AWR1243: About SPI clock frequency in MMWAVE-DFP

Hi Hiroyuki-san,

mmWavelink_example uses pre-built library (mmwl_port_ftdi.lib) to communicate with AWR1243 over SPI (using onboard FTDI chip: SPI to USB converter)

Although this library source code is now provided in mmWave Studio v2.1 which you import to mwmavelink_example visual studio project and modify as required.

Add 'C:\ti\mmwave_studio_02_01_00_00\mmWaveStudio\ReferenceCode\FTDILib\SourceCode\vs\mmwl_port_ftdi.vcxproj' to mmwavelink_example VS solution.

FTDI SPI Clock is being set mmwl_port_ftdi.c->rlsInitSpiPort() function, you need to change the divider high/low value to change the SPI clock (max 10MHz).

Change additional dependencies under linker->input for the updated library file in the mmwavelink_example project.

Regards,

Jitendra

Hi Jitendra,

Thank you for the detailed explanation.
I could add mmwl_port_ftdi.vcxproj to mmwavelink_example VS solution and changed additional dependencies.
Then, I changed the SPI Clock divide setting of rlsInitSpiPort () function.

However, after that, I don't know how to call the functions of mmwl_port_ftdi.c to make SPI communication.

I referred to thread "AWR1243BOOST: AWR1243P Cascade, DCA1000 EVM, Datapipeline".
I changed function MMWL_powerOnMaster (mmwavelink_example.c)

   clientCtx.comIfCb.rlComIfOpen = MMWL_spiOpen;
to
  clientCtx.comIfCb.rlComIfOpen = rlsCommOpen;

And then, I build this code, I get error "LNK2005 _rls_spiDeviceName is already defined in mmwlstudio.lib".
Is this approach correct?
Could you provide me a code example of mmwavelink_example that uses mmwl_port_ftdi.c for SPI communication?

Regards,
Hiroyuki