📄 yt_temep.lst
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###############################################################################
# #
# 04/Dec/2008 16:07:56 #
# 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:\ELE\yten\pro\app\yt_TemEp.c #
# Command line = E:\ELE\yten\pro\app\yt_TemEp.c -D EMB_FLASH -lcN #
# E:\ELE\yten\pro\Release\List\ -o #
# E:\ELE\yten\pro\Release\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\" -On #
# List file = E:\ELE\yten\pro\Release\List\yt_TemEp.lst #
# Object file = E:\ELE\yten\pro\Release\Obj\yt_TemEp.o #
# #
# #
###############################################################################
E:\ELE\yten\pro\app\yt_TemEp.c
1 #include"includes.h"
2 #include"ytep.h"
3 #include"ytepfunction.h"
4 #define yt_TemEp_file
5
6
7 u8 FM_TAB[]={0,0,0,0,55,3,10,10,65,1,
8 1,1,1,1,0,0,0,0,0,0,0,146};
9 ///////////////////////////////////
10 void GPIO_InOut(GPIO_TypeDef* GPIOx,Int16U GPIO_Bit,Int8U GPIO_Speed_value,Int16U GPIO_InOut)
11 {
12 GPIO_InitTypeDef GPIO_InitStructure;
13 GPIO_InitStructure.GPIO_Pin =GPIO_Bit;
14 GPIO_InitStructure.GPIO_Speed = (GPIOSpeed_TypeDef)GPIO_Speed_value;
15 GPIO_InitStructure.GPIO_Mode=(GPIOMode_TypeDef)GPIO_InOut; //GPIO_Mode_Out_PP;
16 GPIO_Init(GPIOx, &GPIO_InitStructure); //setion output
17 }
18
19 ////////////////////////////////////////////////
20 void START_SHT(Tem *IO_Tem)
21 {
22 GPIO_InOut(IO_Tem->IOD,1<<IO_Tem->IO_D,1,GPIO_Mode_Out_PP);//IO_I2CD,GPIO_Pin_I2CD,1,GPIO_Mode_Out_PP
23 GPIO_InOut(IO_Tem->IOC,1<<IO_Tem->IO_C,1,GPIO_Mode_Out_PP);
24
25 Set_bit((IO_Tem->IOD)->ODR,IO_Tem->IO_D);
26 delay(20);
27 Set_bit((IO_Tem->IOC)->ODR,IO_Tem->IO_C);
28 delay(20);
29 Clr_bit((IO_Tem->IOD)->ODR,IO_Tem->IO_D);
30 delay(20);
31 Clr_bit((IO_Tem->IOC)->ODR,IO_Tem->IO_C);
32 delay(20);
33 Set_bit((IO_Tem->IOC)->ODR,IO_Tem->IO_C);
34 delay(20);
35 Set_bit((IO_Tem->IOD)->ODR,IO_Tem->IO_D);
36 delay(20);
37 Clr_bit((IO_Tem->IOC)->ODR,IO_Tem->IO_C);
38 delay(20);
39 }
40 Int8U SHTA_ack(Tem *IO_Tem)
41 {
42 Int8U z=0;
43 GPIO_InOut(IO_Tem->IOD,1<<IO_Tem->IO_D,0,GPIO_Mode_IN_FLOATING);
44 delay(20);
45 Set_bit((IO_Tem->IOC)->ODR,IO_Tem->IO_C);
46 delay(20);
47 z=GPIO_ReadInputDataBit(IO_Tem->IOD,1<<IO_Tem->IO_D);
48 Clr_bit((IO_Tem->IOC)->ODR,IO_Tem->IO_C);
49 GPIO_InOut(IO_Tem->IOD,1<<IO_Tem->IO_D,1,GPIO_Mode_Out_PP);
50 Set_bit((IO_Tem->IOD)->ODR,IO_Tem->IO_D);
51 return z;
52 }
53 ////////////////////////////////
54 Int8U Write_SHT(const Int8U data,Tem *IO_Tem)
55 {
56 Int8U x,y,x1;
57 y=data;
58 for(x1=0;x1<3;x1++)
59 {
60 for(x=0;x<8;x++)
61 {
62 if(y&0x80)Set_bit((IO_Tem->IOD)->ODR,IO_Tem->IO_D);
63 else Clr_bit((IO_Tem->IOD)->ODR,IO_Tem->IO_D);
64 y<<=1;
65 Set_bit((IO_Tem->IOC)->ODR,IO_Tem->IO_C);
66 delay(20);
67 Clr_bit((IO_Tem->IOC)->ODR,IO_Tem->IO_C);
68 delay(20);
69 }
70 y=SHTA_ack(IO_Tem);
71 if(y==0)return 0;
72 y=data;
73 START_SHT(IO_Tem);
74 }
75 return 1;
76 }
77 Int8U Read_SHT(Tem *IO_Tem,Int8U xyz)//xyz=0 is temperature,xyz=1 is humidity
78 {
79 Int8U x,x1,y;
80 Int32U x1_data=0;
81
82 for(x1=0;x1<3;x1++)
83 {
84 GPIO_InOut(IO_Tem->IOD,1<<IO_Tem->IO_D,0,GPIO_Mode_IN_FLOATING);
85 for(x=0;x<8;x++)
86 {
87 x1_data<<=1;
88 delay(20);
89 Set_bit((IO_Tem->IOC)->ODR,IO_Tem->IO_C);
90 delay(20);
91 y=GPIO_ReadInputDataBit(IO_Tem->IOD,1<<IO_Tem->IO_D);
92 if(y!=0)x1_data|=1;
93 Clr_bit((IO_Tem->IOC)->ODR,IO_Tem->IO_C);
94 }
95 GPIO_InOut(IO_Tem->IOD,1<<IO_Tem->IO_D,1,GPIO_Mode_Out_PP);
96 Clr_bit((IO_Tem->IOD)->ODR,IO_Tem->IO_D);
97 delay(20);
98 Set_bit((IO_Tem->IOC)->ODR,IO_Tem->IO_C);
99 delay(20);
100 Clr_bit((IO_Tem->IOC)->ODR,IO_Tem->IO_C);
101 delay(20);
102 }
103 GPIO_InOut(IO_Tem->IOD,1<<IO_Tem->IO_D,1,GPIO_Mode_Out_PP);
104 delay(20);
105 Set_bit((IO_Tem->IOD)->ODR,IO_Tem->IO_D);
106 delay(20);
107 Set_bit((IO_Tem->IOC)->ODR,IO_Tem->IO_C);
108 delay(20);
109 Clr_bit((IO_Tem->IOC)->ODR,IO_Tem->IO_C);
110 x=0x80; //如是8位x=0x80,12位则x=0
111 if(xyz==0)x=crc8(3,x); //Tempertion
112 else x=crc8(5,x); //RH
113 y=(Int8U)(x1_data>>16);
114 x=crc8(y,x);//第一字节，命令字节
115 y=(Int8U)(x1_data>>8);//
116 x=crc8(y,x);
117 x=swapcrc(x);
118 y=(Int8U)(x1_data&0xff);
119 if(x==y)
120 {
121 x1_data=x1_data>>8;
122 if(xyz==0)IO_Tem->Temperature=account_Temp((Int16U)x1_data,0);
123 else IO_Tem->Humidity=account_RH((Int16U)x1_data,0);
124 return 0;
125 }else
126 return 0XFF;
127 }
128 /////////////////////////////////
129 //-----------------------------------------------
130 // crc caculate
131 //-----------------------------------------------
132 Int8U crc8(Int8U byte,Int8U crc8)
133 {
134 Int8U i;
135 volatile Int8U temp;
136 crc8^=byte;
137 for(i=0;i<8;i++)
138 {
139 temp=crc8;
140 crc8<<=1;
141 if((temp&0x80)!=0)
142 crc8^=0x31;
143 }
144 return crc8;
145 }
146 //-----------------------------------------------
147 // swap crc byte
148 //-----------------------------------------------
149 Int8U swapcrc(Int8U byte)
150 {
151 Int8U i;
152 Int8U temp=0;
153
154 for (i=0x80;i>0;i/=2)
155 {
156 if((byte&i)!=0)
157 temp|=0x80;
158 if(i==0x01)
159 break;
160 temp>>=1;
161 temp&=0x7f;
162 }
163 return temp;
164 }
165 ////////////////////////////////xb is 12bit or 8bit
166 Int8U account_Temp(Int16U xa,Int8U xb)
167 {
168 if(xb==1) //14bit
169 xa&=0x3fff;
170 else
171 xa&=0x0fff;
172 if(xb==0)
173 xa<<=2;
174 xa=xa/100; //t=d1+d2*0.04 d1=-40
175 xa&=0x00ff;
176 return xa;
177 }
178 ////////////////////////////////
179 Int8U account_RH(Int16U xa,Int8U xb)
180 {
181 if(xb==1)
182 xa>>=4;
183 xa&=0x00ff; //8bit
184 if(xa<=107)
185 {
186 xa=xa*143;
187 if(xa<512)return 2;
188 xa=xa-512;
189 }
190 else
191 {
192 xa=xa*111;
193 xa+=2893;
194 }
195 xa>>=8;
196 xa&=0x00ff;
197 return xa;
198 }
199 ///////////////////////////////////////////////
200 void Test_error(const Int8U x,Tem *IO_Tem)
201 {
202 if(x==0)IO_Tem->counter_error=0,IO_Tem->Error=0;
203 else
204 {
205 if(++(IO_Tem->counter_error)>=10)
206 IO_Tem->Error=TRUE;
207 }
208 }
209 ///////////////////////////////////////////////
210 void read_SHT_data()
211 {
212 volatile Int8U a_sht;
213 static Int8U Timecounter;
214 if(++Timecounter>=20)Timecounter=0;
215 switch(Timecounter)
216 {
217 case 0:
218 a_sht=Read_SHT(&TemRHA,1);
219 Test_error(a_sht,&TemRHA);
220 START_SHT(&TemRHA);
221 a_sht=Write_SHT(6,&TemRHA);
222 a_sht=Write_SHT(1,&TemRHA);
223 a_sht=Write_SHT(3,&TemRHA);
224 Test_error(a_sht,&TemRHA);
225 break;
226 case 1:
227 a_sht=Read_SHT(&TemRHA,0);
228 Test_error(a_sht,&TemRHA);
229 break;
230 case 19:
231 START_SHT(&TemRHA);
232 a_sht=Write_SHT(5,&TemRHA);
233 Test_error(a_sht,&TemRHA);
234 break;
235
236
237 }
238 if(TemRHA.Error==0)
239 {
240 A_RHbuf=TemRHA.Humidity;
241 //A_Tembuf=TemRHA.Temperature;
242 A_Tembuf=TemRHA.Temperature;
243 //if(TemRHA.Temperature>=40)
244 //A_Tembuf=TemRHA.Temperature-40;
245 //else A_Tembuf=0;
246 }
247 else A_Tembuf=TemRHA.Temperature=A_RHbuf=TemRHA.Humidity=0xff;
248 }
249 /////////////////////////////////////////////////////////
250
251
252 void sta( )/*启动I2C总线*/
253 {
254 Set_bit(IO_I2CD->ODR,I2CD);//SDA_S;
255 Set_bit(IO_I2CC->ODR,I2CC);//SCL_S ;
256 delay(20);
257 Clr_bit(IO_I2CD->ODR,I2CD);//SDA_C;
258 delay(20);
259 Clr_bit(IO_I2CC->ODR,I2CC);//SCL_C;
260 delay(20);
261 }
262
263 void stop( ) /*stop i2c*/
264 {
265 Clr_bit(IO_I2CD->ODR,I2CD);//SDA_C;
266 Set_bit(IO_I2CC->ODR,I2CC);//SCL_S;
267 delay(20);
268 Set_bit(IO_I2CD->ODR,I2CD);//SDA_S;
269 delay(20);
270 Clr_bit(IO_I2CC->ODR,I2CC);//SCL_C;
271 delay(20);
272 }
273
274 void mack()/*发送应答位*/
275 {
276 Clr_bit(IO_I2CD->ODR,I2CD);//SDA_C;
277 Set_bit(IO_I2CC->ODR,I2CC);//SCL_S;
278 delay(20);
279 Clr_bit(IO_I2CC->ODR,I2CC);//SCL_C;
280 Set_bit(IO_I2CD->ODR,I2CD);//SDA_S;
281 delay(20);
282 }
283
284 void mnack()/*发送非应答位*/
285 {
286 Set_bit(IO_I2CD->ODR,I2CD);//SDA_D;
287 Set_bit(IO_I2CC->ODR,I2CC);//SCL_S;
288 delay(20);
289 Clr_bit(IO_I2CC->ODR,I2CC);//SCL_C;
290 Clr_bit(IO_I2CD->ODR,I2CD);//SDA_C;
291 delay(20);
292 }
293
294 Int8U cack()/*应答位检查*/
295 {
296 Int8U c;
297 GPIO_InOut(IO_I2CD,GPIO_Pin_I2CD,0,GPIO_Mode_IN_FLOATING);//SDA_IN;
298 delay(20);
299 Set_bit(IO_I2CC->ODR,I2CC);//SCL_S;
300 c=0;
301 delay(20);
302 if(Get_bit(IO_I2CD->IDR,I2CD)!=0) //check sda
303 c=1;
304 Clr_bit(IO_I2CC->ODR,I2CC);//SCL_C;
305 GPIO_InOut(IO_I2CD,GPIO_Pin_I2CD,1,GPIO_Mode_Out_PP);//SDA_OUT;
306 delay(20);
307 return c;
308 }
309 /*向虚拟I2C总线上发送1个数据字节*/
310 void WRBYT(Int8U z)
311 {
312 Int8U i;
313 for(i=0;i<8;i++)
314 {
315 if((z&0x80)>0)Set_bit(IO_I2CD->ODR,I2CD);//SDA_S;
316 else Clr_bit(IO_I2CD->ODR,I2CD);//SDA_C;
317 Set_bit(IO_I2CC->ODR,I2CC);//SCL_S;
318 delay(20);
319 Clr_bit(IO_I2CC->ODR,I2CC);//SCL_C;
320 z=z<<1;
321 delay(20);
322 }
323 }
324 /*从I2C总线上读取1个数据字节*/
325 Int8U RDBYT()
326 {
327 Int8U nn=0;
328 Int8U j;
329 GPIO_InOut(IO_I2CD,GPIO_Pin_I2CD,0,GPIO_Mode_IN_FLOATING);//SDA_IN;
330 for(j=0;j<8;j++)
331 {
332 Set_bit(IO_I2CC->ODR,I2CC);///SCL_S;
333 delay(20);
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