1. static void ADC_Config(void)
   
2. {
   * t2 q1 k6 u' z- I, w2 k/ I
3.   ADC_InitTypeDef     ADC_InitStructure;
   
4. 
   ( }7 o! s6 e" n& p$ g
5. 
   
6.   /* ADCs DeInit */  
   7 y$ O3 X5 u; R' ]* O) U& A
7.   //ADC_DeInit(ADC1);
   / m  Q' t) t4 G% Y) d+ a
8. 
   # P% G; \: L- J2 E
9.   /* Initialize ADC structure */
   ; ?* j& k, o& ?' a
10.   ADC_StructInit(&ADC_InitStructure);
    
11. 
    
12.   /* Configure the ADC1 in continuous mode with a resolution equal to 12 bits  */
    
13.   ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
    
14.   ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
    
15.   ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
    + f7 _# F: |" \* {
16.   ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
    
17.   ADC_InitStructure.ADC_ScanDirection = ADC_ScanDirection_Upward;
    ( y4 G* h) `) h: `$ D) a4 N# F
18.   ADC_Init(ADC1, &ADC_InitStructure);
    # M4 E) w7 K- X2 U- ?( B: Y; }% J9 }: d
19. 
    & l; j4 `4 O' U4 ]" ]# j2 D0 R
20.   /* Convert the ADC1 Channel 9 with 239.5 Cycles as sampling time */  
    
21.   ADC_ChannelConfig(ADC1, ADC_Channel_9 , ADC_SampleTime_239_5Cycles);
    : B0 n( c+ ~+ ?+ B) q: E: i# W; z: l
22.   /* ADC Calibration */
    " w; e( X$ G* V' Q3 z& p
23.   ADC_GetCalibrationFactor(ADC1);
    
24. 
    " T1 K: C1 W/ p: z9 z- S% D
25.   /* ADC DMA request in circular mode */
    
26.   //ADC_DMARequestModeConfig(ADC1, ADC_DMAMode_Circular);
    
27. 
    & z1 k8 l! C3 z- I" P1 I
28.   /* Enable ADC_DMA */
    ) ?# P# p* N+ U6 a; H% n1 V
29.   //ADC_DMACmd(ADC1, ENABLE);  
    " Z! N* G* N. N3 l3 T  B! v8 M
30. 
    
31.   /* Enable the ADC peripheral */
    5 `9 ?, L3 ?' u; T/ u
32.   ADC_Cmd(ADC1, ENABLE);     
    $ n% _1 h7 x# N* e
33. 
    
34.   /* Wait the ADRDY flag */
    5 u; g6 T, s3 j7 x) d; W
35.   while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_ADRDY));
    7 n. K# u% W8 t2 S9 j. m
36. 
    
37.   /* ADC1 regular Software Start Conv */
    / f/ v' z3 r/ `8 q% ^/ [
38.   ADC_StartOfConversion(ADC1);
    : U6 _" ]: H9 u+ Z
39. 
    
40. }
    # H3 n3 ]3 |7 ^% k! g1 ~3 ~* A
41. 
    
42. while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC ));//等待转换结束
    
43.       _adc=ADC_GetConversionValue(ADC1);

复制代码

" r/ b5 p/ D* D8 x1 f
4 R! U8 u1 R! \1 u) k3 n# A( y0 Q