frame.c

ucos2 in lpc2104 的源码

/******************************************************************************
    uC/OS-II Porting for LPC210x

    By: Pary WU <[e-mail]>
    History:
    0406271325:parywu
        The first stable release.
******************************************************************************/
#include "config.h"
#include "lpc210x.h"
#include "console.h"
#include "irq.h"
#include "frame.h"
#include "ucos_ii.h"

#define PRINTA(a, b)    console_putstr(a);console_puthex(b);console_putstr("\r\n");
#define PRINTB(a)       console_putstr(a);console_putstr("\r\n");

#if (cDebugMode > 0)
void debugnum(unsigned int num){
    unsigned int cpu_sr;
    
    OS_ENTER_CRITICAL();
    PRINTA("debugnum=", num);
    OS_EXIT_CRITICAL();
}
void debugnpp(unsigned int num){
    static unsigned int i = 0;
    unsigned int j;
    OS_CPU_SR cpu_sr = 0;
    
    OS_ENTER_CRITICAL();
    PRINTA("debugnpp=", i++);
    OS_EXIT_CRITICAL();
    if(num > 0 && i==num){
        j = i;
    }
}
void dump_TCB(OS_TCB* pcb){
    unsigned int cpu_sr;
    OS_ENTER_CRITICAL();
    PRINTB("TCB>>>>>>>>>>>>>>>>>>>>");
    PRINTA("pcb=", (unsigned int)pcb);
    PRINTA("dly=", (pcb->OSTCBDly));
    PRINTA("sp=", *((unsigned int*)pcb));
    //dump_context(*((unsigned int**)pcb));
    OS_EXIT_CRITICAL();
}

void dump_all_TCB(){
    OS_TCB* ptcb;
    unsigned int cpu_sr;
    OS_ENTER_CRITICAL();
    ptcb = OSTCBList;
    PRINTB("dump_all_TCB");
    PRINTA("OSTCBCur=", (unsigned int)OSTCBCur);
    while (ptcb){
        dump_TCB(ptcb);
        ptcb = ptcb->OSTCBNext;
    }
    OS_EXIT_CRITICAL();
}

void dump_current_TCB(void){
    dump_TCB(OSTCBCur);
}

void dump_context(unsigned int* regs){
    unsigned int cpu_sr;
    OS_ENTER_CRITICAL();
    PRINTA("cpsr=", regs[15]);
    PRINTA("pc=", regs[14]);
    PRINTA("lr=",   regs[13]);
    PRINTA("r12=",  regs[12]);
    PRINTA("r11=",  regs[11]);
    PRINTA("r10=",  regs[10]);
    PRINTA("r9=",   regs[9]);
    PRINTA("r8=",   regs[8]);
    PRINTA("r7=",   regs[7]);
    PRINTA("r6=",   regs[6]);
    PRINTA("r5=",   regs[5]);
    PRINTA("r4=",   regs[4]);
    PRINTA("r3=",   regs[3]);
    PRINTA("r2=",   regs[2]);
    PRINTA("r1=",   regs[1]);
    PRINTA("r0=",   regs[0]);
    console_putstr("-------\r\n");
    OS_EXIT_CRITICAL();
}
#endif /* cDebugMode */

void init_hw(){
    // init PLL
    rPLLCFG = vPLLCFG;
    rPLLCON = PLLCON_PLLE;
    rPLLFEED = 0xaa;
    rPLLFEED = 0x55;
    
    while(!(rPLLSTAT&PLLSTAT_PLOCK))
        continue;
    rPLLCON = (PLLCON_PLLE|PLLCON_PLLC);
    rPLLFEED = 0xaa;
    rPLLFEED = 0x55;
    
    // init MAM
    rMAMTIM = vMAMTIM;
    rMAMCR = vMAMMODE;
    
    // init VPB for peripherals
    rVPBDIV = vVPBDIV;
    
    // init timer0
    rT0PC = vT0PC;
    rT0MR0 = vT0MR0;
    rT0MCR = vT0MCR;
    
}

void frame_start_tick(void){
    
    rVICIntEnClr = 0xffffffff;
    rVICVectAddr = 0;
    rVICIntSelect = 0;
    
    /* Timer 0 */
    rVICIntEnable = (1<<4); 
    rT0IR = 0xffffffff;
    rT0TCR = 0x02; // reset
    rT0TCR = 0x01; // enable it
    frame_irq_enable();
    
}

void frame_main(){
    init_hw();
    console_init();
    rIODIR = 0x00000008;
    app_main(); /* should never return */
}