📄 stm32f10x_i2c.lst
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###############################################################################
# #
# 30/Jul/2008 14:37:35 #
# IAR ARM ANSI C/C++ Compiler V5.11.0.20622/W32 EVALUATION #
# Copyright 1999-2007 IAR Systems. All rights reserved. #
# #
# Cpu mode = thumb #
# Endian = little #
# Source file = E:\library\src\stm32f10x_i2c.c #
# Command line = E:\library\src\stm32f10x_i2c.c -D EMB_FLASH -lCN #
# E:\ELE\yten\pro\Debug\List\ -lb #
# E:\ELE\yten\pro\Debug\List\ -o #
# E:\ELE\yten\pro\Debug\Obj\ --no_cse --no_unroll #
# --no_inline --no_code_motion --no_tbaa --no_clustering #
# --no_scheduling --debug --endian little --cpu Cortex-M3 #
# -e --fpu None --dlib_config "C:\Program Files\IAR #
# Systems\Embedded Workbench 5.0 #
# Evaluation\ARM\INC\DLib_Config_Normal.h" -I #
# E:\ELE\yten\pro\ -I E:\ELE\yten\pro\..\LIBRARY\INC\ -I #
# "C:\Program Files\IAR Systems\Embedded Workbench 5.0 #
# Evaluation\ARM\INC\" --section .text=.XML -On #
# List file = E:\ELE\yten\pro\Debug\List\stm32f10x_i2c.lst #
# Object file = E:\ELE\yten\pro\Debug\Obj\stm32f10x_i2c.o #
# #
# #
###############################################################################
E:\library\src\stm32f10x_i2c.c
1 /******************** (C) COPYRIGHT 2007 STMicroelectronics ********************
2 * File Name : stm32f10x_i2c.c
3 * Author : MCD Application Team
4 * Version : V1.0
5 * Date : 10/08/2007
6 * Description : This file provides all the I2C firmware functions.
7 ********************************************************************************
8 * THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
9 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
10 * AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
11 * INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
12 * CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
13 * INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
14 *******************************************************************************/
15
16 /* Includes ------------------------------------------------------------------*/
17 #include "stm32f10x_i2c.h"
18 #include "stm32f10x_rcc.h"
19
20 /* Private typedef -----------------------------------------------------------*/
21 /* Private define ------------------------------------------------------------*/
22 /* I2C SPE mask */
23 #define CR1_PE_Set ((u16)0x0001)
24 #define CR1_PE_Reset ((u16)0xFFFE)
25
26 /* I2C DMAEN mask */
27 #define CR2_DMAEN_Set ((u16)0x0800)
28 #define CR2_DMAEN_Reset ((u16)0xF7FF)
29
30 /* I2C LAST mask */
31 #define CR2_LAST_Set ((u16)0x1000)
32 #define CR2_LAST_Reset ((u16)0xEFFF)
33
34 /* I2C START mask */
35 #define CR1_START_Set ((u16)0x0100)
36 #define CR1_START_Reset ((u16)0xFEFF)
37
38 /* I2C STOP mask */
39 #define CR1_STOP_Set ((u16)0x0200)
40 #define CR1_STOP_Reset ((u16)0xFDFF)
41
42 /* I2C ACK mask */
43 #define CR1_ACK_Set ((u16)0x0400)
44 #define CR1_ACK_Reset ((u16)0xFBFF)
45
46 /* I2C ENGC mask */
47 #define CR1_ENGC_Set ((u16)0x0040)
48 #define CR1_ENGC_Reset ((u16)0xFFBF)
49
50 /* I2C ADD0 mask */
51 #define OAR1_ADD0_Set ((u16)0x0001)
52 #define OAR1_ADD0_Reset ((u16)0xFFFE)
53
54 /* I2C SWRST mask */
55 #define CR1_SWRST_Set ((u16)0x8000)
56 #define CR1_SWRST_Reset ((u16)0x7FFF)
57
58 /* I2C PEC mask */
59 #define CR1_PEC_Set ((u16)0x1000)
60 #define CR1_PEC_Reset ((u16)0xEFFF)
61
62 /* I2C ENPEC mask */
63 #define CR1_ENPEC_Set ((u16)0x0020)
64 #define CR1_ENPEC_Reset ((u16)0xFFDF)
65
66 /* I2C ENARP mask */
67 #define CR1_ENARP_Set ((u16)0x0010)
68 #define CR1_ENARP_Reset ((u16)0xFFEF)
69
70 /* I2C NOSTRETCH mask */
71 #define CR1_NOSTRETCH_Set ((u16)0x0080)
72 #define CR1_NOSTRETCH_Reset ((u16)0xFF7F)
73
74 /* I2C ENDUAL mask */
75 #define OAR2_ENDUAL_Set ((u16)0x0001)
76 #define OAR2_ENDUAL_Reset ((u16)0xFFFE)
77
78 /* I2C F/S mask */
79 #define CCR_FS_Set ((u16)0x8000)
80
81 /* I2C ADD2 mask */
82 #define OAR2_ADD2_Reset ((u16)0xFF01)
83
84 /* I2C FREQ mask */
85 #define CR2_FREQ_Reset ((u16)0xFFC0)
86
87 /* I2C CCR mask */
88 #define CCR_CCR_Set ((u16)0x0FFF)
89
90 /* I2C FLAG mask */
91 #define I2C_FLAG_Mask ((u32)0x00FFFFFF)
92
93 /* I2C registers Masks */
94 #define CR1_CLEAR_Mask ((u16)0xFBF5)
95
96 /* Private macro -------------------------------------------------------------*/
97 /* Private variables ---------------------------------------------------------*/
98 /* Private function prototypes -----------------------------------------------*/
99 /* Private functions ---------------------------------------------------------*/
100
101 /*******************************************************************************
102 * Function Name : I2C_DeInit
103 * Description : Deinitializes the I2Cx peripheral registers to their default
104 * reset values.
105 * Input : - I2Cx: where x can be 1 or 2 to select the I2C peripheral.
106 * Output : None
107 * Return : None
108 *******************************************************************************/
\ In section .XML, align 4, keep-with-next
109 void I2C_DeInit(I2C_TypeDef* I2Cx)
110 {
\ I2C_DeInit:
\ 00000000 10B5 PUSH {R4,LR}
\ 00000002 0400 MOVS R4,R0
111 switch (*(u32*)&I2Cx)
\ 00000004 2000 MOVS R0,R4
\ 00000006 0F49 LDR.N R1,??I2C_DeInit_0 ;; 0x40005400
\ 00000008 401A SUBS R0,R0,R1
\ 0000000A 04D0 BEQ.N ??I2C_DeInit_1
\ 0000000C 5FF48061 MOVS R1,#+1024
\ 00000010 401A SUBS R0,R0,R1
\ 00000012 0BD0 BEQ.N ??I2C_DeInit_2
\ 00000014 14E0 B.N ??I2C_DeInit_3
112 {
113 case I2C1_BASE:
114 /* Enable I2C1 reset state */
115 RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C1, ENABLE);
\ ??I2C_DeInit_1:
\ 00000016 0121 MOVS R1,#+1
\ 00000018 5FF40010 MOVS R0,#+2097152
\ 0000001C ........ BL RCC_APB1PeriphResetCmd
116 /* Release I2C1 from reset state */
117 RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C1, DISABLE);
\ 00000020 0021 MOVS R1,#+0
\ 00000022 5FF40010 MOVS R0,#+2097152
\ 00000026 ........ BL RCC_APB1PeriphResetCmd
\ 0000002A 09E0 B.N ??I2C_DeInit_3
118 break;
119
120 case I2C2_BASE:
121 /* Enable I2C2 reset state */
122 RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C2, ENABLE);
\ ??I2C_DeInit_2:
\ 0000002C 0121 MOVS R1,#+1
\ 0000002E 5FF48000 MOVS R0,#+4194304
\ 00000032 ........ BL RCC_APB1PeriphResetCmd
123 /* Release I2C2 from reset state */
124 RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C2, DISABLE);
\ 00000036 0021 MOVS R1,#+0
\ 00000038 5FF48000 MOVS R0,#+4194304
\ 0000003C ........ BL RCC_APB1PeriphResetCmd
125 break;
126
127 default:
128 break;
129 }
130 }
\ ??I2C_DeInit_3:
\ 00000040 10BD POP {R4,PC} ;; return
\ 00000042 00BF Nop
\ ??I2C_DeInit_0:
\ 00000044 00540040 DC32 0x40005400
131
132 /*******************************************************************************
133 * Function Name : I2C_Init
134 * Description : Initializes the I2Cx peripheral according to the specified
135 * parameters in the I2C_InitStruct.
136 * Input : - I2Cx: where x can be 1 or 2 to select the I2C peripheral.
137 * - I2C_InitStruct: pointer to a I2C_InitTypeDef structure that
138 * contains the configuration information for the specified
139 * I2C peripheral.
140 * Output : None
141 * Return : None
142 ******************************************************************************/
\ In section .XML, align 4, keep-with-next
143 void I2C_Init(I2C_TypeDef* I2Cx, I2C_InitTypeDef* I2C_InitStruct)
144 {
\ I2C_Init:
\ 00000000 F0B5 PUSH {R4-R7,LR}
\ 00000002 87B0 SUB SP,SP,#+28
\ 00000004 0400 MOVS R4,R0
\ 00000006 0D00 MOVS R5,R1
145 u16 tmpreg = 0, freqrange = 0;
\ 00000008 0020 MOVS R0,#+0
\ 0000000A 0700 MOVS R7,R0
\ 0000000C 0020 MOVS R0,#+0
\ 0000000E ADF80400 STRH R0,[SP, #+4]
146 u16 result = 0x04;
\ 00000012 0420 MOVS R0,#+4
\ 00000014 0600 MOVS R6,R0
147 u32 pclk1clock = 12000000;
\ 00000016 3848 LDR.N R0,??I2C_Init_0 ;; 0xb71b00
\ 00000018 0090 STR R0,[SP, #+0]
148 RCC_ClocksTypeDef RCC_Clocks;
149
150 /* Check the parameters */
151 assert_param(IS_I2C_MODE(I2C_InitStruct->I2C_Mode));
152 assert_param(IS_I2C_DUTY_CYCLE(I2C_InitStruct->I2C_DutyCycle));
153 assert_param(IS_I2C_OWN_ADDRESS1(I2C_InitStruct->I2C_OwnAddress1));
154 assert_param(IS_I2C_ACK_STATE(I2C_InitStruct->I2C_Ack));
155 assert_param(IS_I2C_ACKNOWLEDGE_ADDRESS(I2C_InitStruct->I2C_AcknowledgedAddress));
156 assert_param(IS_I2C_CLOCK_SPEED(I2C_InitStruct->I2C_ClockSpeed));
157
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