BOOSTXL-DRV8305EVM: Changing DRV 8305 Gate driver parameters through the program

Part Number:BOOSTXL-DRV8305EVM

HI,

I am engaged in a project which we use piccolo launchXL-F28027F instaspin module with BOOSTXL-DRV8305EVM driver board. I would like to set the gate driver configuration data through the program using  DRV8305_SPI. I am trying to change the dead time as follows:

gMotorVars.Flag_enableSys = true;
gDrvSpi8305Vars.ManWriteCmd =1;
gDrvSpi8305Vars.ManWriteAddr=0x7;
gDrvSpi8305Vars.ManWriteData=100;

I can see some variables change in the watch window but the CTRL_REG_07 is not updated. The question is how can I set the control register values of DRV8305 correctly through the program?

Any help is greatly appreciated!

Thanks