1 /******************************************************************************
2 * @file startup_ARMCM0.c
3 * @brief CMSIS-Core(M) Device Startup File for a Cortex-M0 Device
4 * @version V2.0.2
5 * @date 15. November 2019
6 ******************************************************************************/
7 /*
8 * Copyright (c) 2009-2019 Arm Limited. All rights reserved.
9 *
10 * SPDX-License-Identifier: Apache-2.0
11 *
12 * Licensed under the Apache License, Version 2.0 (the License); you may
13 * not use this file except in compliance with the License.
14 * You may obtain a copy of the License at
15 *
16 * www.apache.org/licenses/LICENSE-2.0
17 *
18 * Unless required by applicable law or agreed to in writing, software
19 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
20 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
21 * See the License for the specific language governing permissions and
22 * limitations under the License.
23 */
24
25 #include "ARMCM0.h"
26
27 /*----------------------------------------------------------------------------
28 External References
29 *----------------------------------------------------------------------------*/
30 extern uint32_t __INITIAL_SP;
31
32 extern __NO_RETURN void __PROGRAM_START(void);
33
34 /*----------------------------------------------------------------------------
35 Internal References
36 *----------------------------------------------------------------------------*/
37 void __NO_RETURN Default_Handler(void);
38 void __NO_RETURN Reset_Handler (void);
39
40 /*----------------------------------------------------------------------------
41 Exception / Interrupt Handler
42 *----------------------------------------------------------------------------*/
43 /* Exceptions */
44 void NMI_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
45 void HardFault_Handler (void) __attribute__ ((weak));
46 void SVC_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
47 void PendSV_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
48 void SysTick_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
49
50 void Interrupt0_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
51 void Interrupt1_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
52 void Interrupt2_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
53 void Interrupt3_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
54 void Interrupt4_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
55 void Interrupt5_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
56 void Interrupt6_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
57 void Interrupt7_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
58 void Interrupt8_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
59 void Interrupt9_Handler (void) __attribute__ ((weak, alias("Default_Handler")));
60
61
62 /*----------------------------------------------------------------------------
63 Exception / Interrupt Vector table
64 *----------------------------------------------------------------------------*/
65
66 #if defined ( __GNUC__ )
67 #pragma GCC diagnostic push
68 #pragma GCC diagnostic ignored "-Wpedantic"
69 #endif
70
71 extern const VECTOR_TABLE_Type __VECTOR_TABLE[48];
72 const VECTOR_TABLE_Type __VECTOR_TABLE[48] __VECTOR_TABLE_ATTRIBUTE = {
73 (VECTOR_TABLE_Type)(&__INITIAL_SP), /* Initial Stack Pointer */
74 Reset_Handler, /* Reset Handler */
75 NMI_Handler, /* -14 NMI Handler */
76 HardFault_Handler, /* -13 Hard Fault Handler */
77 0, /* Reserved */
78 0, /* Reserved */
79 0, /* Reserved */
80 0, /* Reserved */
81 0, /* Reserved */
82 0, /* Reserved */
83 0, /* Reserved */
84 SVC_Handler, /* -5 SVCall Handler */
85 0, /* Reserved */
86 0, /* Reserved */
87 PendSV_Handler, /* -2 PendSV Handler */
88 SysTick_Handler, /* -1 SysTick Handler */
89
90 /* Interrupts */
91 Interrupt0_Handler, /* 0 Interrupt 0 */
92 Interrupt1_Handler, /* 1 Interrupt 1 */
93 Interrupt2_Handler, /* 2 Interrupt 2 */
94 Interrupt3_Handler, /* 3 Interrupt 3 */
95 Interrupt4_Handler, /* 4 Interrupt 4 */
96 Interrupt5_Handler, /* 5 Interrupt 5 */
97 Interrupt6_Handler, /* 6 Interrupt 6 */
98 Interrupt7_Handler, /* 7 Interrupt 7 */
99 Interrupt8_Handler, /* 8 Interrupt 8 */
100 Interrupt9_Handler /* 9 Interrupt 9 */
101 /* Interrupts 10..31 are left out */
102 };
103
104 #if defined ( __GNUC__ )
105 #pragma GCC diagnostic pop
106 #endif
107
108 /*----------------------------------------------------------------------------
109 Reset Handler called on controller reset
110 *----------------------------------------------------------------------------*/
Reset_Handler(void)111 __NO_RETURN void Reset_Handler(void)
112 {
113 SystemInit(); /* CMSIS System Initialization */
114 __PROGRAM_START(); /* Enter PreMain (C library entry point) */
115 }
116
117 /*----------------------------------------------------------------------------
118 Hard Fault Handler
119 *----------------------------------------------------------------------------*/
HardFault_Handler(void)120 void HardFault_Handler(void)
121 {
122 while(1);
123 }
124
125 /*----------------------------------------------------------------------------
126 Default Handler for Exceptions / Interrupts
127 *----------------------------------------------------------------------------*/
Default_Handler(void)128 void Default_Handler(void)
129 {
130 while(1);
131 }
132
