Altera PLL Reconfig + Attera PLL = don't work

Hello all. I use Quartus 13.1. And DE1-SoC board with 5CSEMA5F31C6N.

I need to dynamicly phase shift output clocks from PLL so, I make Qsys system with Altera PLL Reconfig and Altera PLL, and some PIO.

I generate system and write code in Eclipse for NiosII, but phases don't shift, and reading from Altera PLL Reconfig registers don't work.

I don't know where i'am make a mistake...

P.S. Altera PLL - Enable dynamic reconfiguration of PLL is on

P.S. clk_0 = 50MHz

# include "system.h"# include "alt_types.h"# include "io.h"
//#include "define.h"
# define MODE_REG       0x00
# define STATUS_REG     0x04
//#define STATUS_REG     0x01
# define START_REG      0x08
//#define START_REG      0x02
# define DPS_REG     0x18
//#define DPS_REG     0x06
# define KEY0 0# define KEY1 1# define KEY2 2# define KEY3 3
# define LED9 3# define LED8 2# define LED7 1# define LED6 0
volatile alt_u32 tmp_data = 0;
int main(void)
{
alt_u32 pio_reg = 0;
alt_u32 button = 0;
alt_u32 status = 0;
alt_u8 button_pressed=0;
alt_u8 phase_shift=0;
while(1){
//test
    pio_reg |= (1<<LED6);
    IOWR_32DIRECT(PIO_LEDS_BASE,0,pio_reg);
    button = IORD_32DIRECT(PIO_BUTTONS_BASE,0);
    if (~(button) & (1<<KEY0)) {    //pressed
        pio_reg |= (1<<LED7);
        IOWR_32DIRECT(PIO_LEDS_BASE,0,pio_reg);
        if (phase_shift != 1)  { //doing phsft
            phase_shift = 1;
            IOWR_32DIRECT(PLL_RECONFIG_BASE,MODE_REG,0x1);
            IOWR_32DIRECT(PLL_RECONFIG_BASE,DPS_REG,0b1000010000000000001000);//positive shift c1 = 8 shifts
            IOWR_32DIRECT(PLL_RECONFIG_BASE,START_REG,0x1);
            tmp_data = IORD_32DIRECT(PLL_RECONFIG_BASE,0x0C); // tpm_data = 0 here
            tmp_data++;                                                             // tmp_data = 1 here
            do {
                status = IORD_32DIRECT(PLL_RECONFIG_BASE,STATUS_REG);//read status
                pio_reg |= (1<<LED9);
                IOWR_32DIRECT(PIO_LEDS_BASE,0,pio_reg);
            }while(status != 0x01);
            pio_reg &= ~(1<<LED9);
            IOWR_32DIRECT(PIO_LEDS_BASE,0,pio_reg);
        }
    } else {
        pio_reg &= ~(1<<LED7);
        IOWR_32DIRECT(PIO_LEDS_BASE,0,pio_reg);
        phase_shift = 0;
    }
}
}