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PROCESSOR-SDK-TDAX: Is there a way to program the user Programmable LEDs in TIDEP-01017?


I'm using MMWCAS_DSP_EVM with Processor SDK Radar 3.08 and according to the User guide of the board, these LEDs(in Table) are user-programmable. Programmable LEDs in BoardI was wondering if I can get guidance on how to program these LEDs from the Radar SDK. I would greatly appreciate it. 

  • Hi,

    These LEDs are connected to GPIO expander output.

    The same GPIO expander is also configured in Bsp_boardTda2xxCascadeEnableSdAndEth() under ~\ti_components\drivers\pdk\packages\ti\drv\vps\src\boards\src\bsp_boardTda2xx.c.

    You can refer to that function to see how to configure the specific output of the GPIO Expander via I2C command.


  • Hi Stanley, 

    Thank you for the response. 

    We were able to run this example located in

    After modifying the slave address for the correct Port Expander (0x76 instead of 0x20), and were able to blink all those LEDs. 

    Although we had to modify the sample code based on the datasheet(configuring the ports to become output before switching them ON/OFF).