PGA411Q1EVM: External control of the PGA411-EVM with F28335 Control Card

Part Number: PGA411Q1EVM

Hello,

i want to control the PGA411 EVM  with an external microcontroller. So i change the Jumper 3 to 5/6 for external Control. Then i connected the Pins of Jumper11 with the Controller. For Evaluation i took the FAULTRES Pin to GND to ignore the faults.

Then i tried to communicate with the PGA. I sent a 32 bit message like 0x1F001000 for example to read one of the DEV_STAT Register. But i always receive a message like 0x46. On the scope are the NCS, SCK, and the SDI Pins right. I should receive the address bits and a dummy data from the SDO.

I use the Software guide of the pga for programming. My main function is actually really simple. Is there any additional Thing that i forgot or something which is wrong.

Maybe there is anyone with experience in that issue who can help me.

void main(void)
{
 // Initialize System Control:
 // PLL, WatchDog, enable Peripheral Clocks
    InitSysCtrl();

 //User Code begin
    static Uint32 read[10];
    int i;

    pga411_Init();
    DELAY_US(10000);

    while(1)
    {
       for(i=0; i<10; i++)
       {
        read[i] = uc_spi_xmit(0x1F010000);
       }
    }
 //User Code end
}