1. static void ADC_Config(void)
   % S. P5 v: z! H/ l' x* I
2. {
   
3.   ADC_InitTypeDef     ADC_InitStructure;
   % i  {3 R- Z) p2 [" ?
4. 
   
5. 
   
6.   /* ADCs DeInit */  
   6 t$ F5 J, r8 u3 Q# S& m
7.   //ADC_DeInit(ADC1);
   & T! k2 A2 a2 v6 D" R/ w
8. 
   ' Y- K3 _, @8 {. V
9.   /* Initialize ADC structure */
   
10.   ADC_StructInit(&ADC_InitStructure);
    / R0 ?0 h. I9 H+ w3 }  `3 h5 a
11. 
    
12.   /* Configure the ADC1 in continuous mode with a resolution equal to 12 bits  */
    $ {0 P6 q) @+ |$ m9 h! d5 R
13.   ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
    
14.   ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
    
15.   ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
    5 U0 i& K# C! s7 z& r. e
16.   ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
    3 N7 ^) @$ L* k, ~/ x/ v4 ~$ K
17.   ADC_InitStructure.ADC_ScanDirection = ADC_ScanDirection_Upward;
    2 ^7 i- U- r& t1 B9 {" D1 }4 z
18.   ADC_Init(ADC1, &ADC_InitStructure);
    ) j5 ^! K% E* [3 {. k
19. 
    " ~& j* J- k4 N: g$ ~, F' V
20.   /* Convert the ADC1 Channel 9 with 239.5 Cycles as sampling time */  
    
21.   ADC_ChannelConfig(ADC1, ADC_Channel_9 , ADC_SampleTime_239_5Cycles);
    
22.   /* ADC Calibration */
    
23.   ADC_GetCalibrationFactor(ADC1);
    ( [2 g' ?; \+ {0 V- [
24. 
    1 L9 F2 a8 k( X; Y  ]
25.   /* ADC DMA request in circular mode */
    
26.   //ADC_DMARequestModeConfig(ADC1, ADC_DMAMode_Circular);
    
27. 
    
28.   /* Enable ADC_DMA */
    9 z2 G% G+ k3 o* o, ~
29.   //ADC_DMACmd(ADC1, ENABLE);  
    3 g% T" `" J+ v+ @2 `% k: i
30. 
    
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. 
    5 W' c4 F2 ]9 R1 j6 A
37.   /* ADC1 regular Software Start Conv */
    4 l4 m$ Y7 c& r# X6 W
38.   ADC_StartOfConversion(ADC1);
    
39. 
    4 O8 L# @9 A) d
40. }
    4 {3 b+ p1 G" A) R8 b; ?3 |
41. 
    
42. while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC ));//等待转换结束
    . e0 c+ ?( `* R  Y
43.       _adc=ADC_GetConversionValue(ADC1);

复制代码

1 E: L+ o4 K% g- W0 r8 `1 y

3 P; {/ l$ K. m- T& `. D9 O# q