printf(const char * fmt,...)29 void __wrap_rtl_printf(const char *fmt, ...)
30 {
31 va_list args;
32 rt_size_t length;
33 static char rt_log_buf[RT_CONSOLEBUF_SIZE];
34
35 va_start(args, fmt);
36 /* the return value of vsnprintf is the number of bytes that would be
37 * written to buffer had if the size of the buffer been sufficiently
38 * large excluding the terminating null byte. If the output string
39 * would be larger than the rt_log_buf, we have to adjust the output
40 * length. */
41 length = rt_vsnprintf(rt_log_buf, sizeof(rt_log_buf) - 1, fmt, args);
42 if (length > RT_CONSOLEBUF_SIZE - 1)
43 length = RT_CONSOLEBUF_SIZE - 1;
44 rt_kprintf("%s", rt_log_buf);
45 va_end(args);
46 }
47 #endif
48
49 /**
50 * This is the timer interrupt service routine.
51 *
52 */
SysTick_Handler(void)53 void SysTick_Handler(void)
54 {
55 /* enter interrupt */
56 rt_interrupt_enter();
57
58 rt_tick_increase();
59
60 /* leave interrupt */
61 rt_interrupt_leave();
62 }
63
SysTick_Config(uint32_t ticks)64 uint32_t SysTick_Config(uint32_t ticks)
65 {
66 if ((ticks - 1) > SysTick_LOAD_RELOAD_Msk) return (1); /* Reload value impossible */
67
68 SysTick->LOAD = ticks - 1; /* set reload register */
69 NVIC_SetPriority (SysTick_IRQn, (1<<__NVIC_PRIO_BITS) - 1); /* set Priority for Systick Interrupt */
70 SysTick->VAL = 0; /* Load the SysTick Counter Value */
71 SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
72 SysTick_CTRL_TICKINT_Msk |
73 SysTick_CTRL_ENABLE_Msk; /* Enable SysTick IRQ and SysTick Timer */
74 return (0); /* Function successful */
75 }
76
77 /**
78 * This function will initial board.
79 */
rt_hw_board_init(void)80 void rt_hw_board_init(void)
81 {
82 extern uint32_t SystemCoreClock;
83 SysTick_Config(SystemCoreClock/RT_TICK_PER_SECOND);
84
85 #ifdef RT_USING_HEAP
86 rt_system_heap_init((void*)HEAP_BEGIN, (void*)HEAP_END);
87 #endif
88
89 #ifdef RT_USING_COMPONENTS_INIT
90 rt_components_board_init();
91 #endif
92
93 #ifdef RT_USING_SERIAL
94 rt_hw_uart_init();
95 #endif
96
97 #if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE)
98 rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
99 #endif
100 }
101
102 /*@}*/
103