When use SPI device the task is crash after setCpuFrequencyMhz() (v2.0.3)

[LusterWong]

Board

ESP32-WROVER-E

Device Description

DevKitC V4

Hardware Configuration

pin_sclk = 18;
pin_mosi = 23;
pin_miso = 19;
pin_dc = 21;

Version

v2.0.3

IDE Name

Sloeber

Operating System

Windows 10

Flash frequency

80Mhz

PSRAM enabled

yes

Upload speed

921000

Description

In projects using LCD, down the frequency to 80Mhz when idle.
Initialize LCD after call setCpuFrequencyMhz(80) and print the current frequency, which freezes each time.

Run the output from serial "in...." will task crash.

Sketch

#include "Arduino.h"
#include <TFT_eSPI.h>

static TFT_eSPI tft;

void setup() 
{
        Serial.begin(115200);
        Serial.println("Test!");
        tft.init();
        tft.startWrite();
}

loop()
{
        Serial.printf("in....\n");
        delay(200);
   
	if(setCpuFrequencyMhz(80) == true)          //<-------------------carsh-------------------
	{
		delay(200);
		Serial.printf("f = %d\n", getCpuFrequencyMhz());
	}
        else
        {
                Serial.printf("fail\n");
        }
        delay(60 * 1000L);
}

Debug Message

[     2-hal-cpu.c:214] setCpuFrequencyMhz(): PLL: 480 / 2 = 240 Mhz, APB: 80000000 Hz
[   843][I][esp32-hal-psram.c:96] psramInit(): PSRAM enabled 
in....
[  2742][D][esp32-hal-cpu.c:214] setCpuFrequencyMhz(): PLL: 320 / 4 = 80 Mhz, APB: 80000000 Hz

Other Steps to Reproduce

I tried setCpuFrequencyMhz(80) on another task and found that only the current task was crash, the loop() running normally .

#include "Arduino.h"
#include <TFT_eSPI.h>

static TFT_eSPI tft;

void TestTask(void* Parameter)
{
	delay(1000 * 15);
	while(1)
	{
		Serial.printf("in....\n");
                delay(200);
   
	        if(setCpuFrequencyMhz(80) == true)               //<-------------------carsh-------------------
	        {
		       delay(200);
		       Serial.printf("f = %d\n", getCpuFrequencyMhz());
	        }
                else
                {
                        Serial.printf("fail\n");
                }
	}
}

void setup() 
{
        Serial.begin(115200);
        Serial.println("Test!");

        xTaskCreate(TestTask, "TestTask", 4096, NULL, 1, NULL);
        tft.init();
        tft.startWrite();
}

loop()
{
        Serial.printf("run\n");          <----------------output per 5s
        delay(5 * 1000L);
}

### I have checked existing issues, online documentation and the Troubleshooting Guide

- [X] I confirm I have checked existing issues, online documentation and Troubleshooting guide.

[me-no-dev]

can you post the logs from the crash? Changing CPU frequency has not yet been verified with Arduino 2.0.x and the HAL changes it includes. We might drop this feature (or allow it only in the beginning of setup)

[LusterWong]

can you post the logs from the crash? Changing CPU frequency has not yet been verified with Arduino 2.0.x and the HAL changes it includes. We might drop this feature (or allow it only in the beginning of setup)

Yes, in fact 2.0.2 also crashed.
I want to print logs, but if there's a crash the logs won't print.
After [ 2742][D][esp32-hal-cpu.c:214] setCpuFrequencyMhz(): PLL: 320 / 4 = 80 Mhz, APB: 80000000 Hz is printed, there is no output.

[me-no-dev]

so how do you know that it crashed? does it reboot?

[LusterWong]

so how do you know that it crashed? does it reboot?

Not reboot, and the loop() no longer run when call setCpuFrequencyMhz(80).
Another case you can see above the post "Other Steps to Reproduce". The TestTask call setCpuFrequencyMhz(80) this task will crashed but loop() running normally. Prove that setCpuFrequencyMhz is just stuck to own task.