原子哥请问为什么FLASH某些地址不能写

逆行者

[mw_shl_code=c,true]#define flash_start_address 0x8006000//能读写 //#define flash_start_address 0x8046000//不能写,0x8020000也不能写，其它更不能 void write_data(u16 number) {u16 temp,appoint_address; if(number<12) {FLASH_Unlock(); FLASH_ErasePage(flash_start_address+number*0x800); for(temp=0;temp<1024;temp++) {appoint_address=flash_start_address+number*0x800+temp*2; FLASH_ProgramHalfWord(appoint_address,prog_write_buffer[temp]); } FLASH_Lock(); } } void read_data(u16 number) {u16 temp,appoint_address,p; if(number<12) {for(temp=0;temp<1024;temp++) {//appoint_address=number*0x800+temp*2; appoint_address=flash_start_address+number*0x800+temp*2; p = *(vu16*)appoint_address; // p1 = *(vu8*)(appoint_address +1); prog_write_buffer[temp]=p; // prog_write_buffer[temp]=p_x[appoint_address]+(p_x[appoint_address+1]*0x100); } } }[/mw_shl_code]

逆行者

u16 appoint_address;    改成 u32 appoint_address;
网上花40块买了个仿三菱程序，调了一个月了，亏大了，还好现在调好了。已经成功用在我厂流水线

styleno1

是这么用的吗？你再看看。

逆行者

回复【2楼】styleno1:
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#define flash_start_address 0x8006000//能读写
0x8020000就写不进去了
哪里错了啊，新手啊

lycreturn

回复【3楼】逆行者:
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 你用的什么芯片     有128K flash没？

逆行者

回复【4楼】lycreturn:
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103ZE 有512K

正点原子

检查下这个函数是否正确了。

逆行者

回复【6楼】正点原子:
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#define flash_start_address 0x8006000  

const signed short int  x[0x770C] __at (flash_start_address+2)=
{0XBAD8,0X0000,0X0000,0X2020,0X2020,0X2020,0X2020,0X2020,0X2020,0X2020,
 0X2020,0X2020,0X2020,0X2020,0X2020,0X2020,0X2020,0X2020,0X2020,0X2020,
 0X2020,0X2020,0X2020,0X09F4,0X0BFF,0X01F4,0X03E7,0X0E64,0X0EC7,0X0EDC,
 0X0EFF,0X0190,0X03FE,0X0000,0X0000,0X0000,0X0000,0X0000,0X0000,0X0000,
 0X0000,0X0000,0X0000,0X0000,0X0000,
 0x2400,0xC500,0X2401,0XC501,0X2402,0XC502,0X2403,0XC503,0X000F,
 0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,
 0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,
 0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,
 0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,
 0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,
 0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,
 0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF,0XFFFF};
 
const u8   p_x[2] __at (flash_start_address)={0x08,0x00};
函数是正确的，只能写#define flash_start_address 0x8006000，其它就不能写