Hardware
Circuit diagram and PCB
Circuit diagram and PCB in Eagle format (Eagle can be obtained from this page)
Version 1
| Circuit | PCB |
|---|---|
|
|
| sio2sd.sch | sio2sd.brd |
Version 1 (SMD version made by Wolfram Fischer)
| Circuit | PCB |
|---|---|
|
|
| sio2sd.sch | sio2sd.brd |
Version 2
| Circuit | PCB |
|---|---|
|
|
| sio2sd.sch | sio2sd.brd |
Photos
| Prototype | Version 1 | Version 2 |
|---|---|---|
|
|
|
Connecting PCB to SIO
| SIO2SD pin | ATARI SIO pin | description |
|---|---|---|
| 1 | 10 | +5V |
| 2 | 4 | GND |
| 3 | 7 | COMMAND |
| 4 | 3 | DATA IN |
| 5 | 5 | DATA OUT |
AVR fuse bits
- for version 1.x: (H:0xD1 ; L:0x3F)
- for version 2.x and 3.x: (H:0xC3 ; L:0x3F)
Purchase
You can purchase assembled, ready to use device here