ProDOS ROM-Drive v4
This is a peripheral card for the Apple ][ series computers that acts as a read-only solid state disk drive (SSD) all in EPROM. Although it won't run DOS, it is fully ProDOS compatible and will appear as a read-only hard drive even when booting from another drive. It holds 1024 KB of disk data making a full megabyte. The firmware for the card resides in block 0001 that is normally reserved for SOS boot on Apple ///. The drive boots ProDOS and into BASIC in under 1.5 seconds. This is the fourth and latest revision of the board with 4 more blocks than versions 1 through 2.5 and fixes a data buffer issue in versions 2.1, 2.5 and 3.0.
ProDOS ROM-Drive v4
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
Raspberry Pi 5 7 Inch Touch Screen IPS 1024x600 HD LCD HDMI-compatible Display for RPI 4B 3B+ OPI 5 AIDA64 PC Secondary Screen（Without Speaker）
BUY NOW
ESP32-S3 4.3inch Capacitive Touch Display Development Board, 800×480, 5-point Touch, 32-bit LX7 Dual-core Processor
BUY NOW
Raspberry Pi 5 7 Inch Touch Screen IPS 1024x600 HD LCD HDMI-compatible Display for RPI 4B 3B+ OPI 5 AIDA64 PC Secondary Screen（Without Speaker）
BUY NOW
- Comments(4)
- Likes(10)
More by Terence Boldt
-
Apple2-IO-RPi v7
Apple2-IO-RPi v7PurposeThe purpose of this project is to provide I/O for an Apple II series 8 bit co...
-
ProDOS ROM-Drive v4
This is a peripheral card for the Apple ][ series computers that acts as a read-only solid state dis...
-
Apple2-IO-RPi v6
PurposeThe purpose of this project is to provide I/O for an Apple II series 8 bit computer via a Ras...
-
ProDOS ROM-Drive v3 -- REPLACED with v4
UPDATE: v2.1, v2.5 and v3.0 have a data bus error causing occasional read failures. This is fixed in...
-
Apple2-IO-RPi v5
Update: There is a v6 but the only difference is a jumper to select internal (Apple expansion bus) v...
-
Modifying a Hotplate to a Reflow Solder Station
136 0 1 -
MPL3115A2 Barometric Pressure, Altitude, and Temperature Sensor
105 0 1 -
-
-
V2 Commodore AMIGA USB-C Power Sink Delivery High Efficiency Supply Triple Output 5V ±12V OLED display ATARI compatible shark 100W
344 4 1 -
How to measure weight with Load Cell and HX711
411 0 3 -
-
Instrumentation Input, high impedance with 16 bit 1MSPS ADC for SPI
523 0 0
Yes, that is correct
Thanks, it works great :)