2019-11-10 19:48:24 +01:00
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# IOC
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## Firmware
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### General
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* All serial links run at 19200 baud
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### Bootloader
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* The bootloader is a standard Arduino bootloader with the following additions
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2019-11-11 16:46:59 +01:00
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* Use ASCII command 'X' to enable byass mode. Everything received on UART RX will be forwarded to UART TX until the next reset.
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* Use ASCII command 'Y' to set the next unit in the chain into bypass mode.
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2019-11-10 19:48:24 +01:00
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* Use ASCII command 'Z' to immediately launch into the user firmware
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* Use the following avrdude command to program: `avrdude -p m8 -P /dev/ttyUSBx -c arduino -b 19200 -U flash:w:$(TARGET).hex`
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