NV32F100x 系列软件修改-应用笔记

#define WDOG_Unlock() DisableInterrupts; WDOG->CNT = 0x20C5; WDOG->CNT = 0x28D9; EnableInterrupts

1. /*

2. *看门狗喂狗操作，在喂狗之前总中断需要关闭，以防在喂狗期间中断打断，造成系统复位

3. */

4. void WDOG_Feed(void)

5. {

6. DisableInterrupts; //关总中断

7. WDOG->CNT = 0x02A6;//喂狗序列需要在 128 个总线时钟周期内完成

8. WDOG->CNT = 0x80B4;

9. EnableInterrupts; //开总中断

10. }

1. __ramfunc uint16_t Flash_Program1LongWord(uint32_t wNVMTargetAddress, uint32_t dwData)

2. {

3. uint16_t err = FLASH_ERR_SUCCESS;

4.

5. //判断是否为字对齐

6. if(wNVMTargetAddress & 0x03)

7. {

8. err = FLASH_ERR_INVALID_PARAM;

9. return (err);

10. }

11. // 清除错误标志

12. EFMCMD = FLASH_CMD_CLEAR;

13. //写入数据到对应的地址中

14. DisableInterrupts;

15. M32(wNVMTargetAddress) = dwData;

16. //加载编程命令

17. EFM_LaunchCMD(FLASH_CMD_PROGRAM);

18. EnableInterrupts;

19. return (err);//返回状态

20. }

1. __ramfunc uint16_t Flash_Program2LongWords(uint32_t wNVMTargetAddress, uint32_t dwData0, uint32_t dwData1)

2. {

3. uint16_t err = FLASH_ERR_SUCCESS;

4.

5. //判断是否为字对齐

6. if(wNVMTargetAddress & 0x03)

7. {

8. err = FLASH_ERR_INVALID_PARAM;

9. return (err);

10. }

11. // 清除错误标志

12. EFMCMD = FLASH_CMD_CLEAR;

13. DisableInterrupts;

14. M32(wNVMTargetAddress) = dwData0;//存放数据到以目标地址为起始的 4 个字节的空间中

15. EFM_LaunchCMD(FLASH_CMD_PROGRAM);//0x20000000,加载编程命令

16. EnableInterrupts;

17. wNVMTargetAddress = wNVMTargetAddress +4;//地址是字对齐的，地址向后移一个字

18.

19. EFMCMD = FLASH_CMD_CLEAR;

20. DisableInterrupts;

21. M32(wNVMTargetAddress) = dwData1;//第二个数据放入处理后的地址的 4 个字节的空间中

22. EFM_LaunchCMD(FLASH_CMD_PROGRAM);//加载编程命令

23. EnableInterrupts;

24. return (err);//返回处理状态

25. }

1. uint16_t EEPROM_WriteByte(uint32_t adr, uint8_t Data)

2. {

3. uint32_t err = EEPROM_ERR_SUCCESS;

4. uint32_t data_mask;

5. uint32_t r_data;

6. uint32_t data_m0;

7. uint32_t data_m1;

8. uint32_t word_adr = adr &0x3fc;

9. uint32_t b_sit= adr & 0x3;

10.

11. //先让高位为 FF

12. data_m0 = Data << b_sit*8;

13. data_mask = 0xFFFFFFFF<<(b_sit+1)*8;

14. //然后让低位为 FF

15. data_m1 = 0xFFFFFFFF >> (32-b_sit*8);

16. data_m1 = data_m1 | data_m0 | data_mask ;

17. r_data = EEPROM_Read(word_adr);

18. r_data |= 0xFF<< b_sit*8;

19. data_m1 = data_m1 & r_data;

20.

21. err = EEPROM_Write(word_adr , data_m1);

22.

23. return(err);

24. }

1. //注释掉宏定义则使用内部 31.26K 时钟，主频 40M

2. //#define TRIM_IRC

1. ADC->SC2 &= ~ADC_SC2_ADTRG_MASK;//先关闭硬件触发，停止采样

2. //...

3. //ADC 读取 FIFO 操作

4. //...

5. ADC->SC2 |= ADC_SC2_ADTRG_MASK; //再打开硬件触发，开始采样

1. #define CRYST_HIGH_GAIN

1. while((ICS->S&ICS_S_LOCK_MASK)!=ICS_S_LOCK_MASK)