Arduino ESP32 flash分区表配置信息查询示例程序

Posted 2021-09-04 perseverance52

Arduino ESP32 flash分区表配置信息查询示例程序

• 程序烧录前，先配置好分区信息
  
• 在board.txt里面对应的详细分区配置：C:\\Users\\Administrator\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6
  
• 我的分区配置文件位置C:\\Users\\Administrator\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6\\tools\\partitions
  

详细分区配置信息

• 示例程序

/* Code gathered by Marc MERLIN <[e-mail]> from code found
on gitter (license unknown) and in esp32-arduino's 
libraries/FFat/examples/FFat_Test/FFat_Test.ino */

#include <esp_partition.h>
#include "FFat.h"

void partloop(esp_partition_type_t part_type) {
  esp_partition_iterator_t iterator = NULL;
  const esp_partition_t *next_partition = NULL;
  iterator = esp_partition_find(part_type, ESP_PARTITION_SUBTYPE_ANY, NULL);
  while (iterator) {
     next_partition = esp_partition_get(iterator);
     if (next_partition != NULL) {
        Serial.printf("partition addr: 0x%06x; size: 0x%06x; label: %s\\n", next_partition->address, next_partition->size, next_partition->label);  
     iterator = esp_partition_next(iterator);
    }
  }
}
 
void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
    Serial.printf("Listing directory: %s\\r\\n", dirname);

    File root = fs.open(dirname);
    if(!root){
        Serial.println("- failed to open directory");
        return;
    }
    if(!root.isDirectory()){
        Serial.println(" - not a directory");
        return;
    }

    File file = root.openNextFile();
    while(file){
        if(file.isDirectory()){
            Serial.print("  DIR : ");
            Serial.println(file.name());
            if(levels){
                listDir(fs, file.name(), levels -1);
            }
        } else {
            Serial.print("  FILE: ");
            Serial.print(file.name());
            Serial.print("\\tSIZE: ");
            Serial.println(file.size());
        }
  file.close();
        file = root.openNextFile();
    }
}

void setup(){
    Serial.begin(115200);
   
    Serial.setDebugOutput(true);

    Serial.println("Partition list:");
    partloop(ESP_PARTITION_TYPE_APP);
    partloop(ESP_PARTITION_TYPE_DATA);

    Serial.println("\\n\\nTrying to mount ffat partition if present");
 
    // Only allow one file to be open at a time instead of 10, saving 9x4 - 36KB of RAM
    if(!FFat.begin( 0, "", 1 )){
        Serial.println("FFat Mount Failed");
        return;
    }
 
    Serial.println("File system mounted");
    Serial.printf("Total space: %10lu\\n", FFat.totalBytes());
    Serial.printf("Free space:  %10lu\\n\\n", FFat.freeBytes());
    listDir(FFat, "/", 5);
}
 
void loop(){}

• 串口打印信息