Various ideas for a flip-chip tester.
- io is a copy of the I/O board, for reference and component
placement.
- TestJig is an incomplete notion involving a PCI slot.
- io2 is another copy of the I/O board.
- iotst is an early version of the tester, which connects the
I/O board from the ConsoleEmu project to a DEC connector block.
- cblockyeesh is a messy connector block mounting board that
attempts to give each socket it's own connection.
- cblockyeeshok is a version of connectorblockyeesh which is
fully routed.
- cblock-vrs is a simple connector block board that uses paddle
cards to connect up to four sockets.
- tester-7410 is a version of the tester board that builds a
latch for the OC line using a 7410.
- pcbproto-.brd is a panelization of two copies of the tester,
connector block boards, and an experimental G888 board.
- pcbproto.brd is a newer version of the panelization, with
silkscreen scripts run.
- FlipChip.brd is still a newer version of the panelization.
- cblock is a version of the connector block board, modified
to implement four pairs of socket connections.
- tester-2 is revision 2 of the tester board.
- transducer is a messy design for a transducer for negative logic,
etc.
- transistor is another messy design for a transducer.
- smb is a surface mount transducer using FET's and whatnot.
- small is a simpler transducer using through-hole parts.
- cd4007 is yet another transducer, this time using the 4007.
- 5transistor is a transducer for positive or negative logic,
implemented with five FETs.
- 3transistor is a transducer for positive or negative logic,
implemented with three FETs and a section of an LM139 comparator.
- 32pins is a set of 32 transducers of the 3transistor variety.
- tester is the flipchip tester, revision 1 (similar to iotst).
- tester-rp is another copy of the flipchip tester, revision 1.
- diodes is an attempt to lay out diode level converters for the flipchip tester.
- Rxxx is an exploration of ideas about conversion of negative logic levels.