Hi, since tree days i have been trying to run interrupt on my MPC5604B. I chcecked everytking but i can't understand what i'm doing wrong. Code never go into IRQ_1 function. Could anybody help me to run PIT interrupt? I use CW 5.9.0 and that is my code:
#include "MPC5604B_M27V.h"#include "IntcInterrupts.h"#include "watchdog.h"void modes_clock_init(void){ ME.MER.R = 0x0000001D; // Enable DRUN, RUN0, SAFE, RESET modes // Initialize PLL before turning it on: // Use 1 of the next 2 lines depending on crystal frequency: CGM.FMPLL_CR.R = 0x02400100; // 8 MHz xtal: Set PLL0 to 64 MHz ME.RUN[0].R = 0x001F0074; // RUN0 cfg: 16MHzIRCON,OSC0ON,PLL0ON,syclk=PLL ME.RUNPC[1].R = 0x00000010; // Peri. Cfg. 1 settings: only run in RUN0 mode ME.PCTL[92].R = 0x01; /* PIT, RTI: select ME_RUN_PC[0] */ // Mode Transition to enter RUN0 mode: ME.MCTL.R = 0x40005AF0; // Enter RUN0 Mode & Key ME.MCTL.R = 0x4000A50F; // Enter RUN0 Mode & Inverted Key while (ME.GS.B.S_MTRANS) {} // Wait for mode transition to complete // Note: could wait here using timer and/or I_TC IRQ while(ME.GS.B.S_CURRENTMODE != 4) {}// Verify RUN0 is the current mode }void irq_enable(void) { INTC.CPR.B.PRI = 0; /* Single Core: Lower INTC's current priority */ asm(" wrteei 1"); /* Enable external interrupts */}void IRQ_1(void){ uart0_send_char('1'); PIT.CH[0].TFLG.B.TIF=1; }void main(void) { int i=0; modes_clock_init(); watchdog_disable(); INTC_InitINTCInterrupts(); INTC_InstallINTCInterruptHandler(IRQ_1, 59, 1); INTC.MCR.B.HVEN = 1; PIT.PITMCR.B.FRZ=1; PIT.PITMCR.B.MDIS=0; PIT.CH[0].LDVAL.R = 64000; PIT.CH[0].TCTRL.B.TIE = 0x1 ; PIT.CH[0].TCTRL.B.TEN = 0x1 ; irq_enable(); while(1){ i++; }} Thanks for help.
