MSPM0G1507: Enabling GPIO Pin PA8 output hangs the application only when it is uploaded through bootloader

Hi,

What pin are you using to invoke the BSL?

-Matthew

Hi Matthew, my apology for the late reply.
I don't use GPIO to invoke the BSL. The BSL is at 0x00000000 so the BSL will be invoked whenever the power resets. I make it in this way so that BSL will be invoked even if the application is hanged and watchdog triggers the power reset. 

Could you describe what happens when the code hangs?

Would you be able to share your code?

Hi Matthew, 

sorry that I can't share the full application code,

but this is the GPIO Init function (which I implemented in the application code instead of configuring in SysCfg order to find out the root cause.)

void Appl_Output_GPIO_Init ()
{
    DL_GPIO_initDigitalOutputFeatures(IOMUX_PINCM19,
		 DL_GPIO_INVERSION_DISABLE, DL_GPIO_RESISTOR_NONE,
		 DL_GPIO_DRIVE_STRENGTH_HIGH, DL_GPIO_HIZ_DISABLE);

    DL_GPIO_initDigitalOutputFeatures(IOMUX_PINCM14,
		 DL_GPIO_INVERSION_DISABLE, DL_GPIO_RESISTOR_NONE,
		 DL_GPIO_DRIVE_STRENGTH_LOW, DL_GPIO_HIZ_ENABLE);

    DL_GPIO_initDigitalOutput(IOMUX_PINCM19);

    DL_GPIO_initDigitalOutput(IOMUX_PINCM1);

    DL_GPIO_initDigitalOutput(IOMUX_PINCM10);

    DL_GPIO_initDigitalOutput(IOMUX_PINCM8);

    DL_GPIO_initDigitalOutput(IOMUX_PINCM11);

    DL_GPIO_clearPins(GPIOA, DL_GPIO_PIN_8 |
    	DL_GPIO_PIN_7 |
		DL_GPIO_PIN_0 |
		DL_GPIO_PIN_5 |
		DL_GPIO_PIN_3 |
		DL_GPIO_PIN_6);
    DL_GPIO_setPins(GPIOA, DL_GPIO_PIN_7);


    DL_GPIO_enableOutput(GPIOA, //DL_GPIO_PIN_8 |
    	DL_GPIO_PIN_7 |
		DL_GPIO_PIN_0 |
		DL_GPIO_PIN_5 |
		DL_GPIO_PIN_3 |
		DL_GPIO_PIN_6);


}

As you see in the above function, If I comment out "enabling output" pin 8 as in line num 30 in the above code, the application runs successfully which means the device can shows the measured data on the OLED Monochrome Display continuously.

But if I uncomment back this function, the device's OLED will show nothing.

To verify this point, I added blinking led before this function is invoked and I can see the led blink.

But if I put the blinking led function below this GPIO_Init , then I can't even see the blinking led when the device is powered up. 

Hi,

Can you show me how you are jumping to your application code?

-Matthew

Hi Matthew, 

void CMD_API_startApplication(void)
{
            //Check Marker Byte and Branch to app only it's correct
            if( (*(uint8_t*)(APP_UPDATE_MARKER_BYTE_ADDRESS))==APP_UPDATE_MARKER_BYTE)
            {
                /* Start application */
                DL_SYSCTL_resetDevice(SYSCTL_RESETLEVEL_LEVEL_BOOT);     
                /* Wait until reset happens */
                while (1)
                    ;
            }
}

Make sure that your VTOR is pointing to the start of your application memory. Here is an example that shows how: 

dev.ti.com/.../node

Hi Matthew, 

thanks so much for the reply. 
I actually copy and paste the startup file into the project directory, uncheck "Startup file Reference" in Syscfg file and this is what I added in the ResetHandler function in the startup .c file.

/* Forward declaration of the default fault handlers. */
/* This is the code that gets called when the processor first starts execution */
/* following a reset event.  Only the absolutely necessary set is performed,   */
/* after which the application supplied entry() routine is called.  Any fancy  */
/* actions (such as making decisions based on the reset cause register, and    */
/* resetting the bits in that register) are left solely in the hands of the    */
/* application.                                                                */
void Reset_Handler(void)
{
    /* Jump to the ticlang C Initialization Routine. */
    SCB->VTOR = (volatile uint32_t) interruptVectors;
    __asm(
        "    .global _c_int00\n"
        "    b       _c_int00");
}

and this is the .cmd file I used for the application.

/*****************************************************************************

  Copyright (C) 2023 Texas Instruments Incorporated - http://www.ti.com/

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions
  are met:

   Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.

   Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the
   distribution.

   Neither the name of Texas Instruments Incorporated nor the names of
   its contributors may be used to endorse or promote products derived
   from this software without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*****************************************************************************/
-uinterruptVectors
--stack_size=512

MEMORY
{
    INT_VECS		(RX)  : origin = 0x00002000, length = 0x000000C0
    FLASH           (RX)  : origin = 0x000020C0, length = 0x0001DF40
    SRAM            (RWX) : origin = 0x20200000, length = 0x00008000
    BCR_CONFIG      (R)   : origin = 0x41C00000, length = 0x00000080
    BSL_CONFIG      (R)   : origin = 0x41C00100, length = 0x00000080

}

SECTIONS
{
    .intvecs:   > INT_VECS
    .marker:  > 0x0001FFF0
    .text   : palign(8) {} > FLASH
    .const  : palign(8) {} > FLASH
    .cinit  : palign(8) {} > FLASH
    .pinit  : palign(8) {} > FLASH
    .rodata : palign(8) {} > FLASH
    .ARM.exidx    : palign(8) {} > FLASH
    .init_array   : palign(8) {} > FLASH
    .binit        : palign(8) {} > FLASH
    .TI.ramfunc   : load = FLASH, palign(8), run=SRAM, table(BINIT)

    .vtable :   > SRAM
    .args   :   > SRAM
    .data   :   > SRAM
    .bss    :   > SRAM
    .sysmem :   > SRAM
    .stack  :   > SRAM (HIGH)   

    .BCRConfig  : {} > BCR_CONFIG
    .BSLConfig  : {} > BSL_CONFIG
}

I locate the application interrupt vector at 0x00002000 in the cmd file which is where the correct application exists.

Has your issue been resolved? (I was out of office for some time, so my apologies for the delay)