44 lines
1.2 KiB
Markdown
44 lines
1.2 KiB
Markdown
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# 02_esp-gen-no-std
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This is an example of using ESP-IDF using no std.
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When flashed to a device, the application just adjusts the intensity of the on-board LED for visual verification that flashing works correctly.
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Steps used to generate this project
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```bash
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cargo install esp-generate
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esp-generate --chip esp32 esp-gen-no-std
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```
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You will also need to install [probe-rs](https://probe.rs/docs/getting-started/installation/)
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```bash
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curl --proto '=https' --tlsv1.2 -LsSf https://github.com/probe-rs/probe-rs/releases/latest/download/probe-rs-tools-installer.sh | sh
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```
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Steps to build and flash this project
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```bash
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# Install espflash if you don't have it already
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cargo install espflash
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# Export esp-idf build environment
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. ~/export-esp.sh
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# Build and flash to the device
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cargo build
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cargo run
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```
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If you encounter this error during the build, you need to export the esp-idf build environment with `. ~/export-esp.sh`
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```bash
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error: linker `xtensa-esp32-elf-gcc` not found
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= note: No such file or directory (os error 2)
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error: could not compile `03_esp-gen-no-std` (bin "esp-gen-test") due to 1 previous error
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```
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For more detailed information on setting up a development environment, see [the esp/rust README](/esp/rust/README.md)
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