TM4C1294NCPDT: SPI communication issues with LIS3DHTR

I am trying to comunicate by SPI a TM4C1294 with a LIS3DHTR, but I have some trouble.

I am using a custom board and I have connected the acelerometer to SSI0 port, I have a cc1101 device connected to this port also.

This is the SPI initialization code I am using:

void ACC_config(uint32_t clock,int16_t *acc1,int16_t *acc2,int16_t *acc3, int16_t *inc1,int16_t *inc2,int16_t *inc3)
{
sysclock=clock;
ACC1=acc1;
ACC2=acc2;
ACC3=acc3;
INC1=inc1;
INC2=inc2;
INC3=inc3;

SysCtlPeripheralEnable(SYSCTL_PERIPH_SSI0);

while(!SysCtlPeripheralReady(SYSCTL_PERIPH_SSI0))
{
}

SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);

GPIOPinTypeGPIOOutput(GPIO_PORTA_BASE, GPIO_PIN_3);
GPIOPinWrite(GPIO_PORTA_BASE, GPIO_PIN_3, GPIO_PIN_3);

/* IO port is configured as SSI function */
GPIOPinConfigure(GPIO_PA2_SSI0CLK);
GPIOPinConfigure(GPIO_PA3_SSI0FSS);
GPIOPinConfigure(GPIO_PA4_SSI0XDAT0);
GPIOPinConfigure(GPIO_PA5_SSI0XDAT1);

/* Set the mode of the SSI IO port */
GPIOPinTypeSSI(GPIO_PORTA_BASE, GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_5);

SSIDisable(SSI0_BASE);

/* SSI configuration Mode 3 (Polarity = 1 Phase = 1) Master mode Speed ​​1MHz Data length 8 bits*/
//SSIConfigSetExpClk(SSI0_BASE, sysclock, SSI_FRF_MOTO_MODE_1, SSI_MODE_MASTER, 100000, 16);
SSIConfigSetExpClk(SSI0_BASE, sysclock, SSI_FRF_MOTO_MODE_2, SSI_MODE_MASTER, 100000, 8);
/* Enable SSI0 */
SSIEnable(SSI0_BASE);
uint32_t pui32DataRx;
while(SSIDataGetNonBlocking(SSI0_BASE, &pui32DataRx))
{
}

lis3dh_configure();

}

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Where clock is:

g_ui32SysClock = MAP_SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ | SYSCTL_OSC_MAIN | SYSCTL_USE_PLL | SYSCTL_CFG_VCO_480), 120000000);

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

These are the read/write functions I am using:

void lis3dh_read_xyz(int16_t *x, int16_t *y, int16_t *z)
{

//uint8_t ansbuf[2];

lis3dh_read_reg(0x20,&reg1);
lis3dh_read_reg(0x23,&reg4);

lis3dh_read_reg(LIS3DH_WHO_AM_I, &id);
lis3dh_read_reg(LIS3DH_OUT_X_L, &x_l);
lis3dh_read_reg(LIS3DH_OUT_X_H, &x_h);

lis3dh_read_reg(LIS3DH_OUT_Y_L, &y_l);
lis3dh_read_reg(LIS3DH_OUT_Y_H, &y_h);

lis3dh_read_reg(LIS3DH_OUT_Z_L, &z_l);
lis3dh_read_reg(LIS3DH_OUT_Z_H, &z_h);

*x= (x_h <<8 | x_l); // 12 bit data
*y= (y_h <<8 | y_l); // 12 bit data
*z= (z_h <<8 | z_l); // 12 bit data

}

void lis3dh_read_reg(uint8_t addr, uint8_t *DataRead)
{
uint8_t dummy;
uint8_t operation;
uint8_t byte;
uint32_t ui32DummyData;
uint32_t address;
operation = LIS3DH_SINGLE_READ;

lis3dh_CsStart();

address=(operation|addr);
// TX
while (SSIBusy(SSI0_BASE)) ;
SSIDataPut(SSI0_BASE, (address)); //Puts a data element into the SSI transmit FIFO

// WAIT DONE
while (SSIBusy(SSI0_BASE));

SSIDataGet(SSI0_BASE, &dummy);

SSIDataPut(SSI0_BASE, (0x00)); //Puts a data element into the SSI transmit FIFO
// WAIT DONE
while (SSIBusy(SSI0_BASE));
SSIDataGet(SSI0_BASE, &byte);

readed= byte;
*DataRead=readed;
lis3dh_CsStop();
}

void lis3dh_mult_read_reg(uint8_t addr, uint8_t *DataRead, uint8_t len)
{
uint8_t operation;
uint8_t address;
uint8_t byte;
uint8_t dummy;
if(len > 1){
operation = LIS3DH_MULTIPLE_READ;
}else{
operation = LIS3DH_SINGLE_READ;
}

lis3dh_CsStart();
//SysCtlDelay(5);
address=operation|addr;

while (SSIBusy(SSI0_BASE));
SSIDataPut(SSI0_BASE, address); //Puts a data element into the SSI transmit FIFO

// WAIT DONE
while (SSIBusy(SSI0_BASE));
SSIDataGet(SSI0_BASE, &dummy);

uint8_t i;
for(i=0; i<len; i++)
{
// TX DUMMY 0s
SSIDataPut(SSI0_BASE, (0x00));

// WAIT DONE
while (SSIBusy(SSI0_BASE));
// RX
SSIDataGet(SSI0_BASE, &byte);

DataRead[i] = byte;
}
//SysCtlDelay(5);
lis3dh_CsStop();
}

void lis3dh_write_reg(uint8_t addr, uint8_t DataWrite)
{
uint8_t operation = LIS3DH_SINGLE_WRITE;
uint32_t ui32DummyData;
uint32_t address;
uint8_t dummy;

lis3dh_CsStart();
//SysCtlDelay(5);
address=(operation|addr);
// TX OP + ADDR
while (SSIBusy(SSI0_BASE)) ;
SSIDataPut(SSI0_BASE, address); //Puts a data element into the SSI transmit FIFO
// WAIT DONE
while (SSIBusy(SSI0_BASE));
SSIDataGet(SSI0_BASE, &dummy);

SSIDataPut(SSI0_BASE, DataWrite); //Puts a data element into the SSI transmit FIFO

// WAIT DONE
while (SSIBusy(SSI0_BASE));
SSIDataGet(SSI0_BASE, &dummy);

//SysCtlDelay(5);
lis3dh_CsStop();

}

Any suggestion?

Thanks in advance.