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標題: c8051f320單片機15個例程源碼(都是一些常用功能) [打印本頁]
作者: 無敵游    時間: 2018-7-24 19:27
標題: c8051f320單片機15個例程源碼(都是一些常用功能)
c8051單片機例程源碼


單片機源程序如下:
  1. //-----------------------------------------------------------------------------
  2. // F32x_External_Interrupts.c
  3. //-----------------------------------------------------------------------------
  4. // Copyright 2007 Silicon Laboratories, Inc.

  6. // Program Description:
  7. //
  8. // This software shows the necessary configuration to use External Interrupt 0
  9. // (/INT0) or External Interrupt 1 (/INT1) as an interrupt source.  The code
  10. // executes the initialization routines and then spins in an infinite while()
  11. // loop.  If the button on P1.6 (on the target board) is pressed, then the
  12. // edge-triggered /INT0 input on P0.0 will cause an interrupt and toggle the
  13. // LED.
  14. //
  15. // Pinout:
  16. //
  17. // P0.0 - /INT0
  18. // P0.1 - /INT1
  19. //
  20. // P2.0 - SW1 (Switch 1)
  21. // P2.1 - SW2 (Switch 2)
  22. // P2.2 - LED1
  23. // P2.3 - LED2
  24. //
  25. // How To Test:
  26. //
  27. // 1) Compile and download code to a 'F32x target board.
  28. // 2) On the target board, connect P2.0_SW and P2.1_SW signals on J3 to P0.0
  29. //    for /INT0 and P0.1 for /INT1.
  30. // 3) Press the switches.  Every time a switch is pressed, the P2.2 or P2.3
  31. //    LED should toggle.
  32. //
  33. // Target:         C8051F32x
  34. // Tool chain:     Keil C51 7.50 / Keil EVAL C51
  35. // Command Line:   None
  36. //
  37. //
  38. // Release 1.0
  39. //    -Initial Revision (TP)
  40. //    -14 JUN 2007
  41. //

  43. //-----------------------------------------------------------------------------
  44. // Include Files
  45. //-----------------------------------------------------------------------------

  47. #include <C8051F320.h>

  49. //-----------------------------------------------------------------------------
  50. // Global Constants
  51. //-----------------------------------------------------------------------------

  53. #define SYSCLK             12000000    // Clock speed in Hz

  55. sbit SW1 = P2^0;                       // Push-button switch on board
  56. sbit SW2 = P2^1;                       // Push-button switch on board
  57. sbit LED1 = P2^2;                      // Green LED
  58. sbit LED2 = P2^3;                      // Green LED

  60. //-----------------------------------------------------------------------------
  61. // Function Prototypes
  62. //-----------------------------------------------------------------------------

  64. void Oscillator_Init (void);           // Configure the system clock
  65. void Port_Init (void);                 // Configure the Crossbar and GPIO
  66. void Ext_Interrupt_Init (void);        // Configure External Interrupts (/INT0
  67.                                        // and /INT1)

  69. //-----------------------------------------------------------------------------
  70. // MAIN Routine
  71. //-----------------------------------------------------------------------------
  72. void main (void)
  73. {
  74.    PCA0MD &= ~0x40;                    // Disable Watchdog timer

  76.    Oscillator_Init();                  // Initialize the system clock
  77.    Port_Init ();                       // Initialize crossbar and GPIO
  78.    Ext_Interrupt_Init();               // Initialize External Interrupts

  80.    EA = 1;

  82.    while(1);                           // Infinite while loop waiting for
  83.                                        // an interrupt from /INT0 or /INT1
  84. }

  86. //-----------------------------------------------------------------------------
  87. // Initialization Subroutines
  88. //-----------------------------------------------------------------------------

  90. //-----------------------------------------------------------------------------
  91. // Oscillator_Init
  92. //-----------------------------------------------------------------------------
  93. //
  94. // Return Value : None
  95. // Parameters   : None
  96. //
  97. // This routine initializes the system clock to use the precision internal
  98. // oscillator as its clock source.
  99. //-----------------------------------------------------------------------------
  100. void Oscillator_Init (void)
  101. {
  102.    OSCICN = 0x83;                      // Set internal oscillator to run
  103.                                        // at its maximum frequency
  104. }

  106. //-----------------------------------------------------------------------------
  107. // Port_Init
  108. //-----------------------------------------------------------------------------
  109. //
  110. // Return Value : None
  111. // Parameters   : None
  112. //
  113. // This function configures the crossbar and GPIO ports.
  114. //
  115. // Pinout:
  116. //
  117. // P0.0 - digital        open-drain         /INT0
  118. // P0.1 - digital        open-drain         /INT1
  119. //
  120. // P2.0 - digital        open-drain         SW1 (Switch 1)
  121. // P2.1 - digital        open-drain         SW2 (Switch 2)
  122. // P2.2 - digital        push-pull         LED1
  123. // P2.3 - digital        push-pull        LED2
  124. //
  125. //-----------------------------------------------------------------------------
  126. void Port_Init (void)
  127. {
  128.    XBR1     = 0x40;                    // Enable crossbar and weak pullups

  130.    P2MDOUT  = 0x0C;                    // LED1 and LED2 are push-pull outputs
  131. }

  133. //-----------------------------------------------------------------------------
  134. // Ext_Interrupt_Init
  135. //-----------------------------------------------------------------------------
  136. //
  137. // Return Value : None
  138. // Parameters   : None
  139. //
  140. // This function configures and enables /INT0 and /INT1 (External Interrupts)
  141. // as negative edge-triggered.
  142. //
  143. //-----------------------------------------------------------------------------
  144. void Ext_Interrupt_Init (void)
  145. {
  146.    TCON = 0x05;                        // /INT 0 and /INT 1 are edge triggered

  148.    IT01CF = 0x10;                      // /INT0 active low; /INT0 on P0.0;
  149.                                        // /INT1 active low; /INT1 on P0.1

  151.    EX0 = 1;                            // Enable /INT0 interrupts
  152.    EX1 = 1;                            // Enable /INT1 interrupts
  153. }

  155. //-----------------------------------------------------------------------------
  156. // Interrupt Service Routines
  157. //-----------------------------------------------------------------------------

  159. //-----------------------------------------------------------------------------
  160. // /INT0 ISR
  161. //-----------------------------------------------------------------------------
  162. //
  163. // Whenever a negative edge appears on P0.0, LED1 is toggled.
  164. // The interrupt pending flag is automatically cleared by vectoring to the ISR
  165. //
  166. //-----------------------------------------------------------------------------
  167. ……………………

  169. …………限于本文篇幅 余下代碼請從51黑下載附件…………
復制代碼

所有資料51hei提供下載:
320-15個例程.zip (743.48 KB, 下載次數: 135)


作者: lyl_420819    時間: 2019-9-16 15:27
關于C8051F系列單片機的例程代碼可到 https://github.com下載---C8051F-master.zip



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