TMS320C5505: ｃ５５０５－ｔｉｍｅｒ１－ｃｏｎｆｉｇｕｒａｔｉｏｎ

user4954326

Part Number: TMS320C5505

Dear all,

I have a TMS320C5505-ezdsp, Now the　Ｔimer0 work well, and I just modify 　 hGpt = GPT_open (GPT_0, &gptObj, &status);　 -to－＞　 hGpt = GPT_open (GPT_1, &gptObj, &status);. But the Timer1 ｏｒ timer2　was not work. What else do I need to set ?

　Best regards

　Yudong

int Timer0Init(void)
{ 
CSL_Status status;
CSL_Config hwConfig;
CSL_GptObj gptObj1;
CSL_Handle hGpt1;


/* Open the CSL GPT module */
hGpt1 = GPT_open (GPT_１, &gptObj1, &status);／／－－－Ｊｕｓｔ　 modify 　ｈｅｒｅ，GPT_0 －－ＴＯ－－GPT_1

/* Reset the GPT module */
status = GPT_reset(hGpt1);


printf("Testing INTC using SAR module\n");


//Disable interrupt
IRQ_globalDisable();

IRQ_clearAll();


/* Disable all the interrupts */
IRQ_disableAll();
/* Initialize Interrupt Vector table */
IRQ_setVecs((Uint32)(&VECSTART));

IRQ_plug(TINT_EVENT,&Timer_isr);
IRQ_enable(TINT_EVENT);


/* Timer interval 0.5sec (2Hz)*/
hwConfig.autoLoad = GPT_AUTO_ENABLE;
hwConfig.ctrlTim = GPT_TIMER_ENABLE;
hwConfig.preScaleDiv = GPT_PRE_SC_DIV_11; // Pre scale Divide input clock by 4096
// 98.304M/4096 = 24K 
hwConfig.prdLow = 0x5DC0; //0x2EE0;// 0x5DC0; 
hwConfig.prdHigh = 0x0000;
//TIM1FLAG=1;
/* Configure Timer0 */
//hGpt = GPT_open (GPT_2, &gptObj, &status);
status = GPT_config(hGpt1, &hwConfig);
IRQ_globalEnable();

/* Start timer */
GPT_start(hGpt1); 
return CSL_TEST_PASSED;
}






interrupt void Timer_isr()
{


unsigned char TIAFR_VAL=0;


TIAFR_VAL = CSL_SYSCTRL_REGS->TIAFR;
IRQ_clear(TINT_EVENT);
if((TIAFR_VAL&0x01) == 0x01)
{
fTimer++;
gpt0Isr();
}
if((TIAFR_VAL&0x02) == 0x02)
{
fTimer++;
gpt1Isr();
}


}

over 8 years ago

0 Yordan Kovachev over 8 years ago

TI__Guru**** 161600 points

Hi,

I've notified the sw team. Their feedback will be posted here.

Best Regards,
Yordan

0 Lalindra Jayatilleke over 8 years ago

TI__Mastermind 30365 points

Yudong,

Which C5000 CSL release are you using? Is it this one http://software-dl.ti.com/dsps/dsps_public_sw/dsps_swops_houston/C55X/latest/index_FDS.html

I took the example located at C:\ti\c55_lp\c55_csl_3.07\ccs_v6.x_examples\gpt\CSL_GPT_Example and made the changes to the GPT instance and it worked fine (by default it was configured for timer0, I changed to timer1). Below is a screenshot of the registers enabling the timer1 in CCS.

So you have csl_general.h macros configured correctly for C5505?

Attached is the file with the changes I made. Perhaps you could try it.

/cfs-file/__key/communityserver-discussions-components-files/791/4314.csl_5F00_gpt_5F00_example.c

C:\ti\c55_lp\c55_csl_3.07\ccs_v6.x_examples\gpt\CSL_GPTExample\csl_gpt_example.c

Hope this helps.

Lali

0 user4954326 over 8 years ago in reply to Lalindra Jayatilleke

Prodigy 100 points

I use GPIO22 as a output port, when it less than 15HZ,it works well, howerver when I set output 1kHz, it output data is wrong I use oscilloscope. Should I set up other registers? it just output square wave . high level,then next time low. thanks.

GPIO_INIT()
{
/* Disable CPU interrupt */
IRQ_globalDisable();

/* Initialize Interrupt Vector table */
IRQ_setVecs((Uint32)(&VECSTART));

/* Open GPIO module */
hGpio_GP22 = GPIO_open(&GpioObj_GP22,&status);

GPIO_reset(hGpio_GP22);

config.pinNum = CSL_GPIO_PIN22;
config.direction = CSL_GPIO_DIR_OUTPUT;
config.trigger = CSL_GPIO_TRIG_CLEAR_EDGE;
status = GPIO_configBit(hGpio_GP22,&config);
/* Clear any pending Interrupt */
IRQ_clear(GPIO_EVENT);
IRQ_plug(GPIO_EVENT,&gpioISR);

/* Enabling Interrupt */
IRQ_enable(GPIO_EVENT);
IRQ_globalEnable();
}

void gpt1Isr(void)
{

fTimer_01++;
if(fTimer_01%2 == 0)
{
GPIO_write(hGpio_GP22,CSL_GPIO_PIN22,1);
}
else
{
GPIO_write(hGpio_GP22,CSL_GPIO_PIN22,0);

}

/* Clear Timer Interrupt Aggregation Flag Register (TIAFR) */
CSL_SYSCTRL_REGS->TIAFR = 0x02;

printf("\r\nTimer1 ISR\r\n");

0 Lalindra Jayatilleke over 8 years ago in reply to user4954326

TI__Mastermind 30365 points

Yudong,

Could you please open a new thread on this question? It seems to be unrelated to the original thread.
Also, did my earlier response resolve your timer1 not working problem? what did you change to make it work?

Lali

0 user4954326 over 8 years ago in reply to Lalindra Jayatilleke

Prodigy 100 points

OK. The problem of timer1 not working is resolve. I use the code you give me and rebuild it, maybe the set of order is wrong. Thanks.

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TMS320C5505: ｃ５５０５－ｔｉｍｅｒ１－ｃｏｎｆｉｇｕｒａｔｉｏｎ