Hi
I think that TIM2 clock is 60MHz (APB1 clcok is 30MHz).
You should add update event generation.
static void timer2_setup ( void ) {
/* Set timer start value. */
TIM_CNT(TIM2) = 1;
/* Set timer prescaler. 72MHz/1440 => 50000 counts per second. */
TIM_PSC(TIM2) = 20000; // 120M/2000 = 60k/second
/* End timer value. If this is reached an interrupt is generated. */
TIM_ARR(TIM2) = 600;
+ /* Load prescaler value. */
+ TIM_EGR(TIM2) = TIM_EGR_UG;
+
+ /* Clear update interrupt. */
+ TIM_SR(TIM2) &= ~TIM_SR_UIF;
+
/* Update interrupt enable. */
TIM_DIER(TIM2) |= TIM_DIER_UIE;
//timer_set_repetition_counter ( TIM2, 100 );
/* Start timer. */
TIM_CR1(TIM2) |= TIM_CR1_CEN;
return;
}
Regards,
Toshiaki Yoshida
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