LM4F120 SSI1 Configuration Help

I have a problem about configuration of LM4F120 launchpad for SSI1. I will not use driverlib for my project so I have to configure the register with "lm4f120h5qr.h". However, I couldnt figure out why I cannot receive Clock pulses although I have already configure regarding register. I can see SS1 TX data throught the logic analyzer but I cannot have the SSI1 CLK pulses. I have other function in my project but none of them are related with Port F, so I shouldnt have problem due to sharing resources. When I activate other function in the main function, I cannot receive SSI1 TX data anymore also. Here are the codes that I have tried to write:

void Max7219_Init(void){ volatile uint32_t delay;
  SYSCTL_RCGCSSI_R |= 0x02;  // activate SSI1
  delay = SYSCTL_RCGCSSI_R;
  SYSCTL_RCGCGPIO_R |= 0x20; 						// activate port F
  delay = SYSCTL_RCGCGPIO_R;
  GPIO_PORTF_AFSEL_R |= 0x0E;           // enable alt funct on PF1,2,3
  GPIO_PORTF_DEN_R |= 0x0E;             // enable digital I/O on PF1,2,3
                                        // configure PF1,2,3 as SSI                          
  GPIO_PORTF_PCTL_R = (GPIO_PORTF_PCTL_R&0xFFFF000F)+0x00002220;
  GPIO_PORTF_AMSEL_R &= ~0x0E;          // disable analog functionality on PF1,2,3
  

  SSI1_CR1_R &= ~SSI_CR1_SSE;           // disable SSI
  SSI1_CR1_R &= ~SSI_CR1_MS;            // master mode
	SSI1_CC_R = (SSI1_CC_R&~SSI_CC_CS_M)+SSI_CC_CS_SYSPLL;
                                        // clock divider for 3.33 MHz SSIClk (50 MHz PLL/14)
                                        // SysClk/(CPSDVSR*(1+SCR))
                                        // 50/(14*(1+0)) = 3.33 MHz (slower than 4 MHz)
  SSI1_CPSR_R = (SSI1_CPSR_R&~SSI_CPSR_CPSDVSR_M)+14;
  SSI1_CR0_R &= ~(SSI_CR0_SCR_M |       // SCR = 0 
                  SSI_CR0_SPH |         // SPH = 0
                  SSI_CR0_SPO);         // SPO = 0
                                        // FRF = Freescale format
  SSI1_CR0_R = (SSI1_CR0_R&~SSI_CR0_FRF_M)+SSI_CR0_FRF_MOTO;
                                        // DSS = 16-bit data
  SSI1_CR0_R = (SSI1_CR0_R&~SSI_CR0_DSS_M)+SSI_CR0_DSS_16;
  SSI1_CR1_R |= SSI_CR1_SSE;            // enable SSI

}

int main(){
  PLL_Init();
  PortB_Init();  //column port
  PortE_Init();  //row port
  PortC_Init();
  PortA_Init();  //scrolling speed control pin
  Timer0A_Init(&UserTask0, 10000);
  Timer1A_Init(&UserTask1, 3000);  
  EnableInterrupts();
  
  Max7219_Init();
  
  while(1){

  //ShiftRightToLeft("UGUR BOLAT    ");
  while((SSI1_SR_R&SSI_SR_TNF)==0){};// wait until room in FIFO
  SSI1_DR_R = 0xFFFF;
}    
}		 

First figure, when I disable the ShiftRightToLeft function, Second one is when I enable the function. This is what I get.