README: Fix command to make firmware BIN (#115)
Co-authored-by: atse <atse@m-labs.hk> Co-committed-by: atse <atse@m-labs.hk>
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@ -45,7 +45,7 @@ There are several options for flashing Thermostat. DFU requires only a micro-USB
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### dfu-util on Linux
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### dfu-util on Linux
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* Install the DFU USB tool (dfu-util).
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* Install the DFU USB tool (dfu-util).
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* Convert firmware from ELF to BIN: `arm-none-eabi-objcopy -O binary thermostat thermostat.bin` (you can skip this step if using the BIN from Hydra)
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* Convert firmware from ELF to BIN: `llvm-objcopy -O binary target/thumbv7em-none-eabihf/release/thermostat thermostat.bin` (you can skip this step if using the BIN from Hydra)
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* Connect to the Micro USB connector to Thermostat below the RJ45.
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* Connect to the Micro USB connector to Thermostat below the RJ45.
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* Add jumper to Thermostat v2.0 across 2-pin jumper adjacent to JTAG connector.
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* Add jumper to Thermostat v2.0 across 2-pin jumper adjacent to JTAG connector.
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* Cycle board power to put it in DFU update mode
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* Cycle board power to put it in DFU update mode
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