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- CREATING A HARD DRIVE IMAGE FOR X68000 EMULATOR HOW TO
- CREATING A HARD DRIVE IMAGE FOR X68000 EMULATOR INSTALL
- CREATING A HARD DRIVE IMAGE FOR X68000 EMULATOR SERIAL
Male DB25Īre easy to find because they were used for parallel port cables or serial port sockets. You can build a DB19 out of a DB25 by cutting 6 pins on one side and part of the external shielding.I had strange behavior with cables longer than 10cm (4 inches). Reset is not needed as the STM32 resets itself if it stays in an inconsistent state for more than 2 seconds.GND is soldered together on the ST side.WARNING: Pinout changed in v2.0: PA8 and PA12 are swapped. Use this table to match pins on the ACSI port and the STM32: ACSI Building the ACSI cableĪCSI pin numbers, looking at the male connector pins: Note: the debug output sends data at 115200bps. Once the chip is programmed, switch the BOOT0 jumper back to 0.
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On the board itself, set the BOOT0 jumper to 1 to enable the serial flash bootloader. Connect TX to PA10, RX to PA9 and the GND pins together. Set the USB dongle to 3.3V if you have a jumper for that. Then, you will be able to upload the program to the STM32. If you have different options in the Tools menu, it may be because you don't have the correct board installed. Improvement but generates much bigger code. O2 is recommended for fastest performance, O3 does not bring any speed Note: you can use any setting in the "Optimize" menu. In the Tools menu of the Arduino interface, select the following:
CREATING A HARD DRIVE IMAGE FOR X68000 EMULATOR INSTALL
In the Tools / Manage Libraries menu of the Arduino interface, search for "SdFat" and install "SdFat by Bill Greiman". Works on Arduino 1.8.5 but that does seems to work with more recent versions too.
CREATING A HARD DRIVE IMAGE FOR X68000 EMULATOR HOW TO
If anyone has concrete proof of misbehaving clones and information on how to spot them, feel free to contact me Variants I had and that worked: round and rectangle reset buttons, some chips marked STM32F / 103 and other marked I have many variants of the blue pill STM32, all of them work exactly the Note: some people reported problems with STM32 clones. Use the +5V or +3.3V pin to power it if you are unsure. Do NOT connect USB data lines on the STM32.(recommended) A protoboard PCB to solder all the components and wires together.A male DB19 port (you can modify a DB25 port to fit) with a ribbon cable.You can also solder wires on a SD to microSD adapter. One or more SD card port(s) for your STM32.A USB-serial dongle for programming the STM32 chip, with a 3.3V USART.The "blue pill" works out of the boxĪnd the "black pill" requires minor modifications. You can find them for a few dollars online. Expose a hard disk image file to the Atari.Expose a raw SD card as a hard disk to the Atari.ID of each SD card by soldering CS wires on the matching STM32 pin. The module supports up to 5 SD card readers, showing them as 5 different ACSI devices plugged in.
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The aim of this project is to be very easy to build, extremely cheap, reliable and safe for your precious vintage machine. This code provides a hard drive emulator for your Atari ST using an inexpensive STM32 microcontroller and a SD card. Beware, the pinout has changed since version 1.0 ACSI2STM: Atari ST ACSI hard drive emulator