📄 stm32f10x_systick.lst
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# IAR ARM ANSI C/C++ Compiler V4.42A/W32 15/May/2008 12:06:32 #
# Copyright 1999-2005 IAR Systems. All rights reserved. #
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# Cpu mode = thumb #
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# Stack alignment = 4 #
# Source file = C:\David JIANG\ST MCU\Docs\STM32\AN_JIANG\TIM #
# Encoder\example\FWLib\src\stm32f10x_systick.c #
# Command line = "C:\David JIANG\ST MCU\Docs\STM32\AN_JIANG\TIM #
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# VECT_TAB_FLASH -lcN "C:\David JIANG\ST #
# MCU\Docs\STM32\AN_JIANG\TIM #
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# Encoder\example\project\EWARM\BOOT_FLASH\List\" -o #
# "C:\David JIANG\ST MCU\Docs\STM32\AN_JIANG\TIM #
# Encoder\example\project\EWARM\BOOT_FLASH\Obj\" -z3 #
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# Encoder\example\project\EWARM\BOOT_FLASH\List\stm32f #
# 10x_systick.lst #
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C:\David JIANG\ST MCU\Docs\STM32\AN_JIANG\TIM Encoder\example\FWLib\src\stm32f10x_systick.c
1 /******************** (C) COPYRIGHT 2007 STMicroelectronics ********************
2 * File Name : stm32f10x_systick.c
3 * Author : MCD Application Team
4 * Date First Issued : 09/29/2006
5 * Description : This file provides all the SysTick firmware functions.
6 ********************************************************************************
7 * History:
8 * 05/21/2007: V0.3
9 * 04/02/2007: V0.2
10 * 02/05/2007: V0.1
11 * 09/29/2006: V0.01
12 ********************************************************************************
13 * THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
14 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
15 * AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
16 * INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
17 * CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
18 * INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
19 *******************************************************************************/
20
21 /* Includes ------------------------------------------------------------------*/
22 #include "stm32f10x_systick.h"
23
24 /* Private typedef -----------------------------------------------------------*/
25 /* Private define ------------------------------------------------------------*/
26 /* ---------------------- SysTick registers bit mask -------------------- */
27 /* CTRL TICKINT Mask */
28 #define CTRL_TICKINT_Set ((u32)0x00000002)
29 #define CTRL_TICKINT_Reset ((u32)0xFFFFFFFD)
30
31 /* SysTick Flag Mask */
32 #define FLAG_Mask ((u8)0x1F)
33
34 /* Private macro -------------------------------------------------------------*/
35 /* Private variables ---------------------------------------------------------*/
36 /* Private function prototypes -----------------------------------------------*/
37 /* Private functions ---------------------------------------------------------*/
38
39 /*******************************************************************************
40 * Function Name : SysTick_CLKSourceConfig
41 * Description : Configures the SysTick clock source.
42 * Input : - SysTick_CLKSource: specifies the SysTick clock source.
43 * This parameter can be one of the following values:
44 * - SysTick_CLKSource_HCLK_Div8: AHB clock divided by 8
45 * selected as SysTick clock source.
46 * - SysTick_CLKSource_HCLK: AHB clock selected as
47 * SysTick clock source.
48 * Output : None
49 * Return : None
50 *******************************************************************************/
51 void SysTick_CLKSourceConfig(u32 SysTick_CLKSource)
52 {
53 /* Check the parameters */
54 assert(IS_SYSTICK_CLK_SOURCE(SysTick_CLKSource));
55
56 if (SysTick_CLKSource == SysTick_CLKSource_HCLK)
57 {
58 SysTick->CTRL |= SysTick_CLKSource_HCLK;
59 }
60 else
61 {
62 SysTick->CTRL &= SysTick_CLKSource_HCLK_Div8;
63 }
64 }
65
66 /*******************************************************************************
67 * Function Name : SysTick_SetReload
68 * Description : Sets SysTick Reload value.
69 * Input : - Reload: SysTick Reload new value.
70 * This parameter must be a number between 1 and 0xFFFFFF.
71 * Output : None
72 * Return : None
73 *******************************************************************************/
74 void SysTick_SetReload(u32 Reload)
75 {
76 /* Check the parameters */
77 assert(IS_SYSTICK_RELOAD(Reload));
78
79 SysTick->LOAD = Reload;
80 }
81
82 /*******************************************************************************
83 * Function Name : SysTick_CounterCmd
84 * Description : Enables or disables the SysTick counter.
85 * Input : - SysTick_Counter: new state of the SysTick counter.
86 * This parameter can be one of the following values:
87 * - SysTick_Counter_Disable: Disable counter
88 * - SysTick_Counter_Enable: Enable counter
89 * - SysTick_Counter_Clear: Clear counter value to 0
90 * Output : None
91 * Return : None
92 *******************************************************************************/
93 void SysTick_CounterCmd(u32 SysTick_Counter)
94 {
95 /* Check the parameters */
96 assert(IS_SYSTICK_COUNTER(SysTick_Counter));
97
98 if (SysTick_Counter == SysTick_Counter_Clear)
99 {
100 SysTick->VAL = SysTick_Counter_Clear;
101 }
102 else
103 {
104 if (SysTick_Counter == SysTick_Counter_Enable)
105 {
106 SysTick->CTRL |= SysTick_Counter_Enable;
107 }
108 else
109 {
110 SysTick->CTRL &= SysTick_Counter_Disable;
111 }
112 }
113 }
114
115 /*******************************************************************************
116 * Function Name : SysTick_ITConfig
117 * Description : Enables or disables the SysTick Interrupt.
118 * Input : - NewState: new state of the SysTick Interrupt.
119 * This parameter can be: ENABLE or DISABLE.
120 * Output : None
121 * Return : None
122 *******************************************************************************/
123 void SysTick_ITConfig(FunctionalState NewState)
124 {
125 /* Check the parameters */
126 assert(IS_FUNCTIONAL_STATE(NewState));
127
128 if (NewState != DISABLE)
129 {
130 SysTick->CTRL |= CTRL_TICKINT_Set;
131 }
132 else
133 {
134 SysTick->CTRL &= CTRL_TICKINT_Reset;
135 }
136 }
137
138 /*******************************************************************************
139 * Function Name : SysTick_GetCounter
140 * Description : Gets SysTick counter value.
141 * Input : None
142 * Output : None
143 * Return : SysTick current value
144 *******************************************************************************/
145 u32 SysTick_GetCounter(void)
146 {
147 return(SysTick->VAL);
148 }
149
150 /*******************************************************************************
151 * Function Name : SysTick_GetFlagStatus
152 * Description : Checks whether the specified SysTick flag is set or not.
153 * Input : - SysTick_FLAG: specifies the flag to check.
154 * This parameter can be one of the following values:
155 * - SysTick_FLAG_COUNT
156 * - SysTick_FLAG_SKEW
157 * - SysTick_FLAG_NOREF
158 * Output : None
159 * Return : None
160 *******************************************************************************/
161 FlagStatus SysTick_GetFlagStatus(u8 SysTick_FLAG)
162 {
163 u32 tmp = 0;
164 u32 statusreg = 0;
165 FlagStatus bitstatus = RESET;
166
167 /* Check the parameters */
168 assert(IS_SYSTICK_FLAG(SysTick_FLAG));
169
170 /* Get the SysTick register index */
171 tmp = SysTick_FLAG >> 5;
172
173 if (tmp == 1) /* The flag to check is in CTRL register */
174 {
175 statusreg = SysTick->CTRL;
176 }
177 else /* The flag to check is in CALIB register */
178 {
179 statusreg = SysTick->CALIB;
180 }
181
182 /* Get the flag position */
183 tmp = SysTick_FLAG & FLAG_Mask;
184
185 if ((statusreg & ((u32)1 << tmp)) != (u32)RESET)
186 {
187 bitstatus = SET;
188 }
189 else
190 {
191 bitstatus = RESET;
192 }
193 return bitstatus;
194 }
195
196 /******************* (C) COPYRIGHT 2007 STMicroelectronics *****END OF FILE****/
Maximum stack usage in bytes:
Function CSTACK
-------- ------
SysTick_CLKSourceConfig 8
SysTick_CounterCmd 8
SysTick_GetCounter 0
SysTick_GetFlagStatus 8
SysTick_ITConfig 8
SysTick_SetReload 8
Segment part sizes:
Function/Label Bytes
-------------- -----
SysTick_CLKSourceConfig 64
SysTick_SetReload 30
SysTick_CounterCmd 82
SysTick_ITConfig 60
SysTick_GetCounter 8
SysTick_GetFlagStatus 82
??DataTable19 4
??DataTable21 4
?<Constant "C:\\David JIANG\\ST MCU...">
92
Others 8
342 bytes in segment CODE
92 bytes in segment DATA_C
334 bytes of CODE memory (+ 8 bytes shared)
92 bytes of CONST memory
Errors: none
Warnings: none
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