K1Guitar/driver/drv_nvm.h

#ifndef _DRV_NVM_H_
#define _DRV_NVM_H_

#include <stdint.h>

#define NVM_VERSION 0x03
#define NVM_LANG_CN     0
#define NVM_LANG_EN     1
#define NVM_USB_MIDI    0
#define NVM_USB_UPDATE  1
#ifndef FLASH_BASE
#define FLASH_BASE      0x08000000UL
#endif
#define fwname                  "BRS08L\x00"
#define fwdata                  __DATE__
#define fwtime                  __TIME__

/* 参数固定在 0x0803FC00（256KB 末尾倒数第 2 个 1KB）。
 * 地址不能跟 SECTOR_SIZE 走：App 与 Boot 对该宏不一致时，Boot 会读错，
 * USB 更新标志对不上。AT32F403A 扇区是 2KB，擦除必须对齐扇区起点，
 * 否则 0->1（MIDI->更新）写不进去。应用程序链接范围必须停在该扇区之前。 */
#define NVM_FLASH_SECTOR             2048UL
#define INNER_FLASH_SAVE_ADDRESS (FLASH_BASE + 0x00040000UL - 1024UL)
#define INNER_FLASH_SECTOR_ADDRESS (INNER_FLASH_SAVE_ADDRESS & ~(NVM_FLASH_SECTOR - 1UL))

/* 备份寄存器在系统复位后仍保留。确认 USB 更新时先写下这个值，
 * Boot 即使没读到 Flash 里的 UsbMode，不按圆键 4 也会停在烧录模式。 */
#define NVM_USB_BOOT_MAGIC           0xB007u



#pragma pack(push, 1)
typedef struct {
  uint16_t     BPM;
  uint8_t     Timbre;
  uint8_t     BandVol;
  uint8_t     StringVol;
  uint8_t     MIcVol;
  uint8_t     MicRev;
  uint8_t     AutoCloseTime;
  uint8_t     Transpose;
  uint8_t     BluetoothSW; /* 0=关 1=开 */
  uint8_t     Param1;
  uint8_t     Param2;
  uint8_t     Param3;
  uint8_t     Language;    /* 0=中文 1=English；本轮仅记忆，不切全机文案 */
  uint8_t     UsbMode;     /* 0=USB MIDI 1=USB更新 */
} DeviceParam_Type;

typedef struct {
  uint8_t Signature[4];
  uint8_t Name[12];
  uint8_t Data[16];
  uint8_t Time[16];
  uint8_t nvm_version;
  uint8_t lock_mcu_flash;
  uint8_t lock_mcu_swd;
  
  uint32_t sn_key;
  // 随机数
  //uint32_t seed;
  // 芯片密钥，用于防止镜像文件复制到另一颗MCU上
  //uint32_t chip_key[12];
  // 如果值等于MAGIC_POWER_ON_RESTORE，恢复默认值(不包含动态参数)
  uint16_t RestoreParameter; // MAGIC_POWER_ON_RESTORE

  uint8_t cal_time;
    // 机器参数
  DeviceParam_Type param; 
} NvmParam_Type;


typedef struct {
  NvmParam_Type data;
  uint16_t sum[2];
} NvmData_Type;
#pragma pack(pop)


#define MAGIC_POWER_ON_RESTORE 0xA637

extern void drv_nvm_init(void);
NvmParam_Type * drv_nvm_param_ptr(void);
uint8_t drv_nvm_save_to_flash(void);
void drv_nvm_load_default_calibration_value(NvmParam_Type * pData, uint8_t withDynamic);
//void drv_nvm_load_default_calibration_dynamic_value(NvmParam_Type * pData);
void drv_nvm_load_default_calibration_static_value(NvmParam_Type * pData, uint8_t reset_open_status);//gh,2024.1.3    reset_open_status是1就是恢复出厂设置，是0就是开机



uint8_t drv_nvm_get_param_value_by_id (uint8_t nvmId);

#include "at32f403a_407_bpr.h"
#include "at32f403a_407_crm.h"
#include "at32f403a_407_pwc.h"

static inline void drv_nvm_bpr_open(void)
{
  crm_periph_clock_enable(CRM_PWC_PERIPH_CLOCK, TRUE);
  crm_periph_clock_enable(CRM_BPR_PERIPH_CLOCK, TRUE);
  pwc_battery_powered_domain_access(TRUE);
  while (PWC->ctrl_bit.bpwen == FALSE)
  {
  }
}

static inline void drv_nvm_arm_usb_boot(void)
{
  drv_nvm_bpr_open();
  BPR->dt1 = NVM_USB_BOOT_MAGIC;
}

static inline uint8_t drv_nvm_usb_boot_armed(void)
{
  drv_nvm_bpr_open();
  return ((BPR->dt1 & 0xFFFFu) == NVM_USB_BOOT_MAGIC) ? 1u : 0u;
}

static inline void drv_nvm_clear_usb_boot_arm(void)
{
  drv_nvm_bpr_open();
  BPR->dt1 = 0;
}

#endif // _DRV_NVM_H_