Timer mierzenie częstotliwości (PWC)

[tomaszdko]

Ma ktoś kod jak skonfigurować timer do pomiaru częstotliwości (to chyba w trybie PWC) oraz konfigurację do pomiaru PWM .
Resztę sobie dopiszę ale trzeba mi tych konfiguracji timerów.

[tomaszdko]

Mój sposób na mierzenie długości impulsu chodzi ale jednak przydał by się w pełni sprzętowy na timerze . Ten kod używa timera ale też przerwań na pinie .

Code: [Zaznacz cały] [Rozwiń/Zwiń]

1. $REGFILE = "XM128A3UDEF.DAT"
2. $CRYSTAL = 50000000   '50MHz
3. $HWSTACK = 500
4. $SWSTACK = 500
5. $FRAMESIZE = 500
6. $LIB "XMEGA.LIB"
7. ENABLE INTERRUPTS
8. '-------------------------------------------------------------------------------------------------------------------------------------------
9. 'CONFIG OSC = ENABLED , PLLOSC = ENABLED , PLLMUL =  29
10. 'CONFIG SYSCLOCK = PLL
11. '-------------------------------------------------------------------------------------------------------------------------------------------
12. CONFIG OSC = ENABLED , EXTOSC = ENABLED , PLLOSC = ENABLED , _
13. RANGE = 9MHZ_12MHZ , STARTUP = XTAL_16KCLK , PLLSOURCE = EXTCLOCK , PLLMUL = 5 '5 X 10MHZ = 50MHZ
14. CONFIG SYSCLOCK = PLL , PRESCALEA = 1 , PRESCALEBC = 1_1
15. CONFIG PRIORITY = STATIC , VECTOR = APPLICATION , HI = ENABLED , MED = ENABLED , LO = ENABLED
16. '*******************************************************************************************************************************************
17. '*** UART-COM5 *****************************************************************************************************************************
18. '*******************************************************************************************************************************************
19. CONFIG COM5 = 115200 , MODE = ASYNCHRONEOUS , PARITY = NONE , STOPBITS = 1 , DATABITS = 8
20. OPEN "COM5:" FOR BINARY AS #5
21. CONFIG SERIALIN4 = BUFFERED , SIZE = 30 , BYTEMATCH = 13
22. ENABLE USARTe0_RXC, LO
23. DIM RS232_5 AS STRING * 20
24. DIM COM5 AS LONG
25. '*******************************************************************************************************************************************
26. '*** LCD 240x320 ILI9341 *******************************************************************************************************************
27. '*******************************************************************************************************************************************
28. CONFIG VPORT0 = E    'NIE TRZEBA PODLACZYC/DODACNA "-" Cs1=CS)  Rst=RESET    A0=DC  Si=SDI    Sclk=SCK
29. CONFIG GRAPHLCD = COLOR , CS1 = PORT0.0 , RST = PORT0.6 , A0 = PORT0.5 , SI = PORT0.4 , SCLK = PORT0.7
30. CONST PORTRAIT=0
31. CONST ROTATE_180 = 1
32. DIM OFFSET256 AS BYTE
33. $LIB "glcd-ILI9341_2R8_240x320.lib"
34. INITLCD
35. CLS
36. CONST BLACK = &B0000_0000
37. CONST RED = &B1110_0000
38. CONST GREEN = &B0001_1100
39. CONST BLUE = &B0000_0011
40. CONST MAGENTA = &B1110_0011
41. CONST YELLOW = &B1111_1100
42. CONST CYAN = &B0001_1111
43. CONST WHITE = &B1111_1111
44. CONST ORANGE = &B1111_0100
45. CONST BRIGHTGREEN = &B0011_1110
46. CONST BRIGHTBLUE = &B0001_1111
47. CONST DARKRED = &B1100_0000
48. CONST DARKGREEN = &B0001_0100
49. CONST DARKBLUE = &B0000_0010
50. OFFSET256 = 1
51. BOXFILL (0 , 0) - (64 , 240) , BLACK
52. OFFSET256 = 0
53. BOXFILL (0 , 0) - (255 , 240) , BLACK
54. SETFONT COLOR8X8
55. 'SETFONT COLOR16X16
56. '*******************************************************************************************************************************************
57. '*** PIN / PORT ****************************************************************************************************************************
58. '*******************************************************************************************************************************************
59. CONFIG portC.0=INPUT : CONFIG XPIN = PortC.0 , OUTPULL = PULLUP  , SENSE = BOTH
60. PORTC_INT0MASK = &B0000_0001         'przerwanie dla pinu 0
61. ON PORTC_INT0 PRZERWANIE_PINC0
62. ENABLE PORTC_INT0 , LO
63. '*******************************************************************************************************************************************
64. '*** TCc0 OVF ******************************************************************************************************************************
65. '*******************************************************************************************************************************************
66. CONFIG TCC0 = NORMAL , PRESCALE = 1               ' 1 , 2, 4, 8, 64, 256, 1024
67. TCC0_PER = 65535
68. STOP TCC0
69. '*******************************************************************************************************************************************
70. '*** ZMIENNE *******************************************************************************************************************************
71. '*******************************************************************************************************************************************
72. DIM XX AS WORD
73. '*******************************************************************************************************************************************
74. '*** PROGRAM *******************************************************************************************************************************
75. '*******************************************************************************************************************************************
76. DO
77.  
78. LCDAT  0 ,0 , "XX     :" ; XX            ;"      " , WHITE, BLACK
79.  
80. LOOP
81. END
82. '-------------------------------------------------------------------------------------------------------------------------------------------
83. '$INCLUDE "COLOR16x16.FONT"
84. $INCLUDE "COLOR8x8.FONT"
85. '-------------------------------------------------------------------------------------------------------------------------------------------
86. SERIAL4CHARMATCH:
87. PUSHALL
88. INPUT #5 , RS232_5 NOECHO
89. COM5 = VAL(RS232_5)
90. POPALL
91. RETURN
92. '-------------------------------------------------------------------------------------------------------------------------------------------
93. PRZERWANIE_PINC0:
94. IF PINC.0 = 1 THEN
95. START TCC0
96. END IF
97.  
98. IF PINC.0 = 0 THEN
99. STOP TCC0
100. XX = TCC0_CNT
101. TCC0_CNT = 0
102. END IF
103. RETURN