IAR STM8 1.2 直接使用__eeprom关键字访问EEPROM

2019-12-23 18:36发布

IAR STM8 1.2 直接使用__eeprom关键字访问EEPROM

STM8L15X:
#include "stm8l15x_conf.h"

void __eeprom_write_8(unsigned short addr_eep,unsigned char data)
{
  FLASH_WaitForLastOperation(FLASH_MemType_Data);  
  FLASH_Unlock(FLASH_MemType_Data);
  
  FLASH_ProgramByte(addr_eep, data);
  
  FLASH_WaitForLastOperation(FLASH_MemType_Data);
  FLASH_Lock(FLASH_MemType_Data);  
}

void __eeprom_write_16(unsigned short addr_eep,unsigned short data)
{
  FLASH_WaitForLastOperation(FLASH_MemType_Data);  
  FLASH_Unlock(FLASH_MemType_Data);
  
  FLASH_ProgramByte(addr_eep,   data/256);
  FLASH_WaitForLastOperation(FLASH_MemType_Data);
  
  FLASH_ProgramByte(addr_eep+1, data%256);
  FLASH_WaitForLastOperation(FLASH_MemType_Data);
  
  FLASH_Lock(FLASH_MemType_Data);  
}

void __eeprom_write_32(unsigned short addr_eep,unsigned long data)
{
  FLASH_WaitForLastOperation(FLASH_MemType_Data);  
  FLASH_Unlock(FLASH_MemType_Data);
  
  FLASH_ProgramByte(addr_eep,   (unsigned char)(data>>24));
  FLASH_WaitForLastOperation(FLASH_MemType_Data);
  
  FLASH_ProgramByte(addr_eep+1, (unsigned char)(data>>16));
  FLASH_WaitForLastOperation(FLASH_MemType_Data);
  
  FLASH_ProgramByte(addr_eep+2,   (unsigned char)(data>>8));
  FLASH_WaitForLastOperation(FLASH_MemType_Data);
  
  FLASH_ProgramByte(addr_eep+3, (unsigned char)(data>>0));
  FLASH_WaitForLastOperation(FLASH_MemType_Data);
  
  FLASH_Lock(FLASH_MemType_Data);  
}


void __eeprom_write_many(unsigned short addr_eep,unsigned short size,unsigned short dummy,unsigned short addr_ram)
{
  
  FLASH_WaitForLastOperation(FLASH_MemType_Data);  
  FLASH_Unlock(FLASH_MemType_Data);
  
  for(unsigned short i=0;i<size;i++)
  {
     FLASH_ProgramByte(addr_eep+i,   *((unsigned char *)(addr_ram)+i));
     FLASH_WaitForLastOperation(FLASH_MemType_Data);
  }
  
  
  FLASH_Lock(FLASH_MemType_Data);  
  
}



STM8S:
#include "stm8s_conf.h"

void __eeprom_write_8(unsigned short addr_eep,unsigned char data)
{
  FLASH_WaitForLastOperation(FLASH_MEMTYPE_DATA);  
  FLASH_Unlock(FLASH_MEMTYPE_DATA);
  
  FLASH_ProgramByte(addr_eep, data);
  
  FLASH_WaitForLastOperation(FLASH_MEMTYPE_DATA);
  FLASH_Lock(FLASH_MEMTYPE_DATA);  
}

void __eeprom_write_16(unsigned short addr_eep,unsigned short data)
{
  FLASH_WaitForLastOperation(FLASH_MEMTYPE_DATA);  
  FLASH_Unlock(FLASH_MEMTYPE_DATA);
  
  FLASH_ProgramByte(addr_eep,   data/256);
  FLASH_WaitForLastOperation(FLASH_MEMTYPE_DATA);
  
  FLASH_ProgramByte(addr_eep+1, data%256);
  FLASH_WaitForLastOperation(FLASH_MEMTYPE_DATA);
  
  FLASH_Lock(FLASH_MEMTYPE_DATA);  
}

void __eeprom_write_32(unsigned short addr_eep,unsigned long data)
{
  FLASH_WaitForLastOperation(FLASH_MEMTYPE_DATA);  
  FLASH_Unlock(FLASH_MEMTYPE_DATA);
  
  FLASH_ProgramByte(addr_eep,   (unsigned char)(data>>24));
  FLASH_WaitForLastOperation(FLASH_MEMTYPE_DATA);
  
  FLASH_ProgramByte(addr_eep+1, (unsigned char)(data>>16));
  FLASH_WaitForLastOperation(FLASH_MEMTYPE_DATA);
  
  FLASH_ProgramByte(addr_eep+2,   (unsigned char)(data>>8));
  FLASH_WaitForLastOperation(FLASH_MEMTYPE_DATA);
  
  FLASH_ProgramByte(addr_eep+3, (unsigned char)(data>>0));
  FLASH_WaitForLastOperation(FLASH_MEMTYPE_DATA);
  
  FLASH_Lock(FLASH_MEMTYPE_DATA);  
}


void __eeprom_write_many(unsigned short addr_eep,unsigned short size,unsigned short dummy,unsigned short addr_ram)
{
  
  FLASH_WaitForLastOperation(FLASH_MEMTYPE_DATA);  
  FLASH_Unlock(FLASH_MEMTYPE_DATA);
  
  for(unsigned short i=0;i<size;i++)
  {
     FLASH_ProgramByte(addr_eep+i,   *((unsigned char *)(addr_ram)+i));
     FLASH_WaitForLastOperation(FLASH_MEMTYPE_DATA);
  }
  
  FLASH_Lock(FLASH_MEMTYPE_DATA);  
}


主程序测试:
volatile __eeprom __no_init char  eep_u8;
volatile __eeprom __no_init short eep_u16;
volatile __eeprom __no_init long  eep_u32;

void main( void )
{
  eep_u8=123;
  eep_u16=12345;
  eep_u32=123456789;
   
  while(1);

}
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42条回答
Sniperrabbit
1楼-- · 2019-12-28 19:20
为什么前面定义了那么多函数,后面直接用“=”赋值?这当中有什么联系啊不明白
wsm80828
2楼-- · 2019-12-29 00:00
有用 谢谢
cyberjok
3楼-- · 2019-12-29 03:11
楼主,能分享一下,哪里可以找到文档说明 __eeprom 这个关键字扩展方法吗?

我看了官方例程程是:
int __eeprom_wait_for_last_operation(void)
{
  FLASH_Status_TypeDef status = FLASH_WaitForLastOperation(FLASH_MEMTYPE_DATA);
  return !!(status & (  FLASH_STATUS_SUCCESSFUL_OPERATION
                      | FLASH_STATUS_END_HIGH_VOLTAGE));
}

void __eeprom_program_byte(unsigned char __near * dst, unsigned char v)
{
  FLASH_ProgramByte((u32)dst, (u8)v);
}

void __eeprom_program_long(unsigned char __near * dst, unsigned long v)
{
  FLASH_ProgramWord((u32)dst, (u32)v);
}

这三个函数,试了,一下,总有莫名其妙的问题。。。
konway99
4楼-- · 2019-12-29 05:56
 精彩回答 2  元偷偷看……
mculjf
5楼-- · 2019-12-29 07:53
__eeprom关键字访问EEPROM
eagle_avr
6楼-- · 2019-12-29 08:22
好东西,感谢楼主!

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