1 /*
2 * Copyright (c) 2006-2022, RT-Thread Development Team
3 * Copyright (c) 2019-2020, Arm Limited. All rights reserved.
4 *
5 * SPDX-License-Identifier: Apache-2.0
6 *
7 * Change Logs:
8 * Date Author Notes
9 * 2009-01-05 Bernard first implementation
10 * 2010-02-04 Magicoe ported to LPC17xx
11 * 2010-05-02 Aozima update CMSIS to 130
12 * 2017-08-02 XiaoYang porting to LPC54608 bsp
13 * 2019-08-05 Magicoe porting to LPC55S69-EVK bsp
14 * 2020-01-01 Karl Add PKG_USING_TFM support
15 */
16
17 #include <rthw.h>
18 #include <rtthread.h>
19
20 #include "board.h"
21 #include "clock_config.h"
22 #include "drv_uart.h"
23
24 /**
25 * This is the timer interrupt service routine.
26 *
27 */
SysTick_Handler(void)28 void SysTick_Handler(void)
29 {
30 /* enter interrupt */
31 rt_interrupt_enter();
32
33 rt_tick_increase();
34
35 /* leave interrupt */
36 rt_interrupt_leave();
37 }
38
39 /**
40 * This function will initial LPC55Sxx board.
41 */
rt_hw_board_init()42 void rt_hw_board_init()
43 {
44 /* Hardware Initialization */
45 BOARD_InitPins();
46
47 CLOCK_EnableClock(kCLOCK_InputMux);
48
49 CLOCK_EnableClock(kCLOCK_Gpio0);
50 CLOCK_EnableClock(kCLOCK_Gpio1);
51
52 GPIO_PortInit(GPIO, 0);
53 GPIO_PortInit(GPIO, 1);
54
55 /* NVIC Configuration */
56 #define NVIC_VTOR_MASK 0x3FFFFF80
57 #ifdef VECT_TAB_RAM
58 /* Set the Vector Table base location at 0x10000000 */
59 SCB->VTOR = (0x10000000 & NVIC_VTOR_MASK);
60 #else /* VECT_TAB_FLASH */
61
62 #ifdef PKG_USING_TFM
63 /* Set the Vector Table base location at 0x00020000 when RTT with TF-M*/
64 SCB->VTOR = (0x00020000 & NVIC_VTOR_MASK);
65 #else
66 /* Set the Vector Table base location at 0x00000000 */
67 SCB->VTOR = (0x00000000 & NVIC_VTOR_MASK);
68 #endif
69 #endif
70
71 #ifndef PKG_USING_TFM
72 /* This init has finished in secure side of TF-M */
73 BOARD_BootClockFROHF96M();
74 #endif
75 //BOARD_BootClockFROHF96M();
76
77 SysTick_Config(SystemCoreClock / RT_TICK_PER_SECOND);
78 /* set pend exception priority */
79 NVIC_SetPriority(PendSV_IRQn, (1 << __NVIC_PRIO_BITS) - 1);
80
81 /*init uart device*/
82 rt_hw_uart_init();
83
84 #if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE)
85 rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
86 #endif
87
88 #ifdef RT_USING_COMPONENTS_INIT
89 /* initialization board with RT-Thread Components */
90 rt_components_board_init();
91 #endif
92
93 #ifdef RT_USING_HEAP
94 rt_kprintf("sram heap, begin: 0x%p, end: 0x%p\n", HEAP_BEGIN, HEAP_END);
95 rt_system_heap_init((void *)HEAP_BEGIN, (void *)HEAP_END);
96 #endif
97 }
98
99 /**
100 * This function will called when memory fault.
101 */
MemManage_Handler(void)102 void MemManage_Handler(void)
103 {
104 extern void HardFault_Handler(void);
105
106 rt_kprintf("Memory Fault!\n");
107 HardFault_Handler();
108 }
109
rt_hw_us_delay(rt_uint32_t us)110 void rt_hw_us_delay(rt_uint32_t us)
111 {
112 rt_uint32_t ticks;
113 rt_uint32_t told, tnow, tcnt = 0;
114 rt_uint32_t reload = SysTick->LOAD;
115
116 ticks = us * reload / (1000000 / RT_TICK_PER_SECOND);
117 told = SysTick->VAL;
118 while (1)
119 {
120 tnow = SysTick->VAL;
121 if (tnow != told)
122 {
123 if (tnow < told)
124 {
125 tcnt += told - tnow;
126 }
127 else
128 {
129 tcnt += reload - tnow + told;
130 }
131 told = tnow;
132 if (tcnt >= ticks)
133 {
134 break;
135 }
136 }
137 }
138 }
139