Dominus wrote:Maybe it is the pc zhat is busted
That can be.. Iam not sure..
I tried that kouwell KW-530D in one if my 386 motherboards.. Then the card is working. When i try this controller in my XT machine it wont work with 1.44mb floppys..
So i made an dos 6.22 720KB boot floppy and an 1.44mb floppy.
With that 720KB boot floppy my XT machine will boot. Then tried to read out an 1.44mb floppy disk. But cant read it..
Does somebody has an scheme of that J2 section of this card..
I dont know which pin is pin 1 and so on..
Otherwise the onboard bios chip is bad...
How long could an c-mos be alive?
Thing i going to buy an eeprom reader.. I hope i can backup it in a good shape, so hoping i can flash it again on an new eeprom..
Like to have 1.44mb hardware support on my XT machine..
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KOUWELL ELECTRONIC CORPORATION
KW-530/KW-530D
Card Type Floppy drive controller
Floppy drives supported 360KB, 720KB, 1.2MB, 1.44MB
Data Bus 8-bit ISA
CONNECTIONS
Function Location
Diskette controller connector CN1
FLOPPY DRIVE CONTROL ADDRESS SELECTION
Address J2
Primary Pins 1 & 2 closed
Secondary Pins 2 & 3 closed
HARD DRIVE CONTROLLER STATUS REGISTER ADDRESS SELECTION
Address J2
1F7H (no hard disk controller Pins 4 & 5 closed
installed)
177H (hard disk controller Pins 5 & 6 closed
installed)
USER CONFIGURABLE SETTINGS
Function Label Position
» Factory configured - Do not alter J1 Unidentified
» Factory configured - Do not alter J3 Unidentified
» Factory configured - Do not alter RP1 Unidentified
» Factory configured - Do not alter RP2 Unidentified
1.2MB or 1.44MB drive installed in SW1/1 On
8086/8088 or 80286/80386 system
1.2MB or 1.44MB drive installed in SW1/1 Off
80286/80386 system only
» Factory configured - Do not alter SW1/2 Unidentified
Drive A is 360KB or 720KB SW1/3 On
Drive A is 1.2MB or 1.44MB SW1/3 Off
Drive B is 360KB or 720KB SW1/4 On
Drive B is 1.2MB or 1.44MB SW1/4 Off
Note: SW1/2 and SW1/3 only function when SW1/1 is in the On position.
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~ At least it can do black and white~