1. static void ADC_Config(void)
   
2. {
   
3.   ADC_InitTypeDef     ADC_InitStructure;
   ; R; J# S+ h' _2 W3 ?, y2 y
4. 
   ) ~5 K+ Q. l, V/ E. @9 o
5. 
   * p8 J0 M$ V1 N4 Q. }, W3 _, v
6.   /* ADCs DeInit */  
   , J5 z6 z5 j( J( f, u1 B
7.   //ADC_DeInit(ADC1);
   
8. 
   
9.   /* Initialize ADC structure */
   - r( x, M. |& [) |9 U/ {/ Q1 e; g
10.   ADC_StructInit(&ADC_InitStructure);
    ; I( V0 @% [! l+ W
11. 
    
12.   /* Configure the ADC1 in continuous mode with a resolution equal to 12 bits  */
    ; k. v4 B8 Y9 C* f% b3 T
13.   ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
    % c9 m$ W% F+ {9 N
14.   ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
    3 r# c3 ?/ C7 C& C% g
15.   ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
    
16.   ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
    
17.   ADC_InitStructure.ADC_ScanDirection = ADC_ScanDirection_Upward;
    2 k4 N  d& u" ]! X( d: x2 `
18.   ADC_Init(ADC1, &ADC_InitStructure);
    ( |8 |$ g) R: c2 _$ ]9 g2 v
19. 
    4 P, d. N3 q) C! M
20.   /* Convert the ADC1 Channel 9 with 239.5 Cycles as sampling time */  
    ! m5 E, Q: d9 k& Z
21.   ADC_ChannelConfig(ADC1, ADC_Channel_9 , ADC_SampleTime_239_5Cycles);
    / a' P0 S/ ]$ n2 }& }8 p: H
22.   /* ADC Calibration */
    " `3 U6 f9 A' o, @/ g
23.   ADC_GetCalibrationFactor(ADC1);
    
24. 
    1 y5 b( U  T  x" a5 G4 C
25.   /* ADC DMA request in circular mode */
    ) T# @7 r) _- b0 w  |2 z
26.   //ADC_DMARequestModeConfig(ADC1, ADC_DMAMode_Circular);
    8 Y# d7 d9 C. C
27. 
    ' U! E# c3 f& [  {  u# E
28.   /* Enable ADC_DMA */
    
29.   //ADC_DMACmd(ADC1, ENABLE);  
    . ]# i7 u8 Q& Q" S
30. 
    8 M( p- B# {- `3 ?  T
31.   /* Enable the ADC peripheral */
    
32.   ADC_Cmd(ADC1, ENABLE);     
    
33. 
    
34.   /* Wait the ADRDY flag */
    
35.   while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_ADRDY));
    
36. 
    4 E; I1 ~0 S# `+ K6 @$ Y  ?6 k
37.   /* ADC1 regular Software Start Conv */
    + U4 D9 _9 H  b2 I
38.   ADC_StartOfConversion(ADC1);
    & x  j# b+ |) Y0 R3 _9 S
39. 
    
40. }
    , C; ~& w! I; @0 g
41. 
    7 |( ]$ v: }  r* H
42. while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC ));//等待转换结束
    
43.       _adc=ADC_GetConversionValue(ADC1);

复制代码

; A* z$ b! `6 U5 S
! G5 k0 \7 p/ ^5 {- m: p" X

% I# J8 M, D: T: B0 o/ s) I