?? timer.c
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//=============================================================================
// File Name : Timer.c
// Function : S3C2410 Watch-Dog and Timer
// Program : Shin, On Pil (SOP)
// Date : May 21, 2002
// Version : 0.0
// History
// 0.0 : Programming start (February 27,2002) -> SOP
//=============================================================================
//=============================================================================
// File Name : Timer.c
// Function : S3C24a0 Watch-Dog and PWM Timer
// Program : Oh woo seok
// Date : April 14, 2003
// Version : 0.0
// History
// 0.0 : Programming start (April 14, 2003)
//=============================================================================
#include <stdio.h>
#include <string.h>
#include "option.h"
#include "2413addr.h"
#include "system.h"
//#include "2413lib.h"
#include "timer.h"
#include "def.h"
#include "PLL.h"
static volatile int dmaDone;
volatile int variable0,variable1,variable2,variable3,variable4;
//=========================================================================
//=========================================================================
void * timer_func[][2]=
{
(void *)Test_TimerInt, "Timer Interrupt ",
(void *)Test_Timer, "Timer Tout ",
(void *)Test_TimerDma, "Timer DMA ",
0,0
};
void Ch10_PwmTimer_test(void)
{
int i;
printf("Menu of Timer function\n");
// Wait until memory stick is inserted.
while(1) {
TimerSubMessage();
printf("\nSelect(-1 to exit): ");
i = GetIntNum();
//printf("IN:%d.\n\n", i);
if(i==-1) break;
if(i>=0 && (i<(sizeof(timer_func)/3)) )
( (void (*)(void)) (timer_func[i][0]) )(); // execute selected function.
}
}
void TimerSubMessage(void)
{
int i;
i=0;
printf("\n\n");
while(1)
{ //display menu
printf("%2d:%s",i,timer_func[i][1]);
i++;
if((int)(timer_func[i][0])==0)
{
printf("\n");
break;
}
if((i%4)==0) printf("\n");
}
}
//=========================================================================
// SMDK24a0 TOUT configuration(GPCON_U:0x44800000)
// GP23=PWM_TOUT3,GP22=PWM_TOUT2,GP21=PWM_TOUT1,GP20=PWM_TOUT0,
// GP19=PWM_ECLK
//
//Timer input clock frequency = PCLK/{prescaler value+1}/{divider value}
//{prescaler value} = 0 ~ 255 , {divider value} = 2,4,8,16
//
// PWM Timer PWM_TOUT0/1/2/3/ECLK Test - 24a0
//=========================================================================
#define GPCONU_ABAIL (TRUE) // if wanna GPGONU set "FALSE"
void Test_Timer(void)
{
int save_GPB_CON, save_GPB_DAT;
int Deadzone_test_flag= 1, PWM50_test_flag=0, Inverton_test_flag=0;
int key;
printf("[ PWM_TOUT 0,1,2,3 Test ]\n\n");
//printf("= Current Port Setting List =\n");
//printf("rGPCON_U = 0x%8x, rGPDAT = 0x%8x, rGPUP= 0x%8x \n" ,rGPCON_U,rGPDAT,rGPUP);
save_GPB_CON= rGPBCON;
save_GPB_DAT= rGPBDAT;
// controls PCLK into PWMTIMER block 0 :disable, 1:enable
//rCLKCON = rCLKCON & ~(0x100) | 0x100;
// rPCLKCON = (1<<16);
// IO port pull up control register : 0=enable, 1=disable
//rGPPU= rGPPU & ~(0x00f80000) | 0x00f80000;
// IO port configuration register relative to TIMER
rGPBCON=0x2aa; //GPI0,GPI1,GPI2,GPI3,GPI4,
// check the buffer writing, correctly
//printf("= Changed Port Setting List =\n");
//printf("rGPCON_U = 0x%8x, rGPDAT = 0x%8x, rGPUP= 0x%8x \n" ,rGPCON_L,rGPDAT,rGPPU);
LABEL:
printf("[ Select Timer Clock ]\n");
printf("[ prescaler0 | prescaler1 | divider\n");
printf("a. 0 0 1/2 \n");
printf("b. 0 0 1/4 \n");
printf("c. 0 0 1/8 \n");
printf("d. 0 0 1/16 \n");
// printf("e. 0 0 TCLK0 \n"); // not implemented in GPIO
printf("f. 255 255 1/2 \n");
printf("g. 255 255 1/4 \n");
printf("h. 255 255 1/8 \n");
printf("i. 255 255 1/16 \n");
// printf("j. 255 255 TCLK1 \n"); // // not implemented in GPIO
printf("k. 0 0 1/2 (Dead-zone value=40 \n");
printf("l. 0 0 1/2 (PWM 50%% \n");
printf("m. 0 0 1/2 (Invert on.off \n");
printf("\nSelect the function to test : ");
key = Uart_getc();
printf("%c\n\n",key);
switch(key)
{
case 'a'://All Interrupt, MUX 4 ~ 0 : 1/2 //Dead zone=1,Prescaler1=0,Prescaler0=0
rTCFG0 = rTCFG0 & ~(0xffffff) | 0x10000;
rTCFG1 = 0x0;
break;
case 'b'://All Interrupt, MUX 4 ~ 0 : 1/4 //Dead zone=1,Prescaler1=0,Prescaler0=0
rTCFG0 = rTCFG0 & ~(0xffffff) | 0x10000;
rTCFG1 = 0x1111;
break;
case 'c'://All Interrupt, MUX 4 ~ 0 : 1/8 //Dead zone=1,Prescaler1=0,Prescaler0=0
rTCFG0 = rTCFG0 & ~(0xffffff) | 0x10000;
rTCFG1 = 0x2222;
break;
case 'd'://All Interrupt, MUX 4 ~ 0 : 1/16 //Dead zone=1,Prescaler1=0,Prescaler0=0
rTCFG0 = rTCFG0 & ~(0xffffff) | 0x10000;
rTCFG1 = 0x3333;
break;
// case 'e'://All Interrupt, MUX 4 ~ 0 : TCLK0 //Dead zone=1,Prescaler1=0,Prescaler0=0
// rTCFG0 = rTCFG0 & ~(0xffffff) | 0x10000;
// rTCFG1 = 0x4444;
// break;
case 'f'://All Interrupt, MUX 4 ~ 0 : 1/2 //Dead zone=1,Prescaler1=255,Prescaler0=255
rTCFG0 = rTCFG0 & ~(0xffffff) | 0x1ffff;
rTCFG1 = 0x0;
break;
case 'g'://All Interrupt, MUX 4 ~ 0 : 1/4 //Dead zone=1,Prescaler1=255,Prescaler0=255
rTCFG0 = rTCFG0 & ~(0xffffff) | 0x1ffff;
rTCFG1 = 0x1111;
break;
case 'h'://All Interrupt, MUX 4 ~ 0 : 1/8 //Dead zone=1,Prescaler1=255,Prescaler0=255
rTCFG0 = rTCFG0 & ~(0xffffff) | 0x1ffff;
rTCFG1 = 0x2222;
break;
case 'i'://All Interrupt, MUX 4 ~ 0 : 1/16 //Dead zone=1,Prescaler1=255,Prescaler0=255
rTCFG0 = rTCFG0 & ~(0xffffff) | 0x1ffff;
rTCFG1 = 0x3333;
break;
// case 'j'://All Interrupt, MUX 4 ~ 0 : TCLK1 //Dead zone=1,Prescaler1=255,Prescaler0=255
// rTCFG0 = rTCFG0 & ~(0xffffff) | 0x1ffff;
// rTCFG1 = 0x4444;
// break;
case 'k'://All Interrupt, MUX 1 ~ 0 : 1/2 //Dead zone=40,Prescaler1=0,Prescaler0=0
rTCFG0 = rTCFG0 & ~(0xffffff) | 0x280000;
rTCFG1 = 0x0;
Deadzone_test_flag = 1;
break;
case 'l'://All Interrupt, MUX 1 ~ 0 : 1/2 //Dead zone=1,Prescaler1=0,Prescaler0=0, PWM50%
rTCFG0 = rTCFG0 & ~(0xffffff) | 0x280000;
rTCFG1 = 0x0;
PWM50_test_flag = 1;
break;
case 'm'://All Interrupt, MUX 4 ~ 0 : 1/2 //Dead zone=1,Prescaler1=0,Prescaler0=0, Invert ON
rTCFG0 = rTCFG0 & ~(0xffffff) | 0x280000;
rTCFG1 = 0x0;
Inverton_test_flag = 1;
break;
default:
rTCON = 0x0;
rGPBCON=save_GPB_CON ;
rGPBDAT=save_GPB_DAT;
return;
}
////////////////////////////////////////////////////////////////////////////////////
// Step1>> write the rTCNTBn and rTCMPBn
//(1/(PCLK/(Prescaler+1)/divider) * count(Max 65535) = Timer clock (Frequency)
////////////////////////////////////////////////////////////////////////////////////
rTCNTB0 = rTCNTB0 & ~(0xffff) | 2000; //(1/(50MHz/69/2)) * 2000 = 5.5200 msec (181.159 Hz)
//(1/(50.7MHz/69/2))* 2000 = 5.4437 msec (183.698 Hz)
//(1/(50MHz/1/2)) * 2000 = 0.0800 msec ( 12.500 KHz)
//(1/(50.7MHz/1/2)) * 2000 = 0.0788 msec ( 12.690 KHz)
rTCNTB1 = rTCNTB1 & ~(0xffff) | 4000; //(0.0000027600003) * 4000 = 11.0400 msec ( 90.579 Hz)
//(0.0000027218935) * 4000 = 10.8875 msec ( 91.848 Hz)
//(0.00000004) * 4000 = 0.1600 msec ( 6.250 KHz)
//(0.0000000394477) * 4000 = 0.1577 msec ( 6.337 KHz)
rTCNTB2 = rTCNTB2 & ~(0xffff) | 5000; //(0.0000027600003) * 5000 = 13.8000 msec ( 72.463 Hz)
//(0.0000027218935) * 5000 = 13.6094 msec ( 73.478 Hz)
//(0.00000004) * 5000 = 0.2000 msec ( 5.000 KHz)
//(0.0000000394477) * 5000 = 0.1972 msec ( 5.070 KHz)
rTCNTB3 = rTCNTB3 & ~(0xffff) | 10000; //(0.0000027600003) * 10000 = 27.6000 msec ( 36.231 Hz)
//(0.0000027218935) * 10000 = 27.2189 msec ( 36.739 Hz)
//(0.00000004) * 10000 = 0.4000 msec ( 2.500 KHz)
//(0.0000000394477) * 10000 = 0.3944 msec ( 2.535 KHz)
//printf("rTCNTB0=%d |rTCNTB1=%d |rTCNTB2=%d | rTCNTB3=%d \n",rTCNTB0,rTCNTB1,rTCNTB2,rTCNTB3);
if(PWM50_test_flag ==1 ){
rTCMPB0 = 2000; rTCMPB1 = 4000; rTCMPB2 = 5000; rTCMPB3 = 10000;
// rTCMPB0 = 4000; rTCMPB1 = 8000; rTCMPB2 = 5000; rTCMPB3 = 10000;
PWM50_test_flag = 0;
}
else{
// rTCMPB0 = 2000 - 1000; rTCMPB1 = 4000 - 2000; rTCMPB2 = 5000 - 2500; rTCMPB3 = 10000-5000;
rTCMPB0 = 1000; rTCMPB1 =1000; rTCMPB2 =1000; rTCMPB3 = 1000;
}
//printf("rTCMPB0=%d |rTCMPB1=%d |rTCMPB2=%d | rTCMPB3=%d \n",rTCMPB0,rTCMPB1,rTCMPB2,rTCMPB3);
////////////////////////////////////////////////////////////////////////////////////
// Step2.>> Set the manual update bit[TCON] of the corresponging timer. it is recommended to configure
// the inverter on/off bit
////////////////////////////////////////////////////////////////////////////////////
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