RM41L232: LINport pins configured as GPIO

Hello Billy,

There is nothing special about the LIN pins. Simpy configure them as GPIO in Halcogen as shown below

Once the source is generated, you would need to call the linInit function in main and then use the GPIO function to set and clear the bits associated with the LINTX and LIN RX pins.

i.e., in main do the following

main()

{

   linInit(); // initialize the LIN module; specifically, initializes LINTX and RX pins in non-funcitonal mode, DIR=output, Pullup enabled, no open drain, etc

while(1)

   {

        // Toggle LINTX pin

        gioSetBit (linPORT, PIN_LIN_TX);

        //Toggle LINRX pin

        gioSetBit (linPORT, PIN_LIN_RX);

 // ************* insert some delay or call gioSetBit from within an RTI interrupt after initializing and setting up to generate some sort of pattern on the LIN TX and RX pins

   }

Since the pin control registers of the LIN port only have the TX and RX pins in them with the rest being reserved, you should also be able to replicate the blinky example and call the port functions using the linPORT as the base address.