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ADP: Servicetastatur #13768
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ADP: Servicetastatur #13768
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commit f672616 Author: stonedDiscord <[email protected]> Date: Sat May 31 16:41:23 2025 +0200 cleanup commit a281068 Author: stonedDiscord <[email protected]> Date: Sat May 31 15:05:06 2025 +0200 doesnt work commit e5a0981 Author: stonedDiscord <[email protected]> Date: Sat May 31 14:01:26 2025 +0200 screen works commit 7426aa4 Author: stonedDiscord <[email protected]> Date: Sat May 31 12:53:39 2025 +0200 LCD read commit 42439a9 Author: stonedDiscord <[email protected]> Date: Sat May 31 12:33:41 2025 +0200 comments and lcd work commit 7040399 Author: stonedDiscord <[email protected]> Date: Sun May 11 19:14:08 2025 +0200 entire address commit 9537c6b Author: stonedDiscord <[email protected]> Date: Sun Apr 6 14:06:55 2025 +0200 i2c and attempt at lcd commit 4a3d89a Author: stonedDiscord <[email protected]> Date: Sat Apr 5 20:26:10 2025 +0200 servicetastatur
This is the service keyboard for all the machines in the adp folder. Picture, schematic and ROM (not by me): |
Can it be made to write out a valid EEPROM? If so, we'd want to include that in the ROM set. Also, how does this interact with the actual machines? |
It plugs into the machine with a 6pin connector on a cable. |
Perhaps the |
ROM_REGION(0x800, "eeprom", 0)
ROM_FILL(0x000, 0x7ff, 0xff ) sadly didn't change anything |
Just to be sure:
|
same result |
It's likely the I2C comms aren't right - it might need a pull-up resistor on SCL and/or SDA or something of that nature. |
There are no resistors (or other components) on the lines between the CPU and the EEPROM. |
New machines marked as NOT_WORKING
Merkur Service Testgerät (ADP)