Hallo nochmals, hab immer noch n paar Schwierigkeiten mit dem Interrupt,
habe folgenden Code für die Initialisierung, größtenteils von der TI
homepage,
1 | void DeviceInit(void)
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2 | {
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3 | WDogDisable(); // Disable the watchdog initially
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4 | DINT; // Global Disable all Interrupts
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5 | IER = 0x0000; // Disable CPU interrupts
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6 | IFR = 0x0000; // Clear all CPU interrupt flags
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7 |
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8 | // SYSTEM CLOCK speed based on Crystal = 20 MHz
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9 | // 0xA = 100 MHz (10)
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10 | // 0x9 = 90 MHz (9)
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11 | // 0x8 = 80 MHz (8)
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12 | // 0x7 = 70 MHz (7)
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13 | // 0x6 = 60 MHz (6)
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14 | // 0x5 = 50 MHz (5)
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15 | // 0x4 = 40 MHz (4)
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16 | // 0x3 = 30 MHz (3)
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17 | // 0x2 = 20 MHz (2)
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18 |
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19 | PLLset(0xA); // choose from options above
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20 |
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21 | // Initialise interrupt controller and Vector Table
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22 | // to defaults for now. Application ISR mapping done later.
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23 | PieCntlInit();
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24 | PieVectTableInit();
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25 |
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26 | EALLOW; // below registers are "protected", allow access.
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27 |
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28 | // HIGH / LOW SPEED CLOCKS prescale register settings
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29 | SysCtrlRegs.HISPCP.all = 0x0002; // Sysclk / 4 (25 MHz)
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30 | SysCtrlRegs.LOSPCP.all = 0x0002; // Sysclk / 4 (25 MHz)
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31 | SysCtrlRegs.XCLK.bit.XCLKOUTDIV=2;
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32 | .
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33 | .
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34 | .
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35 | }
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Vektor initialisierung,
1 | // This function initializes the PIE control registers to a known state.
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2 | //
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3 | void PieCntlInit(void)
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4 | {
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5 | // Disable Interrupts at the CPU level:
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6 | DINT;
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7 |
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8 | // Disable the PIE
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9 | PieCtrlRegs.PIECTRL.bit.ENPIE = 0;
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10 |
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11 | // Clear all PIEIER registers:
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12 | PieCtrlRegs.PIEIER1.all = 0;
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13 | PieCtrlRegs.PIEIER2.all = 0;
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14 | PieCtrlRegs.PIEIER3.all = 0;
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15 | PieCtrlRegs.PIEIER4.all = 0;
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16 | PieCtrlRegs.PIEIER5.all = 0;
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17 | PieCtrlRegs.PIEIER6.all = 0;
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18 | PieCtrlRegs.PIEIER7.all = 0;
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19 | PieCtrlRegs.PIEIER8.all = 0;
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20 | PieCtrlRegs.PIEIER9.all = 0;
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21 | PieCtrlRegs.PIEIER10.all = 0;
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22 | PieCtrlRegs.PIEIER11.all = 0;
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23 | PieCtrlRegs.PIEIER12.all = 0;
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24 |
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25 | // Clear all PIEIFR registers:
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26 | PieCtrlRegs.PIEIFR1.all = 0;
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27 | PieCtrlRegs.PIEIFR2.all = 0;
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28 | PieCtrlRegs.PIEIFR3.all = 0;
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29 | PieCtrlRegs.PIEIFR4.all = 0;
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30 | PieCtrlRegs.PIEIFR5.all = 0;
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31 | PieCtrlRegs.PIEIFR6.all = 0;
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32 | PieCtrlRegs.PIEIFR7.all = 0;
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33 | PieCtrlRegs.PIEIFR8.all = 0;
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34 | PieCtrlRegs.PIEIFR9.all = 0;
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35 | PieCtrlRegs.PIEIFR10.all = 0;
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36 | PieCtrlRegs.PIEIFR11.all = 0;
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37 | PieCtrlRegs.PIEIFR12.all = 0;
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38 | }
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39 |
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40 |
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41 | void PieVectTableInit(void)
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42 | {
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43 | int16 i;
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44 | Uint32 *Source = (void *) &ISR_ILLEGAL;
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45 | Uint32 *Dest = (void *) &PieVectTable;
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46 |
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47 | EALLOW;
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48 | for(i=0; i < 128; i++)
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49 | *Dest++ = *Source;
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50 | EDIS;
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51 |
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52 | // Enable the PIE Vector Table
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53 | PieCtrlRegs.PIECTRL.bit.ENPIE = 1;
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54 | }
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theoretisch wenn ich nun die Interrupt Funktion aufrufe, sollte das
funktionieren, habe einiges rumprobiert, laufe aber momentan gegen die
Wand,
1 | interrupt void INT1_ISR(void) // INT13 or CPU-Timer1
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2 | {
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3 |
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4 | int_cntr_1++;//Zähler hochzählen
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5 |
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6 | GpioDataRegs.GPASET.bit.GPIO15 = 1;//LED an
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7 |
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8 | }
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