Improve code formatting and documentation

Author: Purva Yeshi

libraries/EEPROM/EEPROM.h

@@ -20,38 +20,35 @@ namespace arduino {
 
 class ZephyrEEPROM {
 public:
-    /* Constructor */
-    ZephyrEEPROM() = default;
-
-    /* Initialize the NVS storage (mounts the NVS file system) */
-    int nvs_init(void);
-
-
-    /*
-     * Write data to NVS
-     * 
-     * Parameters:
-     *   - id: Unique identifier for the data
-     *   - data: Pointer to the data to write
-     *   - data_len: Length of the data to write
-     */
-    int write_data(uint16_t id, const void *data, size_t data_len);
-
-
-    /* 
-     * Read data from NVS
-     *
-     * Parameters:
-     *   - id: Unique identifier for the data
-     *   - data: Pointer to buffer where the data will be read into
-     *   - max_len: Maximum length of data to read
-     */
-    int read_data(uint16_t id, void *data, size_t max_len);
-
+  /* Constructor */
+  ZephyrEEPROM() = default;
+
+  /* Initialize the NVS storage (mounts the NVS file system) */
+  int nvs_init(void);
+
+  /*
+   * Write data to NVS
+   * 
+   * Parameters:
+   *   - id: Unique identifier for the data
+   *   - data: Pointer to the data to write
+   *   - data_len: Length of the data to write
+   */
+  int write_data(uint16_t id, const void *data, size_t data_len);
+
+  /* 
+   * Read data from NVS
+   *
+   * Parameters:
+   *   - id: Unique identifier for the data
+   *   - data: Pointer to buffer where the data will be read into
+   *   - max_len: Maximum length of data to read
+   */
+  int read_data(uint16_t id, void *data, size_t max_len);
 
 private:
-    /* NVS file system structure used for managing flash memory */ 
-    struct nvs_fs fs;
+  /* NVS file system structure used for managing flash memory */ 
+  struct nvs_fs fs;
 };
 
 }  

samples/eeprom_operations/README.rst

@@ -1,9 +1,60 @@
 .. _eeprom_operations:
 
+.. _eeprom_operations:
+
 EEPROM Operations
-###############
+#################
 
 Overview
 ********
 
-A sample that reads data from flash memory, as well as writes data to flash memory.
+Read and write data from flash memory using this sample.
+
+Prerequisites and Setup
+***********************
+
+Use any board that supports Zephyr RTOS.  
+This example uses **BeagleConnect Freedom**.
+
+For setup, refer to the `documentation <https://docs.beagle.cc/boards/beagleconnect/freedom/demos-and-tutorials/using-arduino-zephyr-template.html#setup-arduino-workspace>`_.
+
+Build and Test
+**************
+
+Follow these steps to set up and run the sample in the `arduino-workspace` directory:
+
+1. **Set up the virtual environment:**
+
+   .. code-block:: bash
+
+      source .venv/bin/activate
+
+2. **Build the EEPROM operations sample:**
+
+   .. code-block:: bash
+
+      west build -b beagleconnect_freedom modules/lib/Arduino-Zephyr-API/samples/eeprom_operations -p
+
+3. **Flash the code after connecting BeagleConnect Freedom to your device:**
+
+   .. code-block:: bash
+
+      west flash
+
+4. **Open the serial console to view the output:**
+
+   .. code-block:: bash
+
+      tio /dev/ttyACM0
+
+Sample Output
+*************
+
+Run the code and observe the following output:
+
+.. code-block:: text
+
+    Serial communication initialized
+    NVS initialized
+    Data written successfully
+    Data read: 1234

samples/eeprom_operations/src/app.cpp

@@ -4,15 +4,17 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-
 #include <Arduino.h>
 #include "EEPROM.h" 
 
 void setup() {
+
+  int data = 1234;  // Example data to store
+  int read_data = 0;
+
   /* Initialize serial communication */
   Serial.begin(115200);
   while (!Serial) {
-
     ; /* Wait for serial port to connect (needed for boards with native USB) */
   }
   Serial.println("Serial communication initialized");
@@ -25,15 +27,13 @@ void setup() {
   Serial.println("NVS initialized");
 
   /* Write data to EEPROM */
-  int data = 1234;  // Example data to store
   if (EEPROM.write_data(1, &data, sizeof(data)) < 0) { 
     Serial.println("Failed to write data");
   } else {
     Serial.println("Data written successfully");
   }
 
   /* Read data from EEPROM */
-  int read_data = 0;
   if (EEPROM.read_data(1, &read_data, sizeof(read_data)) > 0) { 
     Serial.print("Data read: ");
     Serial.println(read_data);