1 /*
2 * Copyright (c) 2006-2023, 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 DMA_Init(DMA0);
56 DMA_Init(DMA1);
57
58 /* NVIC Configuration */
59 #define NVIC_VTOR_MASK 0x3FFFFF80
60 #ifdef VECT_TAB_RAM
61 /* Set the Vector Table base location at 0x10000000 */
62 SCB->VTOR = (0x10000000 & NVIC_VTOR_MASK);
63 #else /* VECT_TAB_FLASH */
64
65 #ifdef PKG_USING_TFM
66 /* Set the Vector Table base location at 0x00020000 when RTT with TF-M*/
67 SCB->VTOR = (0x00020000 & NVIC_VTOR_MASK);
68 #else
69 /* Set the Vector Table base location at 0x00000000 */
70 SCB->VTOR = (0x00000000 & NVIC_VTOR_MASK);
71 #endif
72 #endif
73
74 #ifndef PKG_USING_TFM
75 /* This init has finished in secure side of TF-M */
76 BOARD_BootClockPLL150M();
77 #endif
78 //BOARD_BootClockFROHF96M();
79
80 SysTick_Config(SystemCoreClock / RT_TICK_PER_SECOND);
81 /* set pend exception priority */
82 NVIC_SetPriority(PendSV_IRQn, (1 << __NVIC_PRIO_BITS) - 1);
83
84 /*init uart device*/
85 rt_hw_uart_init();
86
87 #if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE)
88 rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
89 #endif
90
91 #ifdef RT_USING_COMPONENTS_INIT
92 /* initialization board with RT-Thread Components */
93 rt_components_board_init();
94 #endif
95
96 #ifdef RT_USING_HEAP
97 rt_kprintf("sram heap, begin: 0x%p, end: 0x%p\n", HEAP_BEGIN, HEAP_END);
98 rt_system_heap_init((void *)HEAP_BEGIN, (void *)HEAP_END);
99 #endif
100 }
101
102 /**
103 * This function will called when memory fault.
104 */
MemManage_Handler(void)105 void MemManage_Handler(void)
106 {
107 extern void HardFault_Handler(void);
108
109 rt_kprintf("Memory Fault!\n");
110 HardFault_Handler();
111 }
112
rt_hw_us_delay(rt_uint32_t us)113 void rt_hw_us_delay(rt_uint32_t us)
114 {
115 rt_uint32_t ticks;
116 rt_uint32_t told, tnow, tcnt = 0;
117 rt_uint32_t reload = SysTick->LOAD;
118
119 ticks = us * reload / (1000000 / RT_TICK_PER_SECOND);
120 told = SysTick->VAL;
121 while (1)
122 {
123 tnow = SysTick->VAL;
124 if (tnow != told)
125 {
126 if (tnow < told)
127 {
128 tcnt += told - tnow;
129 }
130 else
131 {
132 tcnt += reload - tnow + told;
133 }
134 told = tnow;
135 if (tcnt >= ticks)
136 {
137 break;
138 }
139 }
140 }
141 }
142