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| author | Andreas Baumann <mail@andreasbaumann.cc> | 2022-11-11 17:23:10 +0100 |
|---|---|---|
| committer | Andreas Baumann <mail@andreasbaumann.cc> | 2022-11-11 17:23:10 +0100 |
| commit | e0038674b551353d2e09276725a0471026cc24da (patch) | |
| tree | 25d632618e738be2922f9a86479c36ff5b93da1b | |
| parent | a112867ebd4c32f2172f7ea228544967f2902ba7 (diff) | |
| download | www-andreasbaumann-cc-e0038674b551353d2e09276725a0471026cc24da.tar.gz www-andreasbaumann-cc-e0038674b551353d2e09276725a0471026cc24da.tar.bz2 | |
updates on the status of the IMC-2001
| -rw-r--r-- | content/hardware/imc-2001.md | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/content/hardware/imc-2001.md b/content/hardware/imc-2001.md index c21225c..1fca25c 100644 --- a/content/hardware/imc-2001.md +++ b/content/hardware/imc-2001.md @@ -17,7 +17,11 @@ Trying to fix several issues: - the paddle/joystick connectors miss some legs for putting them into the sockets on the motherboard - sometimes I get into the monitor, lower-nibble bit 3 of the key - pressed is missing + being pressed is missing, unclear where it is lost, I suspect a + bad register on the motherboard holding the current ASCII value of + the key pressed or something similar. +- ROM 1 with BASIC is broken (and gets really hot). This explains + the booting issues.. (will be tricky to get a replacement) - possibly much more Known things to work @@ -29,6 +33,7 @@ Known things to work ROM, video circuit seems to be just fine). - Monitor is working just fine (which is sort of amazing for such an old CRT monitor). +- I can boot from a Apple \]\[ CP/M 56k floppy and I get a prompt. # Images @@ -36,6 +41,10 @@ From the outside: {{< figure src="/images/hardware/imc-2001/computer_full.jpg" alt="IMC-2001" >}} +Booting into Apple \]\[ CP/M 56k: + +{{< figure src="/images/hardware/imc-2001/cpm_40chars.jpg" alt="IMC-2001" >}} + The motherboard and floppy drives: {{< figure src="/images/hardware/imc-2001/motherboard_internal.jpg" alt="IMC-2001" >}} |