MPC5604B INTC_InstallINTCInterruptHandler

[martinkehrer]

Controller crashs always by a PIT0 and/or PIT1 interrupt.

#include "MPC5604B.h" #include "IntcInterrupts.h"  void initModesAndClock(void) {   ME.MER.R = 0x0000001D;       CGM.FMPLL_CR.R = 0x02400100;        ME.RUN[0].R = 0x001F0074;         ME.RUNPC[0].R = 0x00000010;       ME.PCTL[16].R = 0x0000;   ME.PCTL[68].R = 0x0000;       ME.PCTL[92].R = 0x0000;           ME.MCTL.R = 0x40005AF0;         ME.MCTL.R = 0x4000A50F;           while (ME.IS.B.I_MTC != 1) {}      ME.IS.R = 0x00000001;           } void initPeriClkGen(void) {   CGM.SC_DC[0].R = 0x80;   CGM.SC_DC[1].R = 0x80;     CGM.SC_DC[2].R = 0x80;   } void disableWatchdog(void) {   SWT.SR.R = 0x0000c520;       SWT.SR.R = 0x0000d928;    SWT.CR.R = 0x8000010A;     }    void Pit0Interrupt(void) {       PIT.CH[0].TFLG.R = 0x00000001;    } void Pit1Interrupt(void) {      PIT.CH[1].TFLG.R = 0x00000001;   } void main() {      /* Init */        initModesAndClock();        initPeriClkGen();         disableWatchdog();                  INTC_InstallINTCInterruptHandler(Pit0Interrupt,59,2); //Channel 0         INTC_InstallINTCInterruptHandler(Pit1Interrupt,60,2); //Channel 1          PIT.PITMCR.R = 0x00000000;        PIT.CH[1].LDVAL.R=64000000;         PIT.CH[0].LDVAL.R=128000000;        PIT.CH[1].TFLG.R = 0x00000001;        PIT.CH[0].TFLG.R = 0x00000001;        PIT.CH[1].TCTRL.R = 0x00000003;        PIT.CH[0].TCTRL.R = 0x00000003;        INTC.CPR.B.PRI = 0;        for(;;)        {         } }

Update, but still not working:

#include "MPC5604B.h"   #include "IntcInterrupts.h"      void initModesAndClock(void) {     ME.MER.R = 0x0000001D;    /** EXTERNAL CLOCK */   /** Use external clock from crystal oscillator */   /** Use this crystal oscillator in fast mode */   CGM.FXOSC_CTL.B.OSCBYP = 0u;   /** Disable slow mode for external clock */   CGM.SXOSC_CTL.R = 0u;    /** EXTERNAL CLOCK CONTROL */   /** Disable FMPLL clock monitor */   CGM.CMU_CSR.B.CME_A = 0u;   /** Disable frequency measure */   CGM.CMU_CSR.B.SFM = 0u;   /** The external clock shall be greater than FIRC(16MHz)/divisor_value[1, 2, 4, 8]   * Like external clock is between 4 and 16 MHz so divisor_value = 8.   * This condition is always right   */   CGM.CMU_CSR.B.RCDIV = 3u;    /** PLL COMPUTATION */   /** Disable PLL modulation */   CGM.FMPLL_MR.B.FM_EN = 0u;   CGM.FMPLL_CR.R = 0x02400100;          ME.RUN[0].R = 0x001F0074;           ME.RUNPC[0].R = 0x00000010;         ME.PCTL[16].R = 0x0000;     ME.PCTL[68].R = 0x0000;         ME.PCTL[92].R = 0x0000;               ME.MCTL.R = 0x40005AF0;           ME.MCTL.R = 0x4000A50F;             /** wait transition completed */   while (ME.GS.B.S_MTRANS != 0u) {}   /** check clock = 64MHz is stable */   while (ME.GS.B.S_FXOSC != 1u) {}   /** check that current mode = RUN0 */   while (ME.GS.B.S_CURRENTMODE != 4u) {}            }   void initPeriClkGen(void) {     CGM.SC_DC[0].R = 0x80;     CGM.SC_DC[1].R = 0x80;       CGM.SC_DC[2].R = 0x80;     }   void disableWatchdog(void) {     SWT.SR.R = 0x0000c520;         SWT.SR.R = 0x0000d928;      SWT.CR.R = 0x8000010A;       }      void Pit0Interrupt(void) {    //if( (SIU.PGPDO[0].R & 0x00080000)>0) SIU.PGPDO[0].R &= ~(0x00080000);    //else SIU.PGPDO[0].R |= 0x00080000;   SIU.GPDO[12].B.PDO ^= 1;    if (PIT.CH[0].TFLG.R == 1) PIT.CH[0].TFLG.R = 1; }   void Pit1Interrupt(void) {     //if( (SIU.PGPDO[0].R & 0x00000002)>0) SIU.PGPDO[0].R &= ~(0x00000002);    //else SIU.PGPDO[0].R |= 0x00000002;   SIU.GPDO[30].B.PDO ^= 1;    if (PIT.CH[1].TFLG.R == 1) PIT.CH[1].TFLG.R = 1; }   void main()   {          /* Init */          initModesAndClock();          initPeriClkGen();           disableWatchdog();                     SIU.PCR[12].R = 0x0200;        SIU.PCR[30].R = 0x0200;        SIU.GPDO[12].B.PDO = 0;         SIU.GPDO[30].B.PDO = 0;                INTC_InstallINTCInterruptHandler(Pit0Interrupt,59,2); //Channel 0          INTC_InstallINTCInterruptHandler(Pit1Interrupt,60,2); //Channel 1             PIT.PITMCR.R = 0x00000000;          PIT.CH[1].LDVAL.R=64000000;           PIT.CH[0].LDVAL.R=128000000;          PIT.CH[1].TFLG.R = 0x00000001;          PIT.CH[0].TFLG.R = 0x00000001;          PIT.CH[1].TCTRL.R = 0x00000003;          PIT.CH[0].TCTRL.R = 0x00000003;          INTC.CPR.R = 0u;        for(;;)          {         //Test without Interrupts ok       //if(PIT.CH[0].TFLG.R>0) Pit0Interrupt();       //if(PIT.CH[1].TFLG.R>0) Pit1Interrupt();        }   }  

[martin_kovar]

Hi Martin,

Could you please clarify what the "wrong" mean? Is TFLG set? Have you set EE bit in MSR register? Do you get any IVOR?

In the project I sent you, it is default project from CodeWarrior 2.10. There is no change in IntcInterrupts.c.

If it is possible, share here your whole project. I will check.

Regards,

Martin

[martinkehrer]

Here my project

[martin_kovar · Accepted solution]

Hi Martin,

in the linker file MPC5604B_RAM.lcf find group internal_ram and fix the alignment of __unitialized_intc_handlertable to 0x800 instead of your value. Table has to be aligned  to 2KB.

Now, it will work.

Regards,

Martin

[martinkehrer]

The PIT timer is working (I used that example to write my code). The command intc_installINTCInterruptHandler is doing something wrong (Have i to change some settings in IntcInterrupts.c? INTC_INTERRUPTS_REQUEST_VECTOR_TABLE_SIZE = 210? function_align = 16?)

[martin_kovar]

Hi,

look at this example. It shows, how to use PIT timer.

Example MPC5604B PinToggleStationery CW210

Regards,

Martin

[martinkehrer]

Replace Instruction?

The problem is the interrupt handler (Setting the TCTRL = 0x00000001 and using lines 91 and 92 the code works)

[romainbenet]

Place a condition for these:

if (PIT.CH[0].TFLG.R == 1) PIT.CH[0].TFLG.R = 1;

if (PIT.CH[1].TFLG.R == 1) PIT.CH[1].TFLG.R = 1;

[martinkehrer]

no change

[romainbenet]

Hi,

before line 06 - CGM.FMPLL_CR.R = 0x02400100:

   /** EXTERNAL CLOCK */

   /** Use external clock from crystal oscillator */

   /** Use this crystal oscillator in fast mode */

   CGM.FXOSC_CTL.B.OSCBYP = 0u;

   /** Disable slow mode for external clock */

   CGM.SXOSC_CTL.R = 0u;

   /** EXTERNAL CLOCK CONTROL */

   /** Disable FMPLL clock monitor */

   CGM.CMU_CSR.B.CME_A = 0u;

   /** Disable frequency measure */

   CGM.CMU_CSR.B.SFM = 0u;

   /** The external clock shall be greater than FIRC(16MHz)/divisor_value[1, 2, 4, 8]

    * Like external clock is between 4 and 16 MHz so divisor_value = 8.

    * This condition is always right

    */

   CGM.CMU_CSR.B.RCDIV = 3u;

   /** PLL COMPUTATION */

   /** Disable PLL modulation */

   CGM.FMPLL_MR.B.FM_EN = 0u;

then change lines 15 & 16 (check ME.IS) by:

/** wait transition completed */

while (ME.GS.B.S_MTRANS != 0u) {}

/** check clock = 64MHz is stable */

while (ME.GS.B.S_FXOSC != 1u) {}

/** check that current mode = RUN0 */

while (ME.GS.B.S_CURRENTMODE != 4u) {}

Now your clock configuration is right.

Change line 53 by INTC.CPR.R = 0u;

You can toogle pins at each PIT interrupt to ensure that application runs (SIU.PCR[number_pad].R = 0x0200u; /** output GPIO */ before PIT.PITMCR instruction then SIU.GPDO[number_pad].B.PDO = 0/1u; in PitxInterrupt functions /** low / high-level output state */

[martinkehrer]

still not working

[romainbenet]

If you use pads 12 & 30 (PA[12] & PB[14]) at lines 70&71 so change your code into Pit0Interrupt & PitInterrupt by:

SIU.GPDO[12].B.PDO ^= 1; for toogle pad of Pit0Interrupt and SIU.GPDO[30].B.PDO ^= 1; for Pit1Interrupt.

After pad initialization at lines 70&71 add following to set default output state: SIU.GPDO[12].B.PDO = 0; and SIU.GPDO[30].B.PDO = 0;

Replace instruction from line 83 to line 72.