Adapter for the SIO port to connect peripheral devices of the 8-bit Atari to the MiSTer FPGA.
The following modules can be used to build an adapter without using SMD components:
- AMS 1117 3.3V stabiliser module
- 2 x 4ch level shifter module
- USB 3.0 Type A angled socket
- SIO socket
For basic functionality, one level shifter (mounted on J5/J6) and an LDO power supply module (mounted on J7/J8) are sufficient.
The MOTOR CTRL circuit for controlling the tape recorder is optional.
To connect to MisterFPGA, you need a USB3.0 A data transfer cable (blue type A plugs on both sides).
The adapter can ONLY be connected to the User Port on the I/O daughter board.
The prototype was tested with the following equipment:
- Atari 1050 Floppy disk drive
- FujiNet network adapter
- SDriveMAX drive emulator
1.2
- fix: crossed lines from USB3 A-A cable
1.1
- prototype / not published
- 2 * 4ch level shifters modules instead of HW221
1.0
- initial project
Please consider supporting my open projects and order PCBs here: https://www.pcbway.com/project/shareproject/MiSTer_A8SIO_a2581e8f.html
New SIO sockets can be purchased here: http://sikorsoft.waw.pl/hardware/gniazda-sio/
3D printed SIO socket project: https://www.thingiverse.com/thing:5176832