initial commit
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jhChun
407
project/ble_peripheral/ble_app_vivaMayo/main.c
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407
project/ble_peripheral/ble_app_vivaMayo/main.c
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/*******************************************************************************
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* @file main.c
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* @brief MEDiThings VivaMayo - Main Application Entry Point
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* @author Charles KWON <charleskwon@medithings.co.kr>
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* @date 2025-01-30
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* @copyright (c) 2025 Medithings Inc. All rights reserved.
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*
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* @version 1.17
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* @note 2025-01-30 Refactored into modular structure (Charles KWON)
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* @note 2025-12-31 Added comprehensive function documentation (Charles KWON)
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* @note 2025-11-27 Firmware cleanup and refactoring (Charles KWON)
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******************************************************************************/
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#include <stdint.h>
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#include <string.h>
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#include <stdio.h>
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#include "debug_print.h"
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#include "app_uart.h"
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/* Nordic SDK */
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#include "nordic_common.h"
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#include "nrf.h"
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#include "nrf_gpio.h"
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#include "nrf_sdh.h"
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#include "nrf_sdh_soc.h"
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#include "nrf_sdh_ble.h"
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#include "nrf_pwr_mgmt.h"
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#include "nrf_delay.h"
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#include "nrf_log.h"
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#include "nrf_log_ctrl.h"
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#include "nrf_log_default_backends.h"
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#include "app_timer.h"
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#include "app_error.h"
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#include "bsp.h"
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#include "bsp_btn_ble.h"
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#include "ble_nus.h"
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/* Application Modules */
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#include "ble/ble_core.h"
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#include "ble/ble_services.h"
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#include "ble/ble_data_tx.h"
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#include "power/power_ctrl.h"
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#include "peripheral/uart_handler.h"
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#include "config/device_config.h"
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#if FEATURE_SECURE_CONNECTION
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#include "ble/ble_security.h"
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#include "nrf_ble_lesc.h"
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#endif
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/* Hardware and Measurement Modules */
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#include "main.h"
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#include "main_timer.h"
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#include "battery_saadc.h"
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#include "measurements.h"
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#include "full_agc.h"
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#include "meas_pd_voltage_simple.h"
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#include "meas_pd_voltage_half.h"
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/* #include "meas_pd_voltage_full.h" */ /* Moved to unuse/ - FEATURE_PRINTF=0, not used */
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#include "meas_pd_voltage_custom.h"
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#include "meas_pd_imm.h"
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#include "meas_pd_48.h"
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#include "power_control.h"
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#include "cat_interface.h"
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#include "fstorage.h"
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#include "drivers/w25q32/w25q32.h"
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/* Crypto */
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#include "nrf_crypto.h"
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/*******************************************************************************
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* @section BUILD_CONFIG Build Configuration
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* @brief Compile-time feature flags and debug settings
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* @details Controls boot mode selection between minimal (Power+BLE only) and
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* full initialization (includes EEPROM and all peripherals).
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* Set DEBUG_MINIMAL_BOOT=1 for rapid debugging without EEPROM dependency.
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******************************************************************************/
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#define DEBUG_MINIMAL_BOOT 1 /**< 1: Power+BLE only (no EEPROM), 0: Full boot */
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/*******************************************************************************
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* @section CONSTANTS Symbolic Constants
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* @brief Application-wide constant definitions
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* @details Magic numbers and compile-time constants used for error handling,
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* fault detection, and system-level operations.
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******************************************************************************/
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#define DEAD_BEEF 0xDEADBEEF
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/*******************************************************************************
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* @section GLOBALS Global Variables
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* @brief Shared runtime state and data buffers
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* @details BLE transmission buffers, command type state, and cross-module
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* flags. External declarations reference state from other modules.
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* @warning Global state should be accessed with care in interrupt context.
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******************************************************************************/
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char ble_tx_buffer[BLE_NUS_MAX_DATA_LEN];
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uint16_t ble_bin_buff[BLE_NUS_MAX_DATA_LEN/2];
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which_cmd_t cmd_type_t;
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/* External state flags from other modules */
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extern bool ble_got_new_data;
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extern bool motion_data_once;
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extern bool adc_enabled;
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extern bool con_single;
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extern bool info4;
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extern uint8_t add_cycle;
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extern bool motion_raw_data_enabled;
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/*******************************************************************************
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* @section FWD_DECL Forward Declarations
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* @brief Static function prototypes
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* @details Internal initialization and handler functions declared here for
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* proper ordering. Visibility limited to this translation unit.
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******************************************************************************/
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static void timers_init(void);
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static void log_init(void);
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static void power_management_init(void);
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static void buttons_leds_init(bool * p_erase_bonds);
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#if !DEBUG_MINIMAL_BOOT
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static void gpio_init(void);
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#endif
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static void idle_state_handle(void);
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/*******************************************************************************
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* @section ASSERT Assert Handler
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* @brief System fault callback for SDK assertions
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* @details Invoked by Nordic SDK on fatal errors. Provides fault location
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* (file and line) for debugging via app_error_handler.
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******************************************************************************/
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void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name)
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{
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app_error_handler(DEAD_BEEF, line_num, p_file_name);
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}
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/*******************************************************************************
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* @section INIT Initialization Functions
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* @brief System and peripheral initialization routines
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* @details Configures logging, power management, timers, and BSP components.
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* Call order is critical - see main() for proper sequencing.
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******************************************************************************/
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static void log_init(void)
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{
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ret_code_t err_code = NRF_LOG_INIT(NULL);
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APP_ERROR_CHECK(err_code);
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NRF_LOG_DEFAULT_BACKENDS_INIT();
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}
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static void power_management_init(void)
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{
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ret_code_t err_code;
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err_code = nrf_pwr_mgmt_init();
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APP_ERROR_CHECK(err_code);
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}
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static void timers_init(void)
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{
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ret_code_t err_code = app_timer_init();
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APP_ERROR_CHECK(err_code);
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/* Power control timers */
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power_ctrl_timers_init();
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/* Application timers */
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main_timer_init();
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battery_timer_init();
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imm_check_timer_init();
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m48_check_timer_init();
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full_agc_timer_init();
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full_agc_send_timer_init();
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mea_send_timer_init();
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power_timer_init();
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w25q_test_timer_init();
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/* full_timer_init() - Moved to unuse/, FEATURE_PRINTF=0 so not used */
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}
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static void buttons_leds_init(bool * p_erase_bonds)
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{
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bsp_event_t startup_event;
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uint32_t err_code = bsp_init(BSP_INIT_LEDS | BSP_INIT_BUTTONS, power_bsp_event_handler);
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APP_ERROR_CHECK(err_code);
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err_code = bsp_btn_ble_init(NULL, &startup_event);
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APP_ERROR_CHECK(err_code);
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*p_erase_bonds = (startup_event == BSP_EVENT_CLEAR_BONDING_DATA);
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}
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/*******************************************************************************
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* @section PWR_HOLD Power Hold Initialization
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* @brief Latches power supply on boot
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* @details Configures P0.08 (POWER_HOLD) as output HIGH to maintain VCC.
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* CRITICAL: Must be the first call in main() - any delay risks
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* power loss if button is released before latch is set.
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* @note Uses direct register access for minimum latency.
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******************************************************************************/
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static void power_hold_init(void)
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{
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/* P0.08 = POWER_HOLD, configure as output and set HIGH to maintain power */
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NRF_P0->DIRSET = (1 << 8);
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NRF_P0->OUTSET = (1 << 8);
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}
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/*******************************************************************************
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* @section MIN_GPIO Minimal GPIO Initialization (Debug Mode)
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* @brief Reduced GPIO setup for rapid debugging
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* @details Initializes only essential pins: POWER_BUTTON input, POWER_HOLD
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* output, and power control GPIOs. Skips LEDs, PD array, gain
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* switches, and EEPROM control for faster boot.
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* @pre DEBUG_MINIMAL_BOOT must be set to 1
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******************************************************************************/
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static void minimal_gpio_init(void)
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{
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nrf_gpio_cfg_input(POWER_BUTTON, NRF_GPIO_PIN_NOPULL);
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nrf_gpio_cfg_output(POWER_HOLD);
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nrf_gpio_pin_set(POWER_HOLD);
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power_gpio_init();
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LOG_PRINTF("[GPIO] Minimal OK\r\n");
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}
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/*******************************************************************************
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* @section MIN_CFG Default Configuration Loader (Debug Mode)
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* @brief Loads hardcoded defaults bypassing EEPROM
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* @details Sets factory defaults for serial number, passkey, PD timing,
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* and bonding state. Used when EEPROM is unavailable or for
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* rapid iteration during development.
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* @pre DEBUG_MINIMAL_BOOT must be set to 1
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******************************************************************************/
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static void load_default_config(void)
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{
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/* Direct assignment of variables defined in device_config.h */
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memset(SERIAL_NO, 0, sizeof(SERIAL_NO));
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memcpy(SERIAL_NO, "2025VIVAM00001", 14);
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memset(m_static_passkey, 0, sizeof(m_static_passkey));
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memcpy(m_static_passkey, "123456", 6);
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m_pd_delay_us = 8000;
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m_pd_adc_cnt = 8;
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bond_data_delete = true;
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LOG_PRINTF("[CFG] Default (S/N=%s)\r\n", SERIAL_NO);
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}
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/*******************************************************************************
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* @section FULL_GPIO Full GPIO Initialization (Production Mode)
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* @brief Complete peripheral GPIO configuration
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* @details Initializes all hardware interfaces: LEDs, photodiode array (PD),
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* trigger switches, AGC gain control, power management, and EEPROM.
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* All outputs are set to safe default states (LEDs off, PD off).
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* @pre DEBUG_MINIMAL_BOOT must be set to 0
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******************************************************************************/
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#if !DEBUG_MINIMAL_BOOT
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static void gpio_init(void)
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{
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nrf_gpio_cfg_input(POWER_BUTTON, NRF_GPIO_PIN_NOPULL);
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LED_CONFIG();
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LED_ALLOFF();
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PD_CONFIG();
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PD_ALLOFF();
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trig_r_CONFIG();
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trig_SW(false);
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GAIN_SW_CONFIG();
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AGC_GAIN_SW(false);
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power_gpio_init();
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eeprom_control(OFF);
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}
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#endif
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/*******************************************************************************
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* @section IDLE Idle State Handler
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* @brief Low-power idle loop processing
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* @details Handles security operations (LESC if enabled), flushes NRF_LOG
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* buffer, then enters System ON sleep via nrf_pwr_mgmt_run().
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* CPU wakes on any enabled interrupt (BLE, timer, GPIO).
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******************************************************************************/
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static void idle_state_handle(void)
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{
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#if FEATURE_SECURE_CONNECTION
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security_idle_state_handle();
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#endif
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if (NRF_LOG_PROCESS() == false) {
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nrf_pwr_mgmt_run();
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}
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}
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/*******************************************************************************
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* @section MAIN Application Entry Point
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* @brief System initialization and main loop
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* @details Boot sequence: Power latch → UART → Logging → GPIO → Timers →
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* Config → BSP → Power Mgmt → BLE Stack → GAP → GATT → Services →
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* Advertising → Connection Params → Power Button Handler.
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* Main loop runs idle_state_handle() for low-power operation.
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* @note Initialization order is critical for proper hardware bringup.
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******************************************************************************/
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/* LED slow blink macro (approximately 0.5 second period) */
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#define LED_BLINK() do { \
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NRF_P0->OUTSET = (1 << 12); \
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for (volatile uint32_t _d = 0; _d < 1000000; _d++); \
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NRF_P0->OUTCLR = (1 << 12); \
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for (volatile uint32_t _d = 0; _d < 1000000; _d++); \
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} while(0)
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#define LED_PAUSE() do { \
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for (volatile uint32_t _d = 0; _d < 2000000; _d++); \
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} while(0)
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int main(void)
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{
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#if FEATURE_SECURE_CONNECTION
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bool erase_bonds_local = false;
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#endif
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/* Configure LED output (P0.12) */
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NRF_P0->DIRSET = (1 << 12);
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power_hold_init();
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if (power_off_duble_prohibit) return 0;
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cnt_s = 0;
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uart_handler_init();
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nrf_delay_ms(100); /* Wait for UART peripheral stabilization */
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log_init();
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g_log_enable = true; /* Enable boot logging (set to false to disable boot logs) */
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LOG_PRINTF("\r\n\r\n");
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LOG_PRINTF("========================================\r\n");
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LOG_PRINTF(" vivaMayo UART OK\r\n");
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LOG_PRINTF("========================================\r\n");
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#if DEBUG_MINIMAL_BOOT
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LOG_PRINTF("[1] GPIO (minimal)\r\n");
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minimal_gpio_init();
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#else
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LOG_PRINTF("[1] GPIO (full)\r\n");
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gpio_init();
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#endif
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info4 = false;
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LOG_PRINTF("[2] Timers\r\n");
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timers_init();
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LOG_PRINTF("[4] Buttons/LEDs\r\n");
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#if FEATURE_SECURE_CONNECTION
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buttons_leds_init(&erase_bonds_local);
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erase_bonds = erase_bonds_local;
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#else
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bool dummy_erase;
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buttons_leds_init(&dummy_erase);
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#endif
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LOG_PRINTF("[5] PWR\r\n"); nrf_delay_ms(10);
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power_management_init();
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LOG_PRINTF("[6] BLE\r\n"); nrf_delay_ms(10);
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ble_stack_init();
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/* Flash Storage - must be after BLE stack (SoftDevice required) */
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/* and before GAP params (to use loaded config for device name) */
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LOG_PRINTF("[6.5] FDS\r\n"); nrf_delay_ms(10);
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fs_storage_init();
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config_load();
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LOG_PRINTF("[6.6] Config\r\n");
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load_device_configuration();
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/* W25Q32 Flash - NOT initialized during boot
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* Initialize via BLE command after advertising starts
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* (부팅 시 SPIM + BSP 이벤트 충돌로 SYSTEM OFF 발생 방지) */
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LOG_PRINTF("[7] GAP\r\n"); nrf_delay_ms(10);
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gap_params_init();
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gatt_init();
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services_init();
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LOG_PRINTF("[8] ADV\r\n"); nrf_delay_ms(10);
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advertising_init();
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conn_params_init();
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power_ctrl_timers_start();
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/* advertising_start() is invoked from power_ctrl.c after 5ms delay */
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nrf_delay_ms(20);
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LOG_PRINTF("=== READY ===\r\n");
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/*----------------------------------------------------------
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* Main Loop: Idle State Handler
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*----------------------------------------------------------*/
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for (;;)
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{
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idle_state_handle();
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}
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}
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