On Tuesday, April 2, 2013 7:39:51 AM UTC+10, bas dejong wrote:
> Hi,
>
> Many years go I built various 68020/68000/68008 systems on experimenters print (wirewrap). All run
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> OS9, and I wrote the monitor/bootloaders in assembler, and also device drivers for the various chips in use.
I'm very interested in the bootloader information. I have here an Australian SECAD AS-68K which has a damaged boot ROM, so doesn't boot anymore. I have several other OS-9/68K machines (MM/1, Atari STe) and would love to resurrect the SECAD.
The SECAD is a 68000 based computer with an IBM ISA (8-bit) bus. Keyboard and serial ports are on-board, but everything else is using IBM PC cards (multi-io, cga/ega/vga and hard disk)
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> To get these running I often 'switched off' the crc check in the kernel, just change 1byte :-) All systems hook together in a NFS network.
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> I like os9 very much, and have written all kinds of software. Including graphic library and a lot of DSP (digital signal processing):
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> Morse, packet, bpsk, fft, oscilloscope,, fileters etc. All just for fun.
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> Some time ago my scsi-board broke down, I and just today I managed to rebuilt it and got is running again...
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> In case you're interested take a look at
www.dutch.nl/bdj. If you need more info pse let me know!
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>
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> Bas
Regards, Bob Devries
Dalby, QLD, Australia