1 Reply Latest reply on Mar 16, 2016 8:32 AM by samp

    Dynamic Configuration

    chiragmodesara_1567941

      i working on one project which has dynamic configuration.

         

      i used UART for communication...my uart is in base profile and other all module are in layer 1 and layer 2.

         

      Now i want to use ISR in UART..is that possible to use??? 

        • 1. Re: Dynamic Configuration
          samp

          Hello Chirag,

             

          It is possible to use the UART ISR. UART has two ISRs: one for Tx and another for Rx. Under the source files, you will find a file called UARTINT.asm.

             

          In this file find the label _UART_TX_ISR. Below this line you will find commented out text as shown below

             

           ;---------------------------------------------------
             ; Insert a lcall to a C function below this banner
             ; and un-comment the lines between these banners
             ;---------------------------------------------------
             
             ;PRESERVE_CPU_CONTEXT
             ;lcall _My_C_Function
             ;RESTORE_CPU_CONTEXT
             
             ;---------------------------------------------------
             ; Insert a lcall to a C function above this banner
             ; and un-comment the lines between these banners
             ;---------------------------------------------------

             

          You can un-comment the three lines as indicated above, and modify the lcall to point to your function handling Tx interrupts. Do provide a leading underscore for your function name. Note that your function is not strictly an ISR. It is a function which is called from an ISR, but will serve the purpose.

             

           

             

          Find the label  _UART_RX_ISR.Below this line you will find commented out text as shown below

             

             ;---------------------------------------------------
             ; Insert a lcall to a C function below this banner
             ; and un-comment the lines between these banners
             ;---------------------------------------------------
             
             ;PRESERVE_CPU_CONTEXT
             ;lcall _My_C_Function
             ;RESTORE_CPU_CONTEXT
             
             ;---------------------------------------------------
             ; Insert a lcall to a C function above this banner
             ; and un-comment the lines between these banners
             ;---------------------------------------------------
             ;@PSoC_UserCode_END@ (Do not change this line.)

             

          You can un-comment the three lines as indicated above, and modify the lcall to point to your function for handling Rx interrupts. Do provide a leading underscore for your function name. 

             

          Sampath