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@@ -123,18 +123,19 @@ Two separate buttons are supported and they can eject different drives.
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IMG1 = ...
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EjectButton = 1
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-On GD32-based ZuluSCSI models (V1.0 and V1.1), buttons are connected to J303 12-pin expansion header.
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+On ZuluSCSI V1.0 and V1.1 models, buttons are connected to J303 12-pin expansion header.
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Button 1 is connected between `PE5` and `GND`, and button 2 is connected between `PE6` and `GND`.
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Pin locations are also shown in [this image](docs/ZuluSCSI_v1_1_buttons.jpg).
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-On RP2040-based ZuluSCSI models, buttons are connected to the I2C pins.
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+On red RP2040-based ZuluSCSI models, buttons are connected to the I2C pins.
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+
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Button 1 is connected between `SDA` and `GND` and button 2 is connected between `SCL` and `GND`.
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On full-size models, the pins are available on expansion header J303 ([image](docs/ZuluSCSI_RP2040_buttons.jpg)).
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On compact model, pins are available on 4-pin I2C header J305 ([image](docs/ZuluSCSI_RP2040_compact_buttons.jpg)).
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SCSI initiator mode
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-------------------
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-The RP2040 model supports SCSI initiator mode for reading SCSI drives.
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+The full-size RP2040 and RP2040 Pico models supports SCSI initiator mode for reading SCSI drives.
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When enabled by the DIP switch, ZuluSCSI RP2040 will scan for SCSI drives on the bus and copy the data as `HDxx_imaged.hda` to the SD card.
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LED indications in initiator mode:
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Alex Perez