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BlueSCSI
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# BlueSCSI
:toc: macro
BlueSCSI & ArdSCSino are hardware that reproduces SCSI devices (hard disks) with an Arduino STM32F103C (aka Blue Pill.)
`BlueSCSI` created by [erichelgeson](https://github.com/erichelgeson) is a fork of `ArdSCSino-stm32` which adds:
`BlueSCSI` created by https://github.com/erichelgeson[erichelgeson] is a fork of `ArdSCSino-stm32` which adds:
* Mac specific functionality
* Passive SCSI termination
* An alternative power source if not able to be powered by the SCSI bus
`ArdSCSino-stm32` created by [ztto](https://github.com/ztto/ArdSCSino-stm32) is the STM32 version of `ArdSCSino`
`ArdSCSino-stm32` created by https://github.com/ztto/ArdSCSino-stm32[ztto] is the STM32 version of `ArdSCSino`
`ArdSCSino` created by https://twitter.com/h_koma2[Tambo (TNB Seisakusho)]
`ArdSCSino` created by [Tambo (TNB Seisakusho)](https://twitter.com/h_koma2)
image::docs/buynow.png[link=https://gum.co/bluescsi-1b, 150]
image::docs/discordbanner.png[https://discord.gg/GKcvtgU7P9, 150]
# Purchase a Kit or Fully Assembled
Join us in #bluescsi on https://discord.gg/GKcvtgU7P9[Discord] or open an issue on this repo.
https://gum.co/bluescsi-1b
# Questions?
Join us in #bluescsi on [Discord](https://discord.gg/GKcvtgU7P9)
Or open an issue on this repo.
toc::[]
## Compatibility
@ -33,7 +31,7 @@ SE, SE/30, Classic, Classic II, Color Classic, LC I/II/III, LC 475, LC 575
#### Reported by others
[IIcx](https://68kmla.org/forums/topic/61045-arduino-scsi-device-work-in-progress/?do=findComment&comment=663077), [PowerBook 100 (with custom adapter)](https://68kmla.org/forums/topic/61045-arduino-scsi-device-work-in-progress/?do=findComment&comment=664446)
https://68kmla.org/forums/topic/61045-arduino-scsi-device-work-in-progress/?do=findComment&comment=663077[IIcx], https://68kmla.org/forums/topic/61045-arduino-scsi-device-work-in-progress/?do=findComment&comment=664446[PowerBook 100 (with custom adapter)]
### Incompatible
@ -41,7 +39,7 @@ Plus, PowerPC (SCSI-2?)
## Performance
Tested on a Color Classic with [SCSI Director Pro 4](https://macintoshgarden.org/apps/scsi-director-pro-40)
Tested on a Color Classic with https://macintoshgarden.org/apps/scsi-director-pro-40[SCSI Director Pro 4]
```
1024KB/Sec Write
900KB/Sec Read
@ -50,7 +48,7 @@ Tested on a Color Classic with [SCSI Director Pro 4](https://macintoshgarden.org
## Assembly
See [Assembly.md](docs/assembly.md)
See <<Assembly.md,Assembly.md>>
## Usage
@ -79,12 +77,27 @@ If no image files are found PC13 will pulse on and off. Check the log file for a
### Blanks & Premade Images
Any blank raw file will do. They are easy to come by as they are used in other devices and emulators such as Basilisk II.
Any blank raw file will do. They are easy to come by as they are used in other devices and emulators such as https://www.emaculation.com/doku.php/basiliskii_osx_setup[Basilisk II].
* Blanks of various sizes from gryphel.com - https://www.gryphel.com/c/minivmac/extras/blanks/
* Premade from savagetaylor.com - https://www.savagetaylor.com/downloads/downloads-macintosh/
* Premade from RaSCSI - http://macintoshgarden.org/apps/rascsi-68kmla-edition
### Custom Disk Images
This technique is useful when you would like a disk image larger than the pre-built images in the previous section.
The following instructions demonstrates the process using https://ss64.com/osx/dd.html[dd] on a modern Mac:
1. Open terminal.
2. The following command will create a blank disk image. You can modify the command to suit your use.
* `dd if=/dev/zero of=example.hda bs=1m count=500`
* The `count` field defines the number of megabytes (`bs=1m`) the total disk image should be.
* The output file from the command is "example.hda". This can be changed in the `of=example.hda` field.
3. Place the new blank disk image in the root directory of your SD card.
4. If you do not already have a tool to format SCSI drives, https://macintoshgarden.org/apps/lido-756[download LIDO]. You can use an emulator such as https://www.emaculation.com/doku.php/basiliskii_osx_setup[Basilisk II] to move files to the image to prepare your installation.
5. After booting into your target machine with the working Mac OS disk image on your BlueSCSI from step 3, format the blank disk.
### Termination
To enable termination place the two jumpers on the TERM block. Termination should be enabled if it is the last device in the chain - which is normally how it is used.
@ -97,36 +110,20 @@ If your device is not working - check the `LOG.txt` in the root of the SD card.
### Verify you are not using a fake
How to tell if your STM32 is fake: https://github.com/keirf/Greaseweazle/wiki/STM32-Fakes
https://github.com/keirf/Greaseweazle/wiki/STM32-Fakes[How to tell if your STM32 is fake]
### Performance is slower than expected
Try a different SD card. Cheap/old SD cards can affect performance.
# Development
## Development
Below is for users who wish to edit or develop on the BluePill - normal users should not need to worry about this.
## PlatformIO
### Setup PlatformIO
Open the project in [PlatformIO](https://platformio.org/) and everything is pre-configured.
## Setup Arduino IDE (Depricated, Do Not Use)
You only need to setup the Arduino IDE if you are planning on developing and contributing to the project. Otherwise flash a provided `.bin` file.
1. Install `Arduino IDE` version `1.8.x` - https://www.arduino.cc/en/software
1. Instructions may require extra steps to allow for serial/usb access depending on your OS. Read all instructions carefully.
1. Follow these instructions _**carefully**_ as well - https://github.com/rogerclarkmelbourne/Arduino_STM32/wiki/Installation
1. **Use the 1.0.0 core** - not the master - https://github.com/rogerclarkmelbourne/Arduino_STM32/releases/tag/v1.0.0
1. Note I used the `Arduino SAM Boards (32-bits ARM) Cortext-M3)` version `1.6.12`
1. Additional Help https://sites.google.com/site/ericmklaus/projects-1/stm32f103-minimum-system-development-board/arduino-ide-for-stm32103-board
1. Some additional hints here - https://github.com/ztto/ArdSCSino-stm32/issues/5
1. If you get a warning about an unsigned binary - open the System Preferences -> Security -> allow stm32...
1. Install SdFat - Tools -> Manage Libraries -> `SdFat by Bill Greiman` version `2.0.2`
1. Make sure the correct board is selected `Generic STM32F103C series` - Copy the latest `.ino` file into a sketch and compile.
1. Flash using your preferred method.
## Flashing
When flashing you have two options:
@ -137,33 +134,33 @@ You may also flash the `.bin` file directly from STM32CubeProgrammer. If you are
### Using STLink v2 (prefered)
0. Remove SD Card
0. Make sure the STLink is up to date - [Latest Firmware](https://my.st.com/content/my_st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/stsw-link007.license=1610785194992.product=STSW-LINK007.version=2.37.26.html)
1. Connect pins `SWDIO`(2), `GND`(4), `SWCLK`(6), and `3.3v`(8) from the programmer to the Blue Pill. NOTE: These are not the same as Serial ports.
1. Using Arduino Studio Select Tools -> Upload Method -> STLink.
1. You should see the LED PC_13 flashing indicating no SD Card detected.
1. Insert SD Card, boot on your favorite Mac!
1. Remove SD Card
2. Make sure the STLink is up to date - https://my.st.com/content/my_st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/stsw-link007.license=1610785194992.product=STSW-LINK007.version=2.37.26.html[Latest Firmware]
3. Connect pins `SWDIO`(2), `GND`(4), `SWCLK`(6), and `3.3v`(8) from the programmer to the Blue Pill. NOTE: These are not the same as Serial ports.
4. Using Arduino Studio Select Tools -> Upload Method -> STLink.
5. You should see the LED `PC_13` flashing indicating no SD Card detected.
6. Insert SD Card, boot on your favorite Mac!
#### Trouble Shooting
If the device is not detected you may need to hold reset, click program, once it is detected release reset.
If you are unable to get the device in DFU mode for programming you may need to use [STM32CubeProgrammer](https://www.st.com/en/development-tools/stm32cubeprog.html) to erase the chip.
If you are unable to get the device in DFU mode for programming you may need to use https://www.st.com/en/development-tools/stm32cubeprog.html[STM32CubeProgrammer] to erase the chip.
### Using UART Serial
I used these - but any USB->TTL device should work https://www.amazon.com/gp/product/B07D6LLX19/
0. Remove SD Card if you have one installed.
1. Set the BOOT0 jumper to 1
1. Connect to your UART flashing device via the debug pins, then connect to your computer.
1. Click the reset button on the BluePill to reset and enter programming mode.
1. In Arduino Studio click Upload
1. Remove SD Card if you have one installed.
2. Set the BOOT0 jumper to 1
3. Connect to your UART flashing device via the debug pins, then connect to your computer.
4. Click the reset button on the BluePill to reset and enter programming mode.
5. In Arduino Studio click Upload
- Note you may have to click Upload more than once, or try restarting more than once.
1. You should see the LED flashing if you have no SD Card.
1. Unplug UART device.
1. Set the BOOT0 jumper to 0
1. Insert SD Card, boot on your favorite Mac!
6. You should see the LED flashing if you have no SD Card.
7. Unplug UART device.
8. Set the BOOT0 jumper to 0
9. Insert SD Card, boot on your favorite Mac!
### Using USB HID

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