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Tinyu
54 lines
2.7 KiB
Arduino
54 lines
2.7 KiB
Arduino
/*
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*******************************************************************************
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* Copyright (c) 2021 by M5Stack
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* Equipped with STAMP-PICO sample source code
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* 配套 STAMP-PICO 示例源代码
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* Visit the website for more information：https://docs.m5stack.com/en/core/stamp_pico
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* 获取更多资料请访问：https://docs.m5stack.com/zh_CN/core/stamp_pico
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*
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* describe：SPIFFS Add(Write is to clean up the contents of the file and write it again.)
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* 向SPIFFS中添加信息(write是将文件内容完全清除重新写)
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* date：2021/9/25
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*******************************************************************************
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*/
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#include <Arduino.h>
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#include <SPIFFS.h>
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String file_name = "/M5Stack/notes.txt"; //Sets the location and name of the file to be operated on. 设置被操作的文件位置和名称
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bool SPIFFS_FORMAT = true; //Whether to initialize the SPIFFS. 是否初始化SPIFFS
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//You don't need to format the flash file system every time you use it.
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//无需每次使用闪存都进行格式化
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void setup() {
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Serial.begin(115200);
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if(SPIFFS_FORMAT){
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Serial.println("\nSPIFFS format start..."); //Screen prints format String. 屏幕打印格式化字符串
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SPIFFS.format(); // Formatting SPIFFS. 格式化SPIFFS
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Serial.println("SPIFFS format finish");
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}
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if(SPIFFS.begin()){ // Start SPIFFS, return 1 on success. 启动闪存文件系统,若成功返回1
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Serial.println("\nSPIFFS Started.");
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} else {
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Serial.println("SPIFFS Failed to Start.");
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}
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if (SPIFFS.exists(file_name)){ //Check whether the file_name file exists in the flash memory. 确认闪存中是否有file_name文件
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Serial.println("FOUND.");
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Serial.println(file_name);
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File dataFile = SPIFFS.open(file_name, "a"); // Create a File object dafaFile to add information to file_name in the SPIFFS. 建立File对象dafaFile用于向SPIFFS中的file_name添加信息
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dataFile.println("This is Appended Info."); // Adds string information to dataFile. 向dataFile添加字符串信息
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dataFile.close(); // Close the file when writing is complete. 完成写入后关闭文件
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Serial.println("Finished Appending data to SPIFFS");
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}else {
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Serial.println("NOT FOUND.");
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Serial.print(file_name);
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Serial.println("is creating.");
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File dataFile = SPIFFS.open(file_name, "w"); // Create aFile object dafaFile to write information to file_name in the SPIFFS. 建立File对象dafaFile用于向SPIFFS中的file_name写入信息
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dataFile.close(); // Close the file when writing is complete. 完成写入后关闭文件
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Serial.println("Please disable format and Reupload");
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}
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}
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void loop() {
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} |