J722SXH01EVM: How to solve High Priority Interrupt error

Jenny

Prodigy 10 points

Part Number: J722SXH01EVM

Tool/software:

Hello,

I also encounter the same problem as

SK-AM62A-LP: AM62x: How to solve High Priority Interrupt error? - Processors forum - Processors - TI E2E support forums

My SDK is mcu_plus_sdk_j722s_11_00_00_12.

If I only do DebugP_log("hello! \r\n"); like this in main(), it works well. I can reload the program and debug it.

But if I create a task,At first run in the debug session, everything went perfectly smooth without any error. However, once I stop debugging and rebuidling the code, I got an unexpected error regarding High Priority Interrupt

The previous email said educing the memory section to 63 bytes as suggested.I don't unstersatnd how to do it.

Either we shoud modify the linker.cmd or do something? Could you give me more details. Thanks

Follow is my linker.cmd from the task_switch examples of the SDK

--ram_model
-heap 0x20000
-stack 0x20000
--args 0x1000
--diag_suppress=10068 /* to suppress no matching section error */
--cinit_compression=off
-e _c_int00_secure

#define DDR0_ALLOCATED_START 0xA3000000

#define C7X_ALLOCATED_START DDR0_ALLOCATED_START

#define C7X_RESOURCE_TABLE_BASE (C7X_ALLOCATED_START + 0x00100000)
#define C7X_IPC_TRACE_BUFFER (C7X_ALLOCATED_START + 0x00100400)
#define C7X_BOOT_BASE (C7X_ALLOCATED_START + 0x00200000)
#define C7X_VECTOR_BASE (C7X_ALLOCATED_START + 0x00400000)
#define C7X_DDR_SPACE_BASE (C7X_ALLOCATED_START + 0x00410000)

MEMORY
{
L2SRAM (RWX): org = 0x7E000000, len = 0x200000
DDR0_RESERVED: org = 0x80000000, len = 0x19800000 /* Reserved for A53 OS */
C7X_IPC_D: org = C7X_ALLOCATED_START, len = 0x00100000 /* 1MB DDR */
C7X_BOOT_D: org = C7X_BOOT_BASE, len = 0x400 /* 1024B DDR */
C7X_VECS_D: org = C7X_VECTOR_BASE, len = 0x4000 /* 16KB DDR */
C7X_CIO_MEM: org = C7X_DDR_SPACE_BASE, len = 0x1000 /* 4KB */
C7X_DDR_SPACE: org = C7X_DDR_SPACE_BASE+0x1000, len = 0x00BF0000-0x1000 /* 11.9MB - 4KB DDR */
}

SECTIONS
{
boot:
{
boot.*<boot.oe71>(.text)
} load > C7X_BOOT_D
.vecs > C7X_VECS_D
.secure_vecs > C7X_DDR_SPACE ALIGN(0x100000)
.text:_c_int00_secure > C7X_DDR_SPACE ALIGN(0x200000)
.text > C7X_DDR_SPACE ALIGN(0x100000)

.bss > C7X_DDR_SPACE /* Zero-initialized data */
RUN_START(__BSS_START)
RUN_END(__BSS_END)

.data > C7X_DDR_SPACE /* Initialized data */

.cinit > C7X_DDR_SPACE /* could be part of const */
.init_array > C7X_DDR_SPACE /* C++ initializations */
.stack > C7X_DDR_SPACE ALIGN(0x2000)
.args > C7X_DDR_SPACE
.cio > C7X_CIO_MEM
.const > C7X_DDR_SPACE
.switch > C7X_DDR_SPACE /* For exception handling. */
.sysmem > C7X_DDR_SPACE /* heap */

GROUP: > C7X_DDR_SPACE
{
.data.Mmu_tableArray : type=NOINIT
.data.Mmu_tableArraySlot : type=NOINIT
.data.Mmu_level1Table : type=NOINIT
.data.gMmu_tableArray_NS : type=NOINIT
.data.Mmu_tableArraySlot_NS : type=NOINIT
.data.Mmu_level1Table_NS : type=NOINIT
}

.benchmark_buffer: > C7X_DDR_SPACE ALIGN (32)

}

1 month ago

0 Sivadeep P R 1 month ago

TI__Expert 6770 points

Hi,

Are you trying a bare metal application? Which boot mode are you using?

Jenny said:
But if I create a task,At first run in the debug session, everything went perfectly smooth without any error. However, once I stop debugging and rebuidling the code, I got an unexpected error regarding High Priority Interrupt

Can you share the test code for the same?

Jenny said:
Either we shoud modify the linker.cmd or do something? Could you give me more details. Thanks

Let me check this and update you.

Regards,
Sivadeep

0 Jenny 1 month ago in reply to Sivadeep P R

Prodigy 10 points

Sivadeep P R said:
Are you trying a bare metal application? Which boot mode are you using?

I am trying code that just printf "hello", it's work.I tried both OSPI NOR BOOT MODE and SD BOOT MODE, but they are all failed.

Sivadeep P R said:
Can you share the test code for the same?

I used the TI example: "ti-processor-sdk-rtos-j722s-evm-11_00_00_06\mcu_plus_sdk_j722s_11_00_00_12\examples\kernel\freertos\task_switch".

0 Sivadeep P R 1 month ago in reply to Jenny

TI__Expert 6770 points

Hi,

Jenny said:
The previous email said educing the memory section to 63 bytes as suggested.I don't unstersatnd how to do it.

Either we shoud modify the linker.cmd or do something? Could you give me more details. Thanks

This a CMMU limitation. The C7x utilizes something called vector predicated stores. The result of these is that even though a store will not in effect write into illegal memory, it may address it but I don't think in this case that's the issue.

Jenny said:
If I only do DebugP_log("hello! \r\n"); like this in main(), it works well. I can reload the program and debug it.

What are the steps you followed for this?

Jenny said:
I am trying code that just printf "hello", it's work.I tried both OSPI NOR BOOT MODE and SD BOOT MODE, but they are all failed.

Did you get a chance to check this in no-boot mode?

Jenny said:
But if I create a task,At first run in the debug session, everything went perfectly smooth without any error. However, once I stop debugging and rebuidling the code, I got an unexpected error regarding High Priority Interrupt

Can you please try a board power cycle and check if this is happening.

Regards,
Sivadeep

0 Jenny 1 month ago in reply to Sivadeep P R

Prodigy 10 points

Sivadeep P R said:
What are the steps you followed for this?

First I load the out file and run it or debug it, then I pause it and reload it. No matter how many times, it works well.

But if run the taskswitch file, first time it wrorks well.But when I reload the file ,it gives me the error tips.

Sivadeep P R said:
Did you get a chance to check this in no-boot mode?

Other than the 2 boot modes, the DSP seems not work on, I can't connect it.

Sivadeep P R said:
Can you please try a board power cycle and check if this is happening

I tried this many times.First it works well, but if I reload the file. I got an unexpected error regarding High Priority Interrupt.

0 Sivadeep P R 1 month ago in reply to Jenny

TI__Expert 6770 points

Hi,

Jenny said:
First I load the out file and run it or debug it, then I pause it and reload it. No matter how many times, it works well.

Are you currently checking as a bare-metal application? Loading to c7x core only?

Jenny said:
But if run the taskswitch file, first time it wrorks well.But when I reload the file ,it gives me the error tips.

Have you tried any other examples?

Jenny said:
Other than the 2 boot modes, the DSP seems not work on, I can't connect it.

Can you please refer here :
https://software-dl.ti.com/jacinto7/esd/processor-sdk-rtos-j722s/latest/exports/docs/psdk_rtos/docs/user_guide/evm_setup_j722s.html

Regards,

SIvadeep

0 Jenny 1 month ago in reply to Sivadeep P R

Prodigy 10 points

Sivadeep P R said:
Are you currently checking as a bare-metal application? Loading to c7x core only?

Yes, now I run in the OSPI NOR BOOT MODE, I loaded to c7 core only.The result is same.

Sivadeep P R said:
Have you tried any other examples?

Yes, I tried all examples.If there is task started, it is wrong when I reload the program.

Sivadeep P R said:
Can you please refer here :
https://software-dl.ti.com/jacinto7/esd/processor-sdk-rtos-j722s/latest/exports/docs/psdk_rtos/docs/user_guide/evm_setup_j722s.html

When I run in the No boot mode, I can't connect the c7x_0 core.