RFM 12, Bascom und Interrupts

Wolfgang Gast 28.11.2010 20:16 #1954574

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Hallo Leute,

ich sitze hier nun schon seit Wochen an diesem Problem. Das einzige was 
ich versuche ist den Empfang des RFM12-Moduls mit Bascom über einen 
Interrupt zu steuern. Vorweg mal meinen Code:

$regfile "m32def.dat"
$crystal = 8000000
$hwstack = 100                                              ' default use 32 for the hardware stack
$swstack = 100                                              'default use 10 for the SW stack
$framesize = 100
$baud = 19200
Baud = 19200
Print "Start..."
Config Lcdpin = Pin , Db4 = Portc.4 , Db5 = Portc.5 , Db6 = Portc.6 , Db7 = Portc.7 , E = Porta.1 , Rs = Porta.0
Cursor Off
Config Spi = Hard , Interrupt = Off , Data Order = Msb , Master = Yes , Polarity = Low , Phase = 0 , Clockrate = 128 , Noss = 1
Config Int0 = Rising
Enable Int0
On Int0 Isr_von_int0
Config Timer2 = Timer , Prescale = 8                        'Zum erkennen von Fehlern während der Funkübertragung: Evtl. endlosschleife --> vermeiden
On Ovf2 On_ovf0
Enable Ovf2
Stop Timer2
'#################################################
'#################################################
Rck Alias Porta.3                                           
Sck Alias Portc.0                                           
Si Alias Porta.2
Config Portb.0 = Input
Config Portb.2 = Input
Config Portb.3 = Input
Config Portd.3 = Input
Config Portd.2 = Input
Config Portb.1 = Input
Config Portd.7 = Output
Config Portd.5 = Output
Portb.0 = 1
Portb.2 = 1
Portb.3 = 1
Portd.3 = 1
Portd.2 = 0
Portb.1 = 1
Schalter2 Alias Pinb.0
Taster1 Alias Pinb.1
Taster2 Alias Pinb.3
Taster3 Alias Pinb.2
Beleuchtung Alias Portd.5
Led1 Alias Portd.7
'---Funkboard---
Spi_cs Alias Portb.4                                        ' SS-Pin
Spi_sdo Alias Pinb.6
Config Spi_cs = Output
Set Spi_cs
'#################################################
'Variablen
'#################################################
Const Rf12freq = 433.92
Const Rf12baud = 19200
Const Maxchar = 32
Dim Temps(9) As Byte
Dim Led(9) As Byte
Dim Wert As Byte
Dim Temp As Word
Dim Gedruckt(3) As Byte
'Funkmodul:
Dim I As Word
Dim Count As Byte
Dim Rfdata(32) As Byte
Dim Text As String * Maxchar At Rfdata Overlay
Dim S As String * 10
Dim Tmr_zahler As Word
Dim Abbrechen As Bit
Dim Empf_flag As Bit
'#################################################
'Declares
'#################################################
Declare Sub Rf12_init
Declare Function Rf12_trans(byval Wert As Word) As Word
Declare Sub Rf12_setfreq(byval Freq As Single)
Declare Sub Rf12_setbandwith(byval Bandwith As Byte , Byval Gain As Byte , Byval Drssi As Byte)
Declare Sub Rf12_setbaud(byval Rfbaud As Long)
Declare Sub Rf12_setpower(byval Outpower As Byte , Byval Fskmod As Byte)
Declare Sub Rf12_ready
Declare Sub Rf12_readys
Declare Sub Rf12_txdata(byval Maxchar As Byte)
Declare Sub Rf12_rxdata(byval Maxchar As Byte)
Declare Sub Rf12_rxdata_s(byval Maxchar As Byte)
Declare Sub Empfang_starten
Declare Sub Empfang_abbrechen
'#################################################
'Main-Loop
'#################################################
Waitms 100
Beleuchtung = 1
Locate 1 , 1
Lcd "Herzlich"
Locate 2 , 1
Lcd "Willkommen!"
Waitms 100
Locate 1 , 1
Lcd "Booting.."
Locate 2 , 1
Waitms 200
Config Watchdog = 2048
Start Watchdog
Locate 2 , 1
Lcd "1/5"
Call Rf12_init                                              ' ein paar Register setzen (z.B. CLK auf 10MHz)
Waitms 50
Locate 2 , 1
Lcd "2/5"
Call Rf12_setfreq(rf12freq)
Locate 2 , 1                                                '  Sende/Empfangsfrequenz auf 433,92MHz einstellen
Lcd "3/5"
Call Rf12_setbandwith(4 , 1 , 4)                            '  200kHz Bandbreite, -6dB Verstärkung, DRSSI threshold: -79dBm
Locate 2 , 1
Lcd "4/5"
Locate 2 , 1
Call Rf12_setbaud(rf12baud)                                 '  19200 baud
Lcd "5/5"
Call Rf12_setpower(0 , 6)                                   '  1mW Ausgangangsleistung, 120kHz Frequenzshift
Stop Watchdog
Print "Vor 1. Empfangen"
Call Rf12_rxdata_s(maxchar) 'ohne diese Zeile geht irgendwie gar nichts
Print "Empfangen!"
Enable Interrupts
If Empf_flag = 1 Then
   Empf_flag = 0
   Call Rf12_rxdata(maxchar)
   For Count = 1 To Maxchar
      Print Chr(rfdata(count)) ; "-";
   Next Count
   Toggle Led1
'-------------------------------------------------
'--------------------------------------
'---Funkmodul---
'--------------------------------------
Sub Rf12_init:
  Temp = Rf12_trans(&Hc0e0)
  Temp = Rf12_trans(&H80d7)
  Temp = Rf12_trans(&Hc2ab)
  Temp = Rf12_trans(&Hca81)
  Temp = Rf12_trans(&He000)
  Temp = Rf12_trans(&Hc800)
  Temp = Rf12_trans(&Hc4f7)
End Sub
Sub Rf12_setfreq(byval Freq As Single)
  Freq = Freq - 430.00
  Temp = Freq / 0.0025
  If Temp < 96 Then
    Temp = 96
  Elseif Temp > 3903 Then
    Temp = 3903
  End If
  Temp = Temp + &HA000
  Temp = Rf12_trans(temp)
End Sub
Sub Rf12_setbandwith(byval Bandwith As Byte , Byval Gain As Byte , Byval Drssi As Byte)
  Drssi = Drssi And 7
  Gain = Gain And 3
  Temp = Bandwith And 7
  Shift Temp , Left , 2
  Temp = Temp + Gain
  Shift Temp , Left , 3
  Temp = Temp + Drssi
  Temp = Temp + &H9400
  Temp = Rf12_trans(temp)
End Sub
Sub Rf12_setbaud(byval Rfbaud As Long )
  Local Ltemp As Long
  If Rfbaud < 663 Then Exit Sub
  If Rfbaud < 5400 Then
    Temp = 43104 / Rfbaud
    Temp = Temp + &HC680
    Ltemp = 344828 / Rfbaud
    Temp = Ltemp
    Temp = Temp + &HC600
  End If
  Decr Temp
  Temp = Rf12_trans(temp)
End Sub
Sub Rf12_setpower(byval Outpower As Byte , Byval Fskmod As Byte)
  Outpower = Outpower And 7
  Temp = Fskmod And 15
  Shift Temp , Left , 4
  Temp = Temp + Outpower
  Temp = Temp + &H9800
  Temp = Rf12_trans(temp)
End Sub
Sub Rf12_txdata(byval Maxchar As Byte)
  Temp = Rf12_trans(&H8238)
  Rf12_ready
  Temp = Rf12_trans(&Hb8aa)
  Rf12_ready
  Temp = Rf12_trans(&Hb8aa)
  Rf12_ready
  Temp = Rf12_trans(&Hb8aa)
  Rf12_ready
  Temp = Rf12_trans(&Hb82d)
  Rf12_ready
  Temp = Rf12_trans(&Hb8d4)
  Rf12_ready
  For Count = 1 To Maxchar
    Rf12_ready
    Temp = &HB800 + Rfdata(count)
    Temp = Rf12_trans(temp)
  Next Count
  Rf12_ready
  Temp = Rf12_trans(&H8208)
End Sub
Sub Rf12_rxdata(byval Maxchar As Byte)
  Gosub Empfang_starten
  Temp = Rf12_trans(&H82c8)
  Temp = Rf12_trans(&Hca81)
  Temp = Rf12_trans(&Hca83)
  For Count = 1 To Maxchar
    Temp = Rf12_trans(&Hb000)
    Rfdata(count) = Temp
    Rf12_ready
  Next Count
  Temp = Rf12_trans(&H8208)
  Gosub Empfang_abbrechen
End Sub
Sub Rf12_rxdata_s(byval Maxchar As Byte)                    'Besonderes Empfangen: Nur am Anfang
  Temp = Rf12_trans(&H82c8)
  Temp = Rf12_trans(&Hca81)
  Temp = Rf12_trans(&Hca83)
  For Count = 1 To Maxchar
    Temp = Rf12_trans(&Hb000)
    Rfdata(count) = Temp
    Rf12_readys
  Next Count
  Temp = Rf12_trans(&H8208)
End Sub
Function Rf12_trans(byval Wert As Word) As Word
  Local Lowbyte As Byte
  Local Highbyte As Byte
  Lowbyte = Wert And 255
  Shift Wert , Right , 8
  Reset Spi_cs
  Highbyte = Spimove(wert)
  Lowbyte = Spimove(lowbyte)
  Set Spi_cs
  Temp = Highbyte * 256
  Temp = Temp + Lowbyte
  Rf12_trans = Temp
End Function
Sub Rf12_readys
  Reset Spi_cs
  While Spi_sdo = 0
  Incr I
  If I = 10000 Then
      Exit While
  End If
End Sub
Sub Rf12_ready
  Reset Spi_cs
  While Spi_sdo = 0
  If Abbrechen = 1 Then
      Temp = Rf12_trans(&H8208)
      Abbrechen = 0
      Goto Main
      Enable Int0
  End If
End Sub
Sub Empfang_starten
   Start Timer2
   Abbrechen = 0
   'Print "E"
End Sub
Sub Empfang_abbrechen
   Stop Timer2
End Sub
'-------------------------------------------------------------------------------
'---Empfangen-------------------------------------------------------------------
'-------------------------------------------------------------------------------
Isr_von_int0:
   'Disable Interrupts
   Empf_flag = 1
   Goto Main
   'Print "!"
   'Enable Interrupts
On_ovf0:
   Incr Tmr_zahler
   If Tmr_zahler = 7000 Then
      Tmr_zahler = 0
      Abbrechen = 1
      Stop Timer2
      Print "AB"
   End If

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RFM 12, Bascom und Interrupts

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