STM8-EEPROM.zip_STM8 串口_STM8 EEPROM_STM8 EEPROM_STM8 eepro

#include "iostm8s103f3.h" #include "UART1.h" #define uchar unsigned char #define uint unsigned int #define ulong unsigned long void PORT_Init(void) { PD_DDR=0xbf; //RXD脚输入PD6，其他输出 PD_CR1=0xff; } void CLOCK_Init(void) { CLK_ECKR=0x01; //开启外部时钟 while(!(CLK_ECKR&0x02)); //判断外部时钟是否准备就绪 CLK_CKDIVR=0xF8; //0B11111000 CPU不分频 CLK_SWR=0xB4; //切换到外部时钟 while(!(CLK_SWCR&0x08)); //等待目标时钟源就绪 CLK_SWCR|=0x02; //切换启动 } void FLASH_Init(void) { FLASH_CR1=0x00; FLASH_CR2=0x00; FLASH_NCR2=0xFF; FLASH_DUKR=0xae; FLASH_DUKR=0x56; while(!(FLASH_IAPSR&0x08)); //等待解密完成 } void EEPROM_Write_NByte(uchar Addr,uchar *Data_Addr,uchar Lenth) //写N个字节 { uint *p; for(;Lenth>0;Lenth--) { p=(uint *)(Addr+0x4000); *p=*Data_Addr; while(!(FLASH_IAPSR&0x04)); //等待写操作完毕 Data_Addr++; Addr++; } } void EEPROM_Read_NByte(uchar Addr,uchar *Data_Addr,uchar Lenth) //读N个字节 { uint *p; for(;Lenth>0;Lenth--) { p=(uint *)(Addr+0x4000); *Data_Addr=*p; Data_Addr++; Addr++; } } int main( void ) { uchar Dat; ulong i; PORT_Init(); UART1_Init(); CLOCK_Init(); FLASH_Init(); EEPROM_Read_NByte(0x00,&Dat,1); Dat++; EEPROM_Write_NByte(0x00,&Dat,1); while(1) { UART1_SendByte(Dat); for(i=0;i<100000;i++); } }