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Building a SWD cable| Column |
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| SWD port pinout | # | Function |
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| 1 | GND | | 2 | NONE | | 3 | IO | | 4 | CLK |
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Connect the GND, IO and CLK wires between the SWD port and the STLink dongle, the pin2 is not used. | Warning |
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| Please note the IO and CLK lines are inverted for Sparky2 board ! pin3 is CLK and pin4 is IO |
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Software setup
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For bu_* files to be flashed using GCS, see the Downloads page instead.
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| Flash Bootloader with STLink Utility
Connect and apply power - Connect the STLink dongle to a USB port.
- Connect the JST connector to the board's SWD port.
- Power the board: can be using external +5V on Output connector, or using the USB port
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- Connect the device using the
icon
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