AVR Freaks

Yup, The above code works great.

I modified this by changing "Timer Instance", "ISR" & "Timer ID".

ie, ID_TC0, TC0, & TC0_Handler(void) to some other timer

This code looks exactly like the one I have been working on.
 

I do agree with the fact that there are 12 timers on board.
But am confused seeing the below mentioned statement

3 channels each on timers TC0,TC1,TC2,TC3

as per the code suggested by jstampfl,

void TC1_1_Handler(void)
{
	volatile uint32_t ul_dummy;

	/* Clear status bit to acknowledge interrupt */
	ul_dummy = tc_get_status(TC1, 1);

	/* Avoid compiler warning */
	UNUSED(ul_dummy);

	printf("3 ");
}

static void configure_tc1_1(void)
{
	uint32_t ul_div;
	uint32_t ul_tcclks;
	uint32_t ul_sysclk = sysclk_get_cpu_hz();

	/* Configure PMC */
	pmc_enable_periph_clk(ID_TC1_1);

	/** Configure TC for a 8Hz frequency and trigger on RC compare. */
	tc_find_mck_divisor(8, ul_sysclk, &ul_div, &ul_tcclks, ul_sysclk);
	tc_init(TC1, 1, ul_tcclks | TC_CMR_CPCTRG);
	tc_write_rc(TC1, 1, (ul_sysclk / ul_div) / 8);

	/* Configure and enable interrupt on RC compare */
	NVIC_EnableIRQ((IRQn_Type) ID_TC1_1);
	tc_enable_interrupt(TC1, 1, TC_IER_CPCS);

	tc_start(TC1, 1);
}

I could see usage of

ID_TC1_1

and

TC1_1_Handler

Now moving on to my code, as per my observation,

in header file "same70q21.h" i could see timer declarations like TC0_Handler(). TC1_Handler(), ......., TC11_Handler()

Here I couldn't see any channel wise classifications.

Again, the issue could be observed on the peripheral interrupt ID.

in header file "same70q21.h" i could see timer ID definitions like ID_TC0. ID_TC1, ......., ID_TC11

Here too, I couldn't see any channel wise classifications.

Let me make a wild guess.

I'll be back after doing some experiments on my board.

Truly speaking, ASF is really freaking me out.

Finally got things working.

like jstampfl said.

If I need to use TC1, channel 0, then peripheral ID & interrupt handler should be used for TC3.

Here is a working sample.

void TC3_Handler(void)
{
volatile uint32_t ul_dummy;

/* Clear status bit to acknowledge interrupt */
ul_dummy = tc_get_status(TC1, 0);

/* Avoid compiler warning */
UNUSED(ul_dummy);

ioport_toggle_pin_level(LED0_GPIO);
}

static void configure_tc(void)
{
uint32_t ul_div;
uint32_t ul_tcclks;
uint32_t ul_sysclk = sysclk_get_cpu_hz();

/* Configure PMC */
pmc_enable_periph_clk(ID_TC3);

/** Configure TC for a 4Hz frequency and trigger on RC compare. */
tc_find_mck_divisor(4, 150000000, &ul_div, &ul_tcclks, 150000000);
tc_init(TC1, 0, ul_tcclks | TC_CMR_CPCTRG);
tc_write_rc(TC1, 0, (150000000 / ul_div) / 4);

/* Configure and enable interrupt on RC compare */
NVIC_EnableIRQ((IRQn_Type) ID_TC3);
tc_enable_interrupt(TC1, 0, TC_IER_CPCS);

tc_start(TC1, 0);

}

Thank you guys for the support.

I also Thank the Atmel Support guys for helping me get this issue resolved.

IF anybody knows how to interface USB host in SAM E70, please respond to this link.

https://community.atmel.com/forum...