c300780-001 - Atari STe Motherboard - v1.0.0.rc3

The conversion of the schematics of the Atari STe motherboard into Kicad.

You will find :

• The Kicad project, with all the required specific libraries.
• The pdf of the schematics
• The pdf of the front silk screen

Changelog :

• [PCB] All component placed except the dip version of U300, some visible routes traced.
• Moved all handmade libraries into git submodules (thus their own git repository)
• Fixed : wrong pin numbers for transistors, should be ebc, not bce
• Fixed : missing R209, pull up U200 and U201 IRQ
• [PCB][bug] fixed association for U101 and U300_PLCC
• Resolves #47 : [Schematics][PCB] Variable coil - the symbol should have a shield pin, its Footprint should name 'SH' the pins for the shields
• Resolves #48 : [Schematic][PCB] Reset button should be shielded
• Resolves #46 : [PCB] Footprints for shielded ports should have pins named 'SH'
• Resolves #45 : [Atari STE]Use shielded connectors
• Resolves #41 : [PCB] custom footprint library for passives

c300780-001 - Atari STe Motherboard - v1.0.0.rc2

The conversion of the schematics of the Atari STe motherboard into Kicad.

You will find :

• The Kicad project, with all the required specific libraries.
• The pdf of the schematics

Changelog :

• added a 'table of content' title on the main sheet
• Resolves #39 : [ERC] Create power symbols for regulated voltages
• Resolves #37 : [ERC] PADRST - pin 98 of GSTMCU should be output
• Resolves #38 : [ERC] SREQ/SLOAD - pin 36/35 of Shifter should be output/input
• Fixed : C124 is 22nF
• [PCB] : Hole code 'X'
• [PCB] Rectangular hole under the modulator
• Resolves #36 : [ERC] XBR - pin 29 of GSTMCU and pin 30 of blitter should be 3 states
• Resolves #35 : [ERC] XDTACK - pin 46 of MFP, pin 27 of blitter and pin 71 of GSTMCU should be 3 states
• [PCB] North side cuts
• [PCB] Cartridge port cut
• Resolves #34 : [ERC] DMA - most signal are 3 states or open collector
• Fixed #33 : [bug][ERC]Typo on the label wired on pin 9 of U307
• Fixed #32 : [bug][ERC] Subsheet 203 - typo for global label SD[0..7] 'O' instead of '0'
• Fixed #31 : [bug][ERC] subsheet 203 - bypass capacitors of Y200 should be connected to ground
• Resolves #30 : [ERC] Analog output of YM2149 should be open-collector
• Resolves #29 : [ERC] Pin 8 of TL497A should be passive
• Resolves #28 : [ERC] Pin 39 of U101 should be bidirectionnal
• [PCB] bottom-right cut
• [PCB] Placed reference solder mask and silkscreen
• [PCB] bounding box
• Fixed : [ERC] ambiguous labels joy* vs JOY*
• Fixed : [ERC][bug] typo JOY0_2 instead of JOY1_2
• Resolves #27 : [ERC][bug] pin 7-8 of DAC are not output
• Fixed : global label 'DE' instead of 'MCU_DE' on pin 141 of U400
• Resolves #26 : [ERC] ACIA - pin 7 is open collector
• Resolves #25 : [ERC] Eproms - data bus pins are 3 states
• Resolves #24 : [ERC] Eproms - pin30 should be input
• Resolves #23 : [ERC] Outputs of 74x245 are 3 states
• Resolves #22 : [ERC] Outputs of 74x257 are 3 states
• Resolves #21 : [ERC] Outputs of 74f374 are 3 states
• Resolves #20 : [ERC] Outputs of 74x244 are 3 states
• Added footprints of the pcb silkscreen and component side soldermask
• Fixes #19 : [ERC] AS, UDS, LDS should be 3 state for U100, U101
• Fixes #18 : [ERC] pins FC[0..2] should be 3 state for U100, U101
• Fixes #17 : [ERC] pins R/W should be 3-state for U100, U101
• Fixed : [ERC] wrong case for labels between bus and pins
• Fixed : [ERC] duplicate C519, was C519 and C518
• Fixed : [ERC] duplicate C528, was C528 and C526
• Fixed : [ERC] duplicate C432, was C432 and C423
• Fixed : [ERC] Modulator 'MOD' must have a number
• Adjust : lf347 v+ and v- are not power input, put in group 'vref'
• Resolves #15 : [Atari STE] Rework the audio circuit for better understandability
• Fixes #14 : [Atari STE] U500 and U501 are 74_F_374
• Resolves #13 : [Atari STE] Some STEs use a 74F257 for U405, might be worth a note.
• Fixes #12 : [Atari STE] R127 does not go to ground
• Fixes #11 : [Atari STE] C127 should be 68 pF
• Fixes #10 : [Atari STE] R126 should be 560 R

c300780-001 - Atari STe Motherboard - v1.0.0.rc1

The conversion of the schematics of the Atari STe motherboard into Kicad.

You will find :

• The Kicad project, with all the required specific libraries.
• The pdf of the schematics

0.0.2

Include the footprint reference, generate single unit symbols as well as multiple-unit symbols for one IC.

This release include sample libs for :

• MC6850 a.k.a ACIA
• MC68000 (DIP 64 and PLCC 68 variant)
• The Blitter of the Atari ST
• The "GSTMCU" of the Atari STE

0.0.1

First working version, able to generate the IC symbol