VesiScan BASIC origin: Piezo + IMU firmware initial code

- nRF52840 + SoftDevice S140 BLE firmware
- Piezo ultrasound TX driver (2MHz, 8ch MUX)
- ICM42670P IMU 6-axis driver
- Echo AFE chain (ADA2200 + ADC121S051)
- BLE NUS command parser (mpa/mpc/mdc/mec/maa/msp)
- FDS flash config storage
- pc_firm parser and ADC driver included

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

project/ble_peripheral/ble_app_bladder_patch/main.c

@@ -1,6 +1,6 @@
 /*******************************************************************************
  * @file    main.c
- * @brief   Medithings Bladder Patch Firmware
+ * @brief   Medithings VesiScan BASIC
  * @version 1.17
  * @date    2025-12-09
  * @author  Charles KWON
@@ -93,6 +93,13 @@
 #include "nrf_crypto.h"
 #include <cmd_parse.h>
 #include "debug_print.h"
+#include "fstorage.h"
+
+
+#define HARDWARE_VERSION   "VB0HW0000"
+#define FIRMWARE_VERSION   "VB0FW0000"
+#define FIRMWARE_SERIAL_NO "VB026030000"
+
 
 /*==============================================================================
  * BUILD CONFIGURATION
@@ -319,19 +326,71 @@ static void full_gpio_init(void)
 static void load_default_config(void)
 {
     memset(SERIAL_NO, 0, 16);
-    memcpy(SERIAL_NO, "2025MEDIP0001", 13);
-    
+    memcpy(SERIAL_NO, FIRMWARE_SERIAL_NO, strlen(FIRMWARE_SERIAL_NO));
+
     memset(m_static_passkey, 0, 16);
     memcpy(m_static_passkey, "123456", 6);
-    
+
     m_pd_delay_us    = 8000;
     m_pd_adc_cnt     = 8;
     m_reset_status   = 1;
     bond_data_delete = 1;
-    
+
     DBG_PRINTF("[CFG] Default (S/N=%s)\r\n", SERIAL_NO);
 }
 
+/**@brief Load configuration from internal Flash (FDS) into global variables.
+ *
+ * Must be called AFTER ble_stack_init() → fs_storage_init() → config_load().
+ * Reads m_config (populated by config_load) and copies to runtime globals.
+ */
+static bool m_need_save_defaults = false;
+
+static void load_flash_config(void)
+{
+    m_need_save_defaults = false;
+
+    /* Hardware Number — fill default if empty */
+    if (m_config.hw_no[0] == 0 || m_config.hw_no[0] == (char)0xFF) {
+        memset(m_config.hw_no, 0, 12);
+        memcpy(m_config.hw_no, HARDWARE_VERSION, strlen(HARDWARE_VERSION));
+        DBG_PRINTF("[CFG] HW empty, set default: %s\r\n", HARDWARE_VERSION);
+        m_need_save_defaults = true;
+    }
+
+    /* Serial Number — fill default if empty */
+    if (m_config.serial_no[0] == 0 || m_config.serial_no[0] == (char)0xFF) {
+        memset(m_config.serial_no, 0, 12);
+        memcpy(m_config.serial_no, FIRMWARE_SERIAL_NO, strlen(FIRMWARE_SERIAL_NO));
+        DBG_PRINTF("[CFG] S/N empty, set default: %s\r\n", FIRMWARE_SERIAL_NO);
+        m_need_save_defaults = true;
+    }
+
+    /* Serial Number → BLE device name */
+    memset(SERIAL_NO, 0, 16);
+    memcpy(SERIAL_NO, m_config.serial_no, 12);
+
+    /* Passkey */
+    memset(m_static_passkey, 0, 16);
+    memcpy(m_static_passkey, m_config.static_passkey, 6);
+
+    /* Bond data delete flag */
+    bond_data_delete = m_config.bond_data_delete;
+
+    /* Reset status */
+    m_reset_status = m_config.reset_status;
+
+    /* Measurement parameters (with validation) */
+    m_pd_adc_cnt  = (m_config.pd_adc_cnt > 0 && m_config.pd_adc_cnt <= 32)
+                    ? m_config.pd_adc_cnt : 8;
+    m_pd_delay_us = (m_config.pd_delay_us > 0)
+                    ? m_config.pd_delay_us : 8000;
+
+    DBG_PRINTF("[CFG] HW=%.12s S/N=%s passkey=%.6s bond=%d rst=%d adc=%d delay=%u\r\n",
+               m_config.hw_no, SERIAL_NO, m_static_passkey, bond_data_delete,
+               m_reset_status, m_pd_adc_cnt, m_pd_delay_us);
+}
+
 #if !DEBUG_MINIMAL_BOOT
 static void load_eeprom_config(void)
 {
@@ -345,13 +404,13 @@ static void load_eeprom_config(void)
     
 #if BLE_DEV_MODE
     memset(SERIAL_NO, 0, 16);
-    memcpy(SERIAL_NO, "2005MEDIP001", 12);
+    memcpy(SERIAL_NO, FIRMWARE_SERIAL_NO, strlen(FIRMWARE_SERIAL_NO));
     DBG_PRINTF("[CFG] DEV S/N=%s\r\n", SERIAL_NO);
 #else
     if (!is_valid_serial_no(SERIAL_NO))
     {
         memset(SERIAL_NO, 0, 16);
-        memcpy(SERIAL_NO, "2025AAAAP000", 12);
+        memcpy(SERIAL_NO, FIRMWARE_SERIAL_NO, strlen(FIRMWARE_SERIAL_NO));
     }
     
     char const init_pass[6] = "123456";
@@ -1441,23 +1500,19 @@ int main(void)
     DBG_PRINTF("[2] Timers\r\n");
     timers_init();
 
-    // PHASE 4: 설정
-    DBG_PRINTF("[3] Config\r\n");
-#if DEBUG_MINIMAL_BOOT
+    // PHASE 4: 설정 (기본값 로드)
+    DBG_PRINTF("[3] Config (defaults)\r\n");
     load_default_config();
-#else
-    load_eeprom_config();
-#endif
 
     // PHASE 5: 버튼/LED
     DBG_PRINTF("[4] Buttons\r\n");
     buttons_leds_init(&erase_bonds_local);
-    
+
 #if FEATURE_SECURE_CONNECTION
     erase_bonds = erase_bonds_local;
 #endif
 
-    // PHASE 6: BLE
+    // PHASE 6: BLE 스택
     DBG_PRINTF("[5] BLE\r\n");
 
     power_management_init();
@@ -1466,6 +1521,13 @@ int main(void)
     ble_stack_init();
     DBG_PRINTF("  stack OK\r\n");
 
+    // PHASE 6.5: 내장 Flash (FDS) - BLE 스택 이후에 초기화해야 함
+    DBG_PRINTF("[5.5] FDS\r\n");
+    fs_storage_init();
+    config_load();
+    load_flash_config();
+    DBG_PRINTF("  fds OK\r\n");
+
     gap_params_init();
     DBG_PRINTF("  gap OK\r\n");
 
@@ -1487,6 +1549,13 @@ int main(void)
     peer_manager_init();
 #endif
 
+    // PHASE 7.5: FDS 기본값 저장 (advertising 이후)
+    if (m_need_save_defaults) {
+        DBG_PRINTF("[FDS] Saving defaults after ADV\r\n");
+        config_save();
+        m_need_save_defaults = false;
+    }
+
     // PHASE 8: 완료
     DBG_PRINTF("\r\n========================================\r\n");
     DBG_PRINTF(" READY [%s]\r\n", SERIAL_NO);