P2.5 Fails initialization after deep sleep wake up of esp32s3.

[samir0802]

//----------------------------------P2.5 Display -------------------------------------------------------------//
// P2.5 display has following connections with esp32s3
#define R1_PIN 4
#define G1_PIN 5
#define B1_PIN 6
#define R2_PIN 7
#define G2_PIN 15
#define B2_PIN 16
#define A_PIN 17
#define B_PIN 18
#define C_PIN 21
#define D_PIN 20
#define E_PIN 19
#define LAT_PIN 26
#define OE_PIN 48
#define CLK_PIN 47

// P2.5 Display Parameters and definitions
#define PANEL_RES_X 128 // Number of pixels wide of each INDIVIDUAL panel module.
#define PANEL_RES_Y 64 // Number of pixels tall of each INDIVIDUAL panel module.
#define PANEL_CHAIN 1 // Total number of panels chained one to another horizontally only.

// Defining the HUB75 pins of display
HUB75_I2S_CFG::i2s_pins _pins = { R1_PIN, G1_PIN, B1_PIN, R2_PIN, G2_PIN, B2_PIN, A_PIN, B_PIN, C_PIN, D_PIN, E_PIN, LAT_PIN, OE_PIN, CLK_PIN };

//Configuration of display
HUB75_I2S_CFG mxconfig(
PANEL_RES_X, // module width
PANEL_RES_Y, // module height
PANEL_CHAIN, // Chain length
_pins,
HUB75_I2S_CFG::ICN2038S // driver chip
);

MatrixPanel_I2S_DMA dma_display(mxconfig);

// MatrixPanel_I2S_DMA *dma_display = nullptr;

int x_offset, y_offset;

// display functions
void displaySetup(); // Set up the display , define pins and initialize the module
void displayMessage(const char* name, const char* contact); // Display the Message (name and contact details)
void displaySettings(); // Display the changed Settings

TaskHandle_t displayTaskHandle; // Task Handler for display functions
int displayDurationGlobal; // Store the display duration globally
int Display_Power_Pin = 46; // Pin to enable Power to Display module

void setup() {
// put your setup code here, to run once:
wokeup_duration = millis();
debug.begin(115200);
Serial.begin(115200);
xTaskCreatePinnedToCore(displayTask, "display task", 16384, NULL, 2, &displayTaskHandle, 1); // Stack size: 4096, priority: 1
debug.println("---------------------RTOS Tasks Created----------------------");
xTaskNotifyGive(displayTaskHandle); // Assuming displayTaskHandle is the handle for the displaying the task
activate_esp_deepsleep();
}

int scrollSpeed = 50; // Scroll spped
int startX = PANEL_RES_X; // Start from the right edge of the screen
int nameLength = 0;
unsigned long displayStartTime = 0;
unsigned long lastUpdate = 0; // Stores the last time the display was updated

// Function to handle the display logic in a separate task
void displayTask(void* parameter) {
while (true) {
// if (newDataAvailable) {

  ulTaskNotifyTake(pdTRUE, portMAX_DELAY);  // Wait indefinetely for a notification
    digitalWrite(Display_Power_Pin, HIGH);
    delay(500);
    displaySetup();  // Setup the display MOdule

    // dma_display.end();
    digitalWrite(Display_Power_Pin, LOW);
    delay(500);
// Small delay to allow other tasks to run
vTaskDelay(10 / portTICK_PERIOD_MS);  // 10 ms delay for FreeRTOS task scheduling

}
}

void displaySetup() {

if(dma_display.begin()) debug.println("\n[Info] Display Successfully Initialized!!"); 
else{
  debug.println("\n[Info] Display not Initialized!!");
  if(settingsON || newDataAvailable){
    settingsON = false;
    newDataAvailable = false;
  }
  return;
} 

// Colour Codes to use in Display
uint16_t myBLACK = dma_display.color565(0, 0, 0);             // Black
uint16_t myWHITE = dma_display.color565(255, 255, 255);       // White
uint16_t myRED = dma_display.color565(255, 0, 0);             // Red
uint16_t myGREEN = dma_display.color565(0, 255, 0);           // Green
uint16_t myBLUE = dma_display.color565(0, 0, 255);            // Blue
uint16_t myYELLOW = dma_display.color565(255, 255, 0);        // Yellow
uint16_t myCYAN = dma_display.color565(0, 255, 255);          // Cyan
uint16_t myMAGENTA = dma_display.color565(255, 0, 255);       // Magenta
uint16_t myORANGE = dma_display.color565(255, 165, 0);        // Orange
uint16_t myPURPLE = dma_display.color565(128, 0, 128);        // Purple
uint16_t myPINK = dma_display.color565(255, 105, 180);        // Pink
uint16_t myBROWN = dma_display.color565(165, 42, 42);         // Brown
uint16_t myGREY = dma_display.color565(128, 128, 128);        // Grey
uint16_t myDARKBLUE = dma_display.color565(0, 0, 139);        // Dark Blue
uint16_t myDARKGREEN = dma_display.color565(0, 100, 0);       // Dark Green
uint16_t myDARKRED = dma_display.color565(139, 0, 0);         // Dark Red
uint16_t myLIGHTBLUE = dma_display.color565(173, 216, 230);   // Light Blue
uint16_t myLIGHTGREEN = dma_display.color565(144, 238, 144);  // Light Green


dma_display.setBrightness(255); // (0-255)
dma_display.setTextWrap(false);  // Disable text wrap
dma_display.clearScreen();

if(boot_count == 1){
  debug.println("[Info] Display [Info] Displaing Device name:");
  long Info_display_timer = millis();
  dma_display.clearScreen();
  while(millis() - Info_display_timer <= 10000){  
    // Set text size and color
    dma_display.setTextSize(2);      // size 1 == 8 pixels high
    dma_display.setTextColor(myRED); // White text
    dma_display.setCursor(5, 5);
    dma_display.print("Community");
    dma_display.setCursor(5, 21);
    dma_display.print("Siren");
    dma_display.setCursor(5, 40);
    dma_display.setTextColor(myPINK); // White text
    dma_display.print("ID: " + device_ID);
    delay(100);
    // yield();
  }
  dma_display.clearScreen();
  info_displayed = true;
}

if(settingsON){
  Serial.println("Display ON!!!");
  settingsON = false;
  // displaySettings();
  preferences.begin("CS_CONFIG", true);  
    lora_SF         = preferences.getInt("lora_SF", 12);
    lora_BW         = preferences.getFloat("lora_BW", 125.0);
    lora_CR         = preferences.getInt("lora_CR", 6);
    lora_CH         = preferences.getChar("lora_CH", 'D');
    lora_FQ         = getChannelFrequency(lora_CH);
    float wakeInterval = preferences.getFloat("wakeup_time", 30);
  preferences.end();
  // Clear the screen
  dma_display.clearScreen();

  // Set text size and color
  dma_display.setTextSize(2);      // size 1 == 8 pixels high

  // Set initial cursor position
  int cursorY = 2 ;
  dma_display.setCursor(8, cursorY);
  dma_display.setTextColor(myPINK); // White text
  dma_display.print("Settings");
  //Display Freq
  cursorY +=20;
  dma_display.setTextSize(1);
  dma_display.setCursor(2, cursorY);
  dma_display.setTextColor(myWHITE); // White text
  dma_display.print("Freq: ");
  lora_FQ         = getChannelFrequency(lora_CH);
  dma_display.print(lora_FQ);
  dma_display.print(" MHz");
  //Display Duty Cycle
  cursorY +=8;
  dma_display.setCursor(2, cursorY);
  dma_display.setTextColor(myWHITE); // White text
  dma_display.print("Lora SF: ");
  dma_display.print(lora_SF);
  // dma_display.print(" s");
  //Display Duty Cycle
  cursorY +=8;
  dma_display.setCursor(2, cursorY);
  dma_display.setTextColor(myWHITE); // White text
  dma_display.print("Lora_CR: ");
  dma_display.print(lora_CR);
  // dma_display.print(" s");
  //Display Siren Duration
  cursorY +=8;
  dma_display.setCursor(2, cursorY);
  dma_display.setTextColor(myWHITE); // White text
  dma_display.print("Beacon Time: ");
  dma_display.print((int)wakeInterval);
  dma_display.print(" min");
  //Display Display Duration
  cursorY +=8;
  // dma_display.setCursor(2, cursorY);
  // dma_display.setTextColor(myWHITE); // White text
  // dma_display.print("Display Time: ");
  // dma_display.print(displayDurationGlobal);
  // dma_display.print(" s");
  delay(5000);
  // vTaskDelay( 2000/ portTICK_PERIOD_MS);
  dma_display.clearScreen();
}else if(newDataAvailable){
  Serial.println("Display ON!!!");
  newDataAvailable = false;
  debug.println("------------------------------------------------");
  debug.println("[Info] Displaying the Caller Details..");
  // displayMessage(currentName.c_str(), currentPhone.c_str());
  // Clear the screen
  dma_display.clearScreen();

  // Set text size and color
  dma_display.setTextSize(2);      // size 1 == 8 pixels high
  // Display Name
  nameLength = strlen(currentName.c_str()) * 12; // 12 pixels width per character

  // Set initial cursor position
  int cursorY = 2 ;

  // Display Contact
  cursorY +=16;
  dma_display.setCursor(5, cursorY);
  dma_display.setTextColor(myPINK); // White text
  dma_display.print(currentPhone);

  //Display Date
  cursorY += 16;  // Move cursor down
  // dma_display.fillRect(0, cursorY-1, PANEL_RES_X, 16, myWHITE); // Fill rectangle with white for date
  dma_display.setCursor(5, cursorY);
  dma_display.setTextColor(myWHITE); // White text
  dma_display.print(Date);
  //Display Time
  cursorY += 16;  // Move cursor down
  dma_display.setCursor(5, cursorY);
  // dma_display.fillRect(0, cursorY-1, PANEL_RES_X, 16, myWHITE); // Fill rectangle with white for Time
  dma_display.setTextColor(myWHITE); // White text
  dma_display.print(Time);

  startX = PANEL_RES_X;
  displayStartTime = millis();

  cursorY = 2;  // Y position for the name display
  dma_display.setTextColor(myGREEN);

  unsigned long startTime = millis();
  while (millis() - startTime < displayDurationGlobal * 1000) {
    // debug.print("D");
    // clear the previous position
    dma_display.fillRect(0, cursorY, PANEL_RES_X, 14, myBLACK); // Clear the rectange for displaying name
    // set the cursor position for the name
    dma_display.setCursor(startX, cursorY);
    dma_display.print(currentName);
    //Move the name to the left
    startX -=2;
    //If the name has moved off the screen, reset the position
    if(startX < -nameLength){
      startX = PANEL_RES_X;
    }
    // vTaskDelay(scrollSpeed / portTICK_PERIOD_MS);
    delay(scrollSpeed);
    // yield();
  }
  debug.println();
    // Clear the screen
  dma_display.fillScreen(myBLACK);
}

// }
// mxconfig.gpio.e = 42;
// mxconfig.clkphase = false;

}

[samir0802]

Above code is only the snippet of display functions. I have tried pointer definition for display, also not working at all. On the reset as a first boot of esp, display gets initialized and also displays on the board but after wake up from the deep sleep, it fails to initialize, nothing at the display.

[mrcodetastic]

I'll see if I can replicate. Could be some DMA engine stuff that goes wrong after a deep sleep... but I'm not sure how given the entire setup() function would get called again upon wake from sleep.