程式只有单独SPI读取并没有问题，但在另一个核心执行不同任务时，却会影响到SPI的读取 (IDFGH-12894)

zhaohaiyan75 commented 5 months ago

Answers checklist.

[X] I have read the documentation ESP-IDF Programming Guide and the issue is not addressed there.
[X] I have updated my IDF branch (master or release) to the latest version and checked that the issue is present there.
[X] I have searched the issue tracker for a similar issue and not found a similar issue.

IDF version.

esp-idf-v5.0.4

Espressif SoC revision.

ESP32S3

Operating System used.

Windows

How did you build your project?

VS Code IDE

If you are using Windows, please specify command line type.

None

Development Kit.

ESP32-S3-WROOM-1U-N4

Power Supply used.

USB

What is the expected behavior?

我使用FreeRTOS(xTaskCreatePinnedToCore)进行多核分工，core 1做SPI高速的读取不间断，core 0做WiFi的连结与传输。希望两个线程之间相互不影响

What is the actual behavior?

如果程式只有单独SPI读取并没有问题，但在另一个核心执行不同任务时，却会影响到SPI的读取，造成读的资料错误，这是什么原因呢? 明明是在不同核心下工作，怎么会互相影响到?尤其是在wifi连接瞬间，SPI读到错误值越多。

SPI是master，CLK速率40M ESP32_CPU_Freq为240M，160M时错误更多

Steps to reproduce.

参见上面的说明

Debug Logs.

No response

More Information.

No response

nopnop2002 commented 5 months ago

What happens if you adjust the priority of SPI reading tasks and other tasks?

What happens if you use xTaskCreate instead of xTaskCreatePinnedToCore?

zhaohaiyan75 commented 5 months ago

What happens if you adjust the priority of SPI reading tasks and other tasks?

What happens if you use xTaskCreate instead of xTaskCreatePinnedToCore?

Core 1 only one task, its function is read data by spi, its priority is the highest. I have used xTaskCreatePinnedToCore to create task to assign cpu core.

nopnop2002 commented 5 months ago

Core 1 only one task

Enabling WiFi will add a tiT task.

And note that the core number for this task is -1 (Not pinned).

Just by enabling WiFi, tasks running on core #1 will be affected.

main            X       1       1004    4       0
IDLE1           R       0       916     6       1
IDLE0           R       0       920     5       0
tiT             B       18      2104    8       -1
ipc0            S       24      480     1       0
Tmr Svc         B       1       1504    7       0
esp_timer       S       22      3312    3       0
wifi            B       23      656     10      0
ipc1            S       24      492     2       1
sys_evt         B       20      840     9       0

zhaohaiyan75 commented 5 months ago

Core 1 only one task

Enabling WiFi will add a tiT task.

And note that the core number for this task is -1 (Not pinned).

Just by enabling WiFi, tasks running on core #1 will be affected.

main            X       1       1004    4       0
IDLE1           R       0       916     6       1
IDLE0           R       0       920     5       0
tiT             B       18      2104    8       -1
ipc0            S       24      480     1       0
Tmr Svc         B       1       1504    7       0
esp_timer       S       22      3312    3       0
wifi            B       23      656     10      0
ipc1            S       24      492     2       1
sys_evt         B       20      840     9       0

thank you for your informatiom. When I set read spi task priority high tiT, spi read is normal, This problem is solved

espressif / esp-idf