acsi2stm-alt-hardware

Alternate PCB designs for the acsi2stm using a DB-19 or and IDC-20 connector. Both boards use all through hole design components for easy self builds.

• db19: contains the EasyEDA schematics, schematic pdf, and PCB layout for the DB-19 board

• idc20: contains the EasyEDA schmeatics, schematic pdf, and PCB layout for the IDC-20 board

• gerbers: contains various standard generated PCB gerber files as zip files

• images: renders of each of the boards

Description

The db19 uses soldered in pins that plug into the Atari ST's DMA port while the idc20 uses and Ultrasatan style IDC-20 and ribbon cable to connect to the ST's DMA port. The db19 version is designed so that it does not block any of the ports on the back the ST.

These boards are designed and tested to work with the software from this project: https://github.com/retro16/acsi2stm

Versions 3.X and 4.X of acsi2stm will work with both of these boards.

The Ultrasatan style board can be found here: https://github.com/jfceklosky/idc2ribbon

Building

The gerbers can be used with mand of the various PCB manufacturers like JLCPCB, PCBWay, and others.

Links to a source for each of the major components:

Parts	Source links
SD card	https://www.amazon.com/gp/product/B08CMLG4D6/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
STM32 Blue Pill	https://www.amazon.com/gp/product/B07VKSVM21/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1
Battery Holder	https://www.digikey.com/en/products/detail/mpd-memory-protection-devices/BS-7/389447
DB19 Pins	https://www.digikey.com/en/products/detail/mill-max-manufacturing-corp/9103-0-00-80-00-00-08-0/7322902
db25 Female (cut down)	https://www.digikey.com/en/products/detail/norcomp-inc/171-025-213R001/858148
db25 Male (cut down)	https://www.digikey.com/en/products/detail/norcomp-inc/171-025-113R001/858139
100 uF Cap	https://www.amazon.com/gp/product/B096QSKNP2/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
IDC 20 Male	https://www.amazon.com/uxcell-16-Pin-Straight-Connector-Sockets/dp/B010V43ACO/ref=sr_1_4?crid=1G2HM3EDUJ1RP&keywords=idc+20+male+solder+in&qid=1689535789&s=electronics&sprefix=idc+20+male+solder+in%2Celectronics%2C99&sr=1-4}
Pin Headers 2.54 mm	https://www.amazon.com/gp/product/B07VNXL5BD/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
CR 2032	https://www.amazon.com/Amazon-Basics-Lithium-Resistant-Packaging/dp/B08J4QR18R/ref=sr_1_12?crid=3DT82X3FY3ZTL&keywords=cr+2032&qid=1689538157&s=electronics&sprefix=cr+2032%2Celectronics%2C121&sr=1-12
Round Header M/F pins 2.54 mm	https://www.amazon.com/gp/product/B07BS126FK/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1

Board Images

DB19

IDC20