At the moment i’m working on reading disks at flux level in the supercard pro format (.scp). Reading works, displaying needs some tuning, writing isn’t implemented yet.
Fixed a bug in the autoformat function, it should work now 😉
You can find Version 1.021 in the download section.
Fixed a mistake in the download section, the Firmware 1.020 was linked to the wrong file. Now it should be fixed.
I updated the ADF-Copy App to work with Mac OSX.
Thanks for the help @ Chris
You can find it in the Download Section.
I did a short explantion for the graph that shows in the App when reading a disk.
Updated App Version in the download section.
Only some bugfixes for running with OpenJDK, when you are using Oracle Java there is no need to update.
I added the option to erase a complete disk, this will fill the entire disk with 4µs (2µs for HD media) flux transitions. The is also an option to pre erase while writing an image or formatting a disk. This helps when overwriting older or non-amiga formatted disks. Also all write operations should perform faster now.
This new version requires the latest ADF-Drive firmware.
You can find both in the Download section.
Just Bugfixes to make it compatible to OpenJDK. No other changes, if you use Oracle Java there is no need to update.
New Version available, some new features.
I updated the Interface of the Frontend Application to be more logical and impleted some new features:
- Compare – reads the disk in the drive and compares it to an adf-file on your harddrive.
- Format – formats the disk in the drive in OFS, quickformat is available
- AutoFormat – does the same, but like autorip it prompts you to change the disk and continues formating disks until you hit Abort.
- Diskinfo – reads the Boot & Rootblock and displays infos and the used blocks bitmap
- Settings – allows you to edit the timing parameters of adf-drive to compensate for problems with older drives. requires some knowledge about floppy drives, but you can always restore to default settings.
All-in-One Version for Windows (XP, Vista, 7, 8, 10), Linux, Raspberry Pi
– more detailed diskinfo and used blocks
– format disk, format several disks
– changing drive timings for larger compatibility woth older drives, mtp mode on/off, number of retries and saving them to EEPROM
– compare disk to adf file.
– graphical overhaul of interface
– bugfixes of v1.001
The new Frontend requires a new firmware so make sure you update your firmware too.
Updated firmware with new features
– Saving settings in EEPROM, timings for the drive can be adjusted and saved.
– Several bugfixed and new functions for the updated frontend.
– This firmware works with ADF-Copy PCB v3 & v4 and the breadboard layout.
I bought some old DRAM Chips from Ebay for the repair of an Amiga, so i looked for a way to test those chips to know if they are in working order before putting them in the board. There are some chip testers available on the market but i thought i could build one myself and maybe use it for testing other kinds of chips later by expanding on the code.
So here is my first try on a chip tester for TMS4464 / NEC 41464 and other compatible chips, those are 64k x 4 Bit organised, DIL18 case. I had some Teensy 3.2 and a 24 pin ZIF Socket in my storage, so i did a quick layout and etched a pcb. The schematic is quite simple, each connection of the ZIF Socket is connected to some header pins and the GPIOs of a Teensy 3.2 (since the Teensy is 5V tolerant), additionally i added 3 pins with GND, 5V and 3,3V to supply power to the chip with some jumper wires. Since i wanted it as versatile as possible you have to use the jumpers, but be carefull, the Ram chips have GND and VCC exchanged compared to 74xx TTL Chips. I recommend reading the datasheet of a chip before connecting it. Sadly i had no easy accessible GPIOs left to make the powersupply for the chip switchable in software, so i always have to power down the teensy to change chips, nobody is perfect. 🙂
And yes, that is a 7404 in the picture, i tried my pcb on a cheap chip first before trying on out of production drams.
Have fun! Please leave a comment if you build one yourself, have suggestions or improvements on the source.