RetroBrew Computers Forum: General Discussion » BB80 (previously Muntz80), Bare Bones Z80 computer

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BB80 (previously Muntz80), Bare Bones Z80 computer [message #10545]

Mon, 11 December 2023 11:42

plasmo
Messages: 916
Registered: March 2017
Location: New Mexico, USA

Senior Member

I'm successful getting a barebone Z80 computer up and running. It consists of Z80, RAM, and a 22V10 for bootstrap ROM, address decode, and serial port. The bit-bang serial bootstrap code is 35 bytes and resides inside the logic array of 22V10. BB80 communicates to outside world via a bit-bang serial transmit and receive. The Z80 is clocked at 25.175MHz. A homepage for BB80 is here.

The design concept for BB80 and Muntz65 are sufficiently demonstrated to go for a combined pc board for both processors.
Bill
/forum/index.php?t=getfile&id=2962&private=0

/forum/index.php?t=getfile&id=2962&private=0

/forum/index.php?t=getfile&id=2963&private=0

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Attachment: BB80_solder_F.jpg
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