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ARM9 - STR912FAW44X6

Sergiy S

Hi everyone.
I'm using STR912FAW44X6.
I need to initial Output Compare for buzzer.
Please, check my code below:

                        TIM1->CR2 = 150;
                        TIM1->OC1R = 5000;

                        TIM1->CR1 = 1 << 10;                   // Set the FOLV1
                        TIM1->CR1 |= 1 << 8;                           // Set OLVL1
                        TIM1->CR1 |= 1 << 6;                           //Set  OC1E
                        TIM1->CR1 |= 1 << 15;                          //Enable Counter


                Init_Ports ( 3.7, Pin_Out_Alt3, 0 );    //Buzzer. Output Compare OC1


The frequency for timer is 96000000/8/8/150 = 10000Hz.
The output function for pin is right. I can see the GPIO3->GPIOOUT[3] register, it's right for TIM1_OCMP1( pin 3.7 -> Out_Alt_3). On pin 3.7 is 3V everytime.
What i need to add to my code? What is wrong?

If i'm using interrupt i can setup for 1 sec - it's working ( i send message throught UART).