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Re: CB030, A 68030 SBC for hobbyists [message #7873 is a reply to message #7870] Tue, 14 July 2020 18:07 Go to previous messageGo to previous message
plasmo is currently offline  plasmo
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Registered: March 2017
Location: New Mexico, USA
Senior Member
I verified on my working lab hardware that CPLD is indeed "cb030_r1_release_cf_fix_new100hz_irq" and the EEPROM is "cb030_r0_6_hardware-handshake_CPM_EhBasic.bin".

Do a dump of location 0x1b000
du 1b000 10

> du 1b000 10
0001B000  60 04 30 2E 36 00 11 FC 00 00 F0 0A 46 FC 27 00   `.0.6..|..p.F|'.
0001B010  70 08 4E 7B 00 02 21 FC 00 01 B0 4C 00 8C 61 00   p.N{..!|..0L..a.
0001B020  00 22 11 FC 00 E0 E0 06 11 FC 00 01 E0 01 11 FC   .".|.``..|..`..|
0001B030  00 EF E0 07 61 00 00 0C 11 FC 00 40 E0 06 42 80   .o`.a....|.@`.B.
0001B040  4E 75 08 38 00 07 E0 07 66 F8 4E 75 0C 40 00 17   Nu.8..`.fxNu.@..
0001B050  64 00 00 0A E5 48 20 7B 00 06 4E 90 4E 73 00 01   d...eH {..N.Ns..
0001B060  B0 00 00 01 B0 BA 00 01 B0 C0 00 01 B0 D2 00 01   0...0:..0@..0R..
0001B070  B0 DE 00 01 B0 EC 00 01 B0 EE 00 01 B0 F0 00 01   0^..0l..0n..0p..
0001B080  B0 F8 00 01 B1 00 00 01 B1 22 00 01 B1 2A 00 01   0x..1...1"..1*..
0001B090  B1 36 00 01 B1 3E 00 01 B1 F4 00 01 B0 F2 00 01   16..1>..1t..0r..
0001B0A0  B1 32 00 01 B1 36 00 01 B2 B0 00 01 B2 B8 00 01   12..16..20..28..
0001B0B0  B2 BA 00 01 B2 AC 00 01 B2 BC 4E F9 00 01 50 BC   2:..2,..2<Ny..P<
0001B0C0  08 38 00 00 F0 02 67 00 00 06 70 01 4E 75 42 80   .8..p.g...p.NuB.
0001B0D0  4E 75 61 EC 4A 40 67 FA 10 38 F0 06 4E 75 08 38   NualJ@gz.8p.Nu.8
0001B0E0  00 02 F0 02 67 F8 11 C1 F0 06 4E 75 4E 75 4E 75   ..p.gx.Ap.NuNuNu
0001B0F0  4E 75 10 3C 00 FF 4E 75 42 79 00 01 B2 DA 4E 75   Nu.<..NuBy..2ZNu

You should see above output. I'm checking to see whether BIOS are present in your EPROM.

To simplify the problem, I like you to remove the CF disk and do 'bo' again. You should be able to boot into CP/M to drive A without CF disk
--------------------------------------
I have a couple questions:
* CB030 can consume quite a bit of current, up to 750mA at 5V. How is your board powered?
* What is your EPROM?

Could you send me a picture of your board?

Bill

Edit: The files on CF drive are here:
https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=b uilderpages:plasmo:cb030:cb030_rev1:cpm68k_distro.zip

There are quite a number of files there so you should use gkermit to transfer multiple files to your new CF disk.

[Updated on: Tue, 14 July 2020 18:12]

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