i.MX Processorsのトピック回复： How to debug wdog in imx-93

How to debug wdog in imx-93

leoX — Tue, 15 Jul 2025 05:36:28 GMT

I enabled the debug bit in the wdog CS register, but when I debug with J-Link and set breakpoints, the wdog still times out and triggers a reset. How can I resolve this issue? Additionally, I used the tstmr, but the timestamp continues to update after I set a breakpoint, and the debug bit in the system counter's CNTCR register also has no effect. Does the i.MX-93 have a global debug switch that I might have overlooked? Thank you for your response!

Re: How to debug wdog in imx-93

Zhiming_Liu — Tue, 15 Jul 2025 07:48:30 GMT

Hi,

Can you share the modification based on sdk example?

Best Regards,
Zhiming

回复： How to debug wdog in imx-93

leoX — Tue, 15 Jul 2025 07:57:35 GMT

WDOG32_GetDefaultConfig(&wdg_config);

wdg_config.testMode = kWDOG32_UserModeEnabled;

wdg_config.enableInterrupt = true;

wdg_config.clockSource = kWDOG32_ClockSource1;

wdg_config.prescaler = kWDOG32_ClockPrescalerDivide1;

wdg_config.timeoutValue = 9600U;

wdg_config.workMode.enableDebug = true;

(void)WDOG32_Init(wdog32_base, &wdg_config);

SYS_CTR_CONTROL->CNTCR |= 0x02U;

This is my config code, the last is sctr config.

Best Regards

回复： How to debug wdog in imx-93

Zhiming_Liu — Wed, 16 Jul 2025 05:46:09 GMT

Hi @leoX

Can you share where you set the breakpoint? I set here and don't see watchdog reset.

Best Regards,
Zhiming

回复： How to debug wdog in imx-93

leoX — Wed, 16 Jul 2025 06:15:58 GMT

I set up a watchdog in my project, using wdog1 to monitor the operation of m33. However, even when I set the debug bit of the wdog cs to 1 and use JLink to debug with breakpoints, a reset still occurs (entering my watchdog interrupt function).

Best Regards

回复： How to debug wdog in imx-93

Zhiming_Liu — Thu, 17 Jul 2025 01:03:27 GMT

Hi @leoX

Can you add tstmr based on the wdog demo and then try to reproduce it?

At least the debug function can work on wdog demo, maybe there are some usage issues. That's better to provide a simple demo that can reproduce it on my side.

Best Regards,
Zhiming

回复： How to debug wdog in imx-93

leoX — Thu, 17 Jul 2025 02:44:50 GMT

Hi. Zhiming

I have tried the demo in single M33 mode, and the debug function didn't work . I only set the debug bit of CS reg to 1, is that enough?

Best Regards.

回复： How to debug wdog in imx-93

leoX — Thu, 17 Jul 2025 03:06:04 GMT

WDOG32_GetDefaultConfig(&config);

config.testMode = kWDOG32_UserModeEnabled;

config.clockSource = kWDOG32_ClockSource0;

config.prescaler = kWDOG32_ClockPrescalerDivide256;

config.windowValue = 6000U;

config.timeoutValue = 60000U;

config.workMode.enableDebug = true;

PRINTF("\r\n----- Refresh test start -----\r\n");

/* Refresh test in none-window mode */

PRINTF("----- None-window mode -----\r\n");

config.enableWindowMode = false;

config.enableWdog32 = true;

WDOG32_Init(wdog32_base, &config);

#if defined(FSL_FEATURE_WDOG_HAS_ERRATA_010536) && FSL_FEATURE_WDOG_HAS_ERRATA_010536

/* Becaues of ERR010536, application need to wait at least 4 LPO clock

* after WDOG32_Init before any other WDOG32 operations.

Wdog32Errata010536();

#endif

for (int i = 0; i < 10; i++)

{

for (;;)

{

if (1000 * i < WDOG32_GetCounterValue(wdog32_base))

{

PRINTF("Refresh wdog32 %d time\r\n", i);

WDOG32_Refresh(wdog32_base);

break;

}

This is my code based on the wdog demo, could you show me yours? Thanks!

Best Regards.

回复： How to debug wdog in imx-93

Zhiming_Liu — Thu, 17 Jul 2025 03:21:06 GMT

Hi @leoX

I add these two lines and set breakpoint in WDOG32_Refresh

Best Regards,
Zhiming

回复： How to debug wdog in imx-93

leoX — Thu, 17 Jul 2025 05:25:14 GMT

Hi. Zhiming

I modified the code as yours and set the boot mode to 1010 from M33 core , but it didn't work.

Best Regards.

回复： How to debug wdog in imx-93

Zhiming_Liu — Fri, 18 Jul 2025 01:54:44 GMT

Hi,

Can you try the a53 download mode or m33 download mode ? And the previous test is based on Debug , not Attach.

Best Regards,
Zhiming

回复： How to debug wdog in imx-93

leoX — Fri, 18 Jul 2025 05:15:58 GMT

Hi,

Could you explain it more clearly? Do you mean using the serial download mode? Thanks.

Best Regards.

回复： How to debug wdog in imx-93

Zhiming_Liu — Mon, 21 Jul 2025 00:48:33 GMT

Hi @leoX

Yes, currently i am using coterx-a download mode.

Best Regards,
Zhiming

回复： How to debug wdog in imx-93

leoX — Tue, 22 Jul 2025 01:52:35 GMT

Hi Zhiming,

Do you mean using the uuu command to download the bin file to the m core?

Best Regards.

回复： How to debug wdog in imx-93

Zhiming_Liu — Tue, 22 Jul 2025 01:59:32 GMT

Hi @leoX

No, use Debug option in vscode with JLink.

Best Regards,
Zhiming

回复： How to debug wdog in imx-93

leoX — Tue, 22 Jul 2025 02:58:31 GMT

Hi Zhiming,

I used the same way to debug, but it didn't work. Now I suspect that the mcu didn't receive the accurate debug information. Is there a general Debug switch to control it? If not, it might be a problem with the jlink debugger.

Best Regards.

回复： How to debug wdog in imx-93

Zhiming_Liu — Tue, 22 Jul 2025 03:12:24 GMT

Hi @leoX

If you are using EVK ,please check this sw101, make sure it's same.

If you are using custom board, need to check the JTAG pins.

Best Regards,
Zhiming

回复： How to debug wdog in imx-93

leoX — Tue, 22 Jul 2025 07:43:01 GMT

Hi Zhiming

I tried it on EVK and my board, and the reset occured on two boards, and I'd like to confirm if you can resume running from the breakpoint after stopping at it? I was also able to run to the breakpoint, but when I reset at the breakpoint, I couldn't continue running

回复： How to debug wdog in imx-93

Zhiming_Liu — Wed, 23 Jul 2025 02:02:51 GMT

Hi @leoX

The refresh cycle cannot be stopped. If it is stopped, the counter will stop being cleared. When the counter is full, an interrupt is triggered to reset it. So you should not set breakpoint in that loop.

Best Regards,
Zhiming

回复： How to debug wdog in imx-93

leoX — Wed, 23 Jul 2025 03:27:01 GMT

Hi Zhiming

That means when the breakpoint halts the mcu, the couter is still running？

Best Regards.