火哥那个stm32的pwm输出为什么设置为静态函数啊

thy110

[code=c]

[/code]

1. /*
   
2. * º¯ÊýÃû£ºTIM3_Mode_Config
   
3. * ÃèÊö  £ºÅäÖÃTIM3Êä³öµÄPWMÐźŵÄģʽ£¬ÈçÖÜÆÚ¡¢¼«ÐÔ¡¢Õ¼¿Õ±È
   
4. * ÊäÈë  £ºÎÞ
   
5. * Êä³ö  £ºÎÞ
   
6. * µ÷Óà £ºÄÚ²¿µ÷ÓÃ
   
7. */
   
8. static void TIM3_Mode_Config(void)
   
9. {
   
10.   TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
    
11.   TIM_OCInitTypeDef  TIM_OCInitStructure;
    
12. 
    
13.   /* PWMÐźŵçƽÌø±äÖµ */
    
14.   u16 CCR1_Val = 500;        
    
15.   u16 CCR2_Val = 375;
    
16.   u16 CCR3_Val = 250;
    
17.   u16 CCR4_Val = 125;
    
18. 
    
19. /* -----------------------------------------------------------------------
    
20.     TIM3 Configuration: generate 4 PWM signals with 4 different duty cycles:
    
21.     TIM3CLK = 72 MHz, Prescaler = 0x0, TIM3 counter clock = 72 MHz
    
22.     TIM3 ARR Register = 999 => TIM3 Frequency = TIM3 counter clock/(ARR + 1)
    
23.     TIM3 Frequency = 72 KHz.
    
24.     TIM3 Channel1 duty cycle = (TIM3_CCR1/ TIM3_ARR)* 100 = 50%
    
25.     TIM3 Channel2 duty cycle = (TIM3_CCR2/ TIM3_ARR)* 100 = 37.5%
    
26.     TIM3 Channel3 duty cycle = (TIM3_CCR3/ TIM3_ARR)* 100 = 25%
    
27.     TIM3 Channel4 duty cycle = (TIM3_CCR4/ TIM3_ARR)* 100 = 12.5%
    
28.   ----------------------------------------------------------------------- */
    
29. 
    
30.   /* Time base configuration */     
    
31.   TIM_TimeBaseStructure.TIM_Period = 999;       //µ±¶¨Ê±Æ÷´Ó0¼ÆÊýµ½999£¬¼´Îª1000´Î£¬ÎªÒ»¸ö¶¨Ê±ÖÜÆÚ
    
32.   TIM_TimeBaseStructure.TIM_Prescaler = 0;      //ÉèÖÃÔ¤·ÖƵ£º²»Ô¤·ÖƵ£¬¼´Îª72MHz
    
33.   TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1 ;  //ÉèÖÃʱÖÓ·ÖƵϵÊý£º²»·ÖƵ
    
34.   TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  //ÏòÉϼÆÊýģʽ
    
35. 
    
36.   TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
    
37. 
    
38.   /* PWM1 Mode configuration: Channel1 */
    
39.   TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;      //ÅäÖÃΪPWMģʽ1
    
40.   TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;  
    
41.   TIM_OCInitStructure.TIM_Pulse = CCR1_Val;     //ÉèÖÃÌø±äÖµ£¬µ±¼ÆÊýÆ÷¼ÆÊýµ½Õâ¸öֵʱ£¬µçƽ·¢ÉúÌø±ä
    
42.   TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;  //µ±¶¨Ê±Æ÷¼ÆÊýֵСÓÚCCR1_ValʱΪ¸ßµçƽ
    
43. 
    
44.   TIM_OC1Init(TIM3, &TIM_OCInitStructure);   //ʹÄÜͨµÀ1
    
45. 
    
46.   TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Enable);
    
47. 
    
48.   /* PWM1 Mode configuration: Channel2 */
    
49.   TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
    
50.   TIM_OCInitStructure.TIM_Pulse = CCR2_Val;    //ÉèÖÃͨµÀ2µÄµçƽÌø±äÖµ£¬Êä³öÁíÍâÒ»¸öÕ¼¿Õ±ÈµÄPWM
    
51. 
    
52.   TIM_OC2Init(TIM3, &TIM_OCInitStructure);    //ʹÄÜͨµÀ2
    
53. 
    
54.   TIM_OC2PreloadConfig(TIM3, TIM_OCPreload_Enable);
    
55. 
    
56.   /* PWM1 Mode configuration: Channel3 */
    
57.   TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
    
58.   TIM_OCInitStructure.TIM_Pulse = CCR3_Val;  //ÉèÖÃͨµÀ3µÄµçƽÌø±äÖµ£¬Êä³öÁíÍâÒ»¸öÕ¼¿Õ±ÈµÄPWM
    
59. 
    
60.   TIM_OC3Init(TIM3, &TIM_OCInitStructure);   //ʹÄÜͨµÀ3
    
61. 
    
62.   TIM_OC3PreloadConfig(TIM3, TIM_OCPreload_Enable);
    
63. 
    
64.   /* PWM1 Mode configuration: Channel4 */
    
65.   TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
    
66.   TIM_OCInitStructure.TIM_Pulse = CCR4_Val;  //ÉèÖÃͨµÀ4µÄµçƽÌø±äÖµ£¬Êä³öÁíÍâÒ»¸öÕ¼¿Õ±ÈµÄPWM
    
67. 
    
68.   TIM_OC4Init(TIM3, &TIM_OCInitStructure);  //ʹÄÜͨµÀ4
    
69. 
    
70.   TIM_OC4PreloadConfig(TIM3, TIM_OCPreload_Enable);
    
71. 
    
72.   TIM_ARRPreloadConfig(TIM3, ENABLE);       // ʹÄÜTIM3ÖØÔؼĴæÆ÷ARR
    
73. 
    
74.   /* TIM3 enable counter */
    
75.   TIM_Cmd(TIM3, ENABLE);                   //ʹÄܶ¨Ê±Æ÷3  
    
76. }

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羊舌悦

这是什么代码。。。。

一般来说，没有被外部文件调用的函数都可以设置成静态函数，但不设置成静态函数也没问题

thy110

羊舌悦 发表于 2014-7-2 23:00
这是什么代码。。。。

一般来说，没有被外部文件调用的函数都可以设置成静态函数，但不设置成静态函数也 ...

我想在主函数里条用这个pwm函数，不能设置成静态函数吧