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show a single way to flash the program

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this is the recommended way
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Jorge Aparicio 2020-07-14 11:14:41 +02:00
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embedded-workshop-book/src/flashing-program.md
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# Flashing the Program
✅ Use the following command to flash the ELF file to the device.
``` console
$ cargo flash --chip nRF52840_xxAA --elf target/thumbv7em-none-eabi/debug/hello
```
> NOTE: If you run into an error along the lines of "Debug power request failed" retry the operation and the error should disappear.
Alternatively you can run this command, which builds the application before flashing it.
✅ Use the following command to flash the program to the device.
``` console
$ cargo flash --chip nRF52840_xxAA --bin hello
```
> NOTE: If you run into an error along the lines of "Debug power request failed" retry the operation and the error should disappear.
This subcommand will build the program first so you'll always flash the latest version.
The `cargo-flash` subcommand flashes and runs the program but won't display logs. It is a deployment tool.
**🔎 How does flashing work?**