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CCS: TMS570LC4357 - Startup ESM Group 3 error

MINWOO LIM
Expert 1200 points
Other Parts Discussed in Thread: TMS570LC4357, HALCOGEN

Tool/software: Code Composer Studio

I use TMS570LC4357. I have questions about HL_sys_startup.c code.

I want to use Ti Safety library. But I show this code.

       /* Check if there were ESM group3 errors during power-up.
         * These could occur during eFuse auto-load or during reads from flash OTP
         * during power-up. Device operation is not reliable and not recommended
         * in this case. */
        if ((esmREG->SR1[2]) != 0U)
        {
           while(1); //ESM group3 error
        }

I find the this problem occurrred when power on/off frequently. So, i do power on/off again to react the chip.

Moreover, I find this code is used to every firmware which is generated by HAlCoGen (it means default code).

It is impossible to reboot by this error, when this chip is used in product. I want to know more detail about this problem.

1. Why this problem is occurred?

    - I understand the some peripharal power sequence is distorted sometimes. It is occurred in hardware. Is it impossible to block this problem?

2. When this problem is occurred, why do hardware reset?

   - if the firmware is boot up as ignored this problem, what problems can happen? 

3. When this problem is occurred, it is no problem that just do reset by software.

  - I pass the error by reset which based on Ti safety library. Would you confirm this way is alright?

 * HL_sys_startup.c file / GREEN color is new inserted code

(1) In _C_int00 function

    resetReason = SL_Init_ResetReason();
    switch(resetReason)
    {

        case RESET_TYPE_POWERON:
        case RESET_TYPE_DEBUG:
        case RESET_TYPE_EXTRST:
        case RESET_TYPE_EXTRST_NERROR:
        case RESET_TYPE_SWRST:

......

systemInit();

        if ((esmREG->SR1[2]) != 0U) {
            resetReason = RESET_ERROR;
        }

....

break;

// switch function finish

....

if((RESET_TYPE_DEBUG != resetReason) && (RESET_ERROR != resetReason))

(2) in after_STC function

    _cacheEnable_();

/* USER CODE BEGIN (24) */
/* USER CODE END */


/* USER CODE BEGIN (25) */
    debug_printf( "reset type = %d \n\r",resetReason);
    if (resetReason == RESET_ERROR){
        debug_printf("\033[1;31mSystem Failure detected - Power Sequence error\n\rError cannot be cleared(keep going)\n\r\033[m");
        //regulator enter the active state and reset will be caused by error forcing
        systemREG1->SYSECR |= ((uint32)0x03u<<14);
    }
/* USER CODE END */

        /* initialize global variable and constructors */
    __TI_auto_init();

Regards,

Minwoo

  • 0
    Expert 1200 points

    Tool/software: Code Composer Studio

    I use Ti Safety Library(version 2.4.0). I have question in HL_sys_startup.c code.

    In HL_sys_startup.c, the line 202 :

            if ((esmREG->SR1[2]) != 0U)
            {
               while(1); //ESM group3 error
            }

    I test when this code is act. When power on/of is occurred physically (It means ah Plug on/off by hand).

    My questions are follows :

      1. Why is this code inserted?
      2. If i use this chip by using Ti Safety Library when power on/off is occurred state. Then, how can i pass or overcome this problem?

    Regards,

    Minwoo

  • 0 in reply to MINWOO LIM
    TI__Guru** 116170 points

    Can you please check if you are running into a issue that is similar to what is reported here:

    https://e2e.ti.com/support/microcontrollers/hercules/f/312/t/379288

    you can check the ESM Group3 mapping in the data sheet ESM section. The error could be indicating power sequencing/timing issues on your custom board. Do you see the same issue on TI evaluation platform as well?

    Regards,

    Rahul

  • 0 in reply to Rahul Prabhu
    TI__Guru** 116170 points

    Please close this thread since you have a similar thread open here on this topic:

    https://e2e.ti.com/support/microcontrollers/hercules/f/312/t/847243

  • 0 in reply to Rahul Prabhu
    Expert 1200 points

    Hello Rahul,

    I test the Ti evaluation board(Hercules Safety MCU Development Kit TMS570 MCU). This board also occur this problem.

    I check the linked site, but that is applied TMS570LS3137 ZWT and RM48L952ZWT. The cause (flashWREG->FEDACCTRL1 = 0x000A060AU;) is not in TMS570LC4357 chip.

    My test state as follows,

    - Hardware : TMS570 evaluation Kit.

    - Software : Ti Safety library(2.4.0) / Moreover, I use HALCoGen(v04.07.01)

    When the code generated by HALCoGen include the ESM block code :

            /* Check if there were ESM group3 errors during power-up.
             * These could occur during eFuse auto-load or during reads from flash OTP
             * during power-up. Device operation is not reliable and not recommended
             * in this case. */
            if ((esmREG->SR1[2]) != 0U)
            {
               while(1); //ESM group3 error
            }

    I want to know how I can pass or block this code when power on/off test.(Additionally, I just block this code same problem is occurred.)

    I want to keep this thread and close the similar thread : https://e2e.ti.com/support/microcontrollers/hercules/f/312/t/847243

    Regards,

    MInwoo