📄 timer.c
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//printf("rTCON = 0x%6x (Before) <= Timer control register.\n",rTCON);
// [22:20] [19:16] [15:12] [11:8] [7:4] [3:0]
// 110 1010 1010 1010 0000 1010
if(Deadzone_test_flag == 1)
rTCON = rTCON & ~(0xffffff) | 0x6aaa1a; //Auto reload, Inverter off, Manual update, Stop, Dead zone enable
else
rTCON = rTCON & ~(0xffffff) | 0x6aaa0a; //Auto reload, Inverter off, Manual update, Stop, Dead zone disable
if(Inverton_test_flag == 1) rTCON |= 0x44404;
//printf("rTCON = 0x%6x (After) <= Timer control register.(0x6aaa0a)\n",rTCON);
////////////////////////////////////////////////////////////////////////////////////
// Step3>> set start bit of corresponding timer to start the timer
// (at the same time, clear the manual update bit)
////////////////////////////////////////////////////////////////////////////////////
// [22:20] [19:16] [15:12] [11:8] [7:4] [3:0]
// 101 1001 1001 1001 0000 1001
if(Deadzone_test_flag == 1){
//Auto reload, Inverter off, No operation, Timer0&1 Start, Dead zone enable
rTCON = rTCON & ~(0xffffff) | 0x099919;
Deadzone_test_flag=0;
}
else{
if(Inverton_test_flag ==1){
rTCON = rTCON & ~(0xffffff) | 0x5ddd0d; // inverter on
Inverton_test_flag = 0;
}
//Auto reload, Inverter off, No operation, Start, Dead zone disable
rTCON = rTCON & ~(0xffffff) | 0x599909;
}
printf("rTCON = 0x%6x (After) <= Timer control register.(0x599909)\n\n",rTCON);
printf("rGPICON = 0x%8x (After) <= Timer control register.(0x599909)\n\n",rGPBCON);
//printf("\n");
printf("Probing PWM TOUT0,1,2,3 and ECLK, respectively TP20,19,18,17,16 \n");
printf("\nCheck PWM (Pulse Width Modulation) Output\n");
printf("Press any key to exit.\n");
printf("\n\n");
//rTCON|=(1<<2)|(1<<10)|(1<<14)|(1<<18);
Uart_getc();
goto LABEL;
////////////////////////////////////////////////////////////////////////////////////
// Step4 >> Stop timer
////////////////////////////////////////////////////////////////////////////////////
rTCON = 0x0; //One-shot, Inverter off, No operation, Dead zone disable, Stop
//printf("rTCNTB0=0x%6x|rTCNTB1=0x%6x|rTCNTB2=0x%6x|rTCNTB3=0x%6x\n",rTCNTB0,rTCNTB1,rTCNTB2,rTCNTB3);
//printf("rTCMPB0=0x%6x|rTCMPB2=0x%6x|rTCMPB2=0x%6x|rTCMPB3=0x%6x\n",rTCMPB0,rTCMPB1,rTCMPB2,rTCMPB3);
//printf("rTCON = 0x%6x <= Timer control register.(0x0)\n",rTCON);
rGPBCON=save_GPB_CON ;
rGPBDAT=save_GPB_DAT;
}
//========================================================
// Timer Interrupt 0/1/2/3/4 test
//========================================================
void Test_TimerInt(void)
{
variable0 = 0;variable1 = 0;variable2 = 0;variable3 = 0;variable4 = 0;
rINTMSK = ~(BIT_TIMER4 | BIT_TIMER3 | BIT_TIMER2 | BIT_TIMER1 | BIT_TIMER0);
// timer interrupt enable
// timer 3/4 source select with sub register - ows
//printf("rINTSUBMSK (Before) = 0x%8x\n",rINTSUBMSK);
//rINTSUBMSK = ~( BIT_SUB_TIMER3 | BIT_SUB_TIMER4);
//printf("rINTMSK (Before) = 0x%8x\n",rINTMSK);
//rINTMSK = ~( BIT_TIMER34_WDT| BIT_TIMER2 | BIT_TIMER1 | BIT_TIMER0);
//printf("rINTMSK (After) = 0x%8x <= Timer4,3,2,1 Bit[14:10]\n",rINTMSK);
pISR_TIMER0 = (int)Timer0Done;
pISR_TIMER1 = (int)Timer1Done;
pISR_TIMER2 = (int)Timer2Done;
pISR_TIMER3 = (int)Timer3Done;
pISR_TIMER4 = (int)Timer4Done;
printf("\n[ Timer 0,1,2,3,4 Interrupt Test ]\n\n");
rTCFG0 = rTCFG0 & ~(0xffffff) | 0x000f0f; //Dead zone=0,Prescaler1=15(0x0f),Prescaler0=15(0x0f)
rTCFG1 =rTCFG1 & ~(0xffffff) | 0x001233; //All interrupt,Mux4=1/2,Mux3=1/4,Mux2=1/8,Mux1=1/16,Mux0=1/16
//Timer input clock frequency = PCLK/(prescaler value+1)/(divider value)
rTCNTB0 = 0xffff; //(1/(50MHz/16/16)) * 0xffff (65535) = 0.334s ( 2.994Hz)
rTCNTB1 = 0xffff; //(1/(50MHz/16/16)) * 0xffff (65535) = 0.334s ( 2.994Hz)
rTCNTB2 = 0xffff; //(1/(50MHz/16/8 )) * 0xffff (65535) = 0.163s ( 6.135Hz)
rTCNTB3 = 0xffff; //(1/(50MHz/16/4 )) * 0xffff (65535) = 0.078s (12.820Hz)
rTCNTB4 = 0xffff; //(1/(50MHz/16/2 )) * 0xffff (65535) =0.039s (25.641Hz)
// [22:20] [19:16] [15:12] [11:8] [7:4] [3:0]
// 110 1010 1010 1010 0000 0010
// rTCON = 0x6aaa02; //Auto reload (T0=One-shot), Inverter off, Manual update, Dead zone disable, Stop
rTCON = rTCON & ~(0xffffff) | 0x6aaa0a; //Auto reload, Inverter off, Manual update, Dead zone disable, Stop
rTCNTB0 = 30000;
rTCNTB1 = 30000;
rTCNTB2 = 30000;
rTCNTB3 = 30000;
rTCNTB4 = 30000;
rTCMPB0 = 15000;
rTCMPB1 = 15000;
rTCMPB2 = 15000;
rTCMPB3 = 15000;
// [22:20] [19:16] [15:12] [11:8] [7:4] [3:0]
// 101 1001 1001 1001 0000 0001
rTCON = rTCON & ~(0xffffff) | 0x599901; //Auto reload(T0=One-shot),Inverter off,No operation,Dead zone disable,Start
//printf("Probing PWM TOUT 0 : TP21\n");
//printf("Probing PWM TOUT 1 : TP20\n");
//printf("Probing PWM TOUT 2 : TP19\n");
//printf("Probing PWM TOUT 3 : TP18\n\n");
if(PCLK==25000000)
{
printf("PCLK 50MHz, Timer TOUT 0 : 0.334s ( 2.994Hz)\n");
printf("PCLK 50MHz, Timer TOUT 1 : 0.334s ( 2.994Hz)\n");
printf("PCLK 50MHz, Timer TOUT 2 : 0.163s ( 6.135Hz)\n");
printf("PCLK 50MHz, Timer TOUT 3 : 0.078s (12.820Hz)\n");
printf("PCLK 50MHz, Timer TOUT 4 : 0.039s (25.641Hz) <= No Pin Out\n\n");
}
while(variable0 ==0)
{
// printf ("variable0=%D\n",variable0 );
printf ("variable4 == %d && variable3==%d && variable2==%d && variable1==%d && variable0==%d\n",variable4 , variable3, variable2, variable1, variable0);
}
Delay(1); //To compensate timer error(<1 tick period)
rTCON = 0x0; //One-shot, Inverter off, No operation, Dead zone disable, Stop
if(variable4 == 8 && variable3==4 && variable2==2 && variable1==1 && variable0==1)
{
printf("Timer 0,1,2,3,4Interrupt Test --> OK\n");
}
else
{
printf("Timer 0,1,2,3,4 Interrupt Test --> Fail............\n");
}
printf("Timer0 : %d (=1), Timer1 : %d (=1), Timer2 : %d (=2), Timer3 : %d (=4),Timer4 : %d (=8) \n",
variable0,variable1,variable2,variable3,variable4);
printf("Press any key to exit.....\n");
while(!Uart_getc()); //Key board press check
// timer interrupt disable
//printf("rINTSUBMSK (Before) = 0x%8x\n",rINTSUBMSK);
//rINTSUBMSK = ( BIT_SUB_TIMER3 | BIT_SUB_TIMER4);
//printf("rINTMSK (Before) = 0x%8x\n",rINTMSK);
rINTMSK |= ( BIT_TIMER4|BIT_TIMER3| BIT_TIMER2 | BIT_TIMER1 | BIT_TIMER0);
//printf("rINTMSK (After) = 0x%8x\n",rINTMSK);
}
//========================================================
// Timer Interrupt Request
//========================================================
void __irq Timer0Done(void)
{
rSRCPND = BIT_TIMER0; //Clear pending bit
rINTPND = BIT_TIMER0;
rINTPND; //Prevent an double interrupt pending
variable0++;
}
//---------------------------------------------------------------------
void __irq Timer1Done(void)
{
rSRCPND = BIT_TIMER1; //Clear pending bit
rINTPND = BIT_TIMER1;
rINTPND;
variable1++;
}
//---------------------------------------------------------------------
void __irq Timer2Done(void)
{
rSRCPND = BIT_TIMER2; //Clear pending bit
rINTPND = BIT_TIMER2;
rINTPND;
variable2++;
}
//---------------------------------------------------------------------
void __irq Timer3Done(void)
{
rSRCPND = BIT_TIMER3; //Clear pending bit
rINTPND = BIT_TIMER3;
rINTPND;
variable3++;
}
//---------------------------------------------------------------------
void __irq Timer4Done(void)
{
rSRCPND = BIT_TIMER4; //Clear pending bit
rINTPND = BIT_TIMER4;
rINTPND;
variable4++;
}
/*
//---------------------------------------------------------------------
void __irq Timer3_4Done(void)
{
if(rSUBSRCPND & 0x00000200){ // timer3 sub interrupt
rSUBSRCPND = BIT_SUB_TIMER3;
variable3++;
}
if(rSUBSRCPND & 0x00000400){ // timer4 sub interrupt
rSUBSRCPND = BIT_SUB_TIMER4;
variable4++;
}
rSRCPND = BIT_TIMER34_WDT; //Clear pending bit
rINTPND = BIT_TIMER34_WDT;
rINTPND;
}
*/
/******************** Timer DMA Request Test ********************/
void Test_TimerDma(void)
{
int i;
rTCFG0 = rTCFG0 & ~(0xffffff) | 0x000021; //PCLK = 67.5MHz , prescaler 0x15= 21 ===>2MHz)
//rTCFG0 = rTCFG0 & ~(0xffffff) | 0x0; //Dead zone=0, Prescaler0,1 = 0
rTCFG1 = rTCFG1 & ~(0xffffff) | 0x0 << 0 | 0x1 << 20; //Mux0 1/16, DMA Request Channel 0
rTCNTB0 = 10000;
rTCMPB0 = 30000;
//rTCNTB1 = 65500;
//rTCMPB1 = 30000;
//rTCNTB2 = 65500;
//rTCMPB2 = 30000;
//rTCNTB3 = 65500;
//rTCMPB3 = 30000;
//rTCNTB4 = 65500;
rTCON = rTCON & ~(0xffffff) | 0x1<<1 | 0x1<<9 | 0x1<<13 | 0x1<<17 | 0x1<<21 ; //Manual update
printf("\nTimer 0 DMA Request Test \n\n");
// timer 0 DMA transfer test
//for(i=0 ; i < 4 ; i++)
//M2M_Timer_Test(0, _NONCACHE_STARTADDRESS, _NONCACHE_STARTADDRESS + 0x80000, 0, 0, 0x80000);
printf("Press any key\n");
while(!Uart_getc()); //Key board press check
}
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