yongqin2005
Junior Member level 3
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fpga ata
when design ATA host , i met with the problem:after hardware reset, power on or software reset, the host designed by me , has red the value from the registers such as status register, LBA low register , LBA High register LBA mid register, or Device register in ATA hard disk(MAXTOR 250G). To my surprise, the values are the same: 0xFF7F. Why????????? help me , thank u again !!!!
when design ATA host , i met with the problem:after hardware reset, power on or software reset, the host designed by me , has red the value from the registers such as status register, LBA low register , LBA High register LBA mid register, or Device register in ATA hard disk(MAXTOR 250G). To my surprise, the values are the same: 0xFF7F. Why????????? help me , thank u again !!!!