vijayragavalu
Member level 1
hi all
can any one tell me how to delete at89s51 memory through Serial programming mode(SPI mode:MOSI,MISO,SCK lines)
i read doc2487.pdf file.as per that, i sent Programming Enable command(0xAC,0x53,0x00) first and i get back (0x69).but my problem is i am not able to erase whole memory with the help of commands 0xAC,0x80,0x00,0x00.
i confused in RST logic . in my program i reset(logic High) at89s51 before entering to Programming enable and make it logic low(rst pin) after erase cycle.
still i have a problem can you tell me what is problem or give me related links to rectify it please
can any one tell me how to delete at89s51 memory through Serial programming mode(SPI mode:MOSI,MISO,SCK lines)
i read doc2487.pdf file.as per that, i sent Programming Enable command(0xAC,0x53,0x00) first and i get back (0x69).but my problem is i am not able to erase whole memory with the help of commands 0xAC,0x80,0x00,0x00.
i confused in RST logic . in my program i reset(logic High) at89s51 before entering to Programming enable and make it logic low(rst pin) after erase cycle.
still i have a problem can you tell me what is problem or give me related links to rectify it please