AWR6843AOP: System freezing Whe CAN Interrupts in the middle of CANFD_Init

Intae Cho

Prodigy 60 points

Part Number: AWR6843AOP

Hello TI Team.

I got some issue using mmwave_sdk_03_05_00_04 API.

After the ECU turn on, I put the many can singals that busload is 50%~100%.

but it's okay. CAN and system runs well.

But While put many can signal(busload 25%~100%)s into CAN LINE,

and then I turn on the system(Battery ON) it stops at the middle of CANFD_Init() .

So I tried many things, but I got no solution unitl now.

Event I tried HwiP_disable() -> CANFD_Init() -> HwiP_restore(), but it doesn't work.

I guess many CAN interrupts are cause of this.

Can Have some idea to solve this?

over 3 years ago

0 Ishita Kochar over 3 years ago

TI__Mastermind 31680 points

Hello Intae,

Thankyou for reaching out.

Due to the U.S. Thanksgiving holidays, we're running a little low on support this week. Please expect a response on this concern by next week.

We apologize for the inconvenience caused and Thanks for understanding.

Regards,

Ishita

0 Sudharshan KN over 3 years ago in reply to Ishita Kochar

TI__Genius 10550 points

Hi,

Can you please share the code snippet to review the flow?

Regards,

Sudharshan K N

0 Sudharshan KN over 3 years ago in reply to Sudharshan KN

TI__Genius 10550 points

Hi,

Also is the CAN init already performed as part of the SBL init and also performed as part of the application code? If yes, can we deinitialize teh CANFD in BSS when the application code is started? Please let me know.

Regards,

Sudharshan K N

0 Intae Cho over 3 years ago in reply to Sudharshan KN

Prodigy 60 points

Yes CANFD Init perfomed in the SBL init and perfomed again in the application initialize.

Now I am using below code for workaround in applicaton part.

/* 20211130 interrupt clear & disable for preventing the stuck at CANFD_init() */
HwiP_clearInterrupt((uint32_t)SOC_XWR68XX_MSS_MCAN_LVL0_INT); /* 35U from sys_common_xwr68xx_mss.h */
HwiP_disableInterrupt((uint32_t)SOC_XWR68XX_MSS_MCAN_LVL0_INT); /* 35U from sys_common_xwr68xx_mss.h */

Cfg_Can_HWinit(mcb);

/* Initialize the CANFD driver. */
canHandle = CANFD_init(0, mcanCfgParams, &errCode);
if (canHandle == NULL) {
CLI_write("Error: CANFD Module Initialization failed [Error code %d]\n", errCode);
return ;
}

Is it good for workaound?

Can you give me some better idea?

And I found question about CANFD init in E2E

https://e2e.ti.com/support/sensors-group/sensors/f/sensors-forum/1001104/iwr6843-canfd_init-fails-after-canfd_deinit-follow-up

Is it related with my question?

0 Sudharshan KN over 3 years ago in reply to Intae Cho

TI__Genius 10550 points

Hi,

The issues could be related.

In the code provided i do not see the deinit function? Is this done in a separate code? Please confirm.

Regards,

Sudharshan K N

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AWR6843AOP: System freezing Whe CAN Interrupts in the middle of CANFD_Init