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* Add ADC example for STM32F411 * Update dependencies * Update RTIC version * example: f411-adc: prefer text over picture * example: f411-adc: nit: typo --------- Co-authored-by: Milton Eduardo Sosa <milton@Miltons-MacBook-Pro.local> Co-authored-by: Henrik Tjäder <henrik@tjaders.com>
36 lines
1.2 KiB
Markdown
36 lines
1.2 KiB
Markdown
# STM32F411CEU6 ADC example
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Working example to work with the internal ADC of the STM32F411CEU6 present on a Blackpill board.
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The `#init` task configures the ADC module for single-shot conversion and `PA1` as analog pin.
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Afterwards, the analog pin stored in a Potentiometer struct is set as a **local** resource to the hardware task associated to `EXTI0`.
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The `Adc<ADC1>` instance on the other hand, is set as a **shared** resource. The reason behind this approach is to allow other tasks make use of the only ADC module present on this microcontroller.
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## How-to
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### Build
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Run `cargo build --release` to compile the code. If you run it for the first time, it will take some time to download and compile dependencies.
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### Run
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Install `probe-rs` and configure it using the [debugging extension for VScode](https://probe.rs/docs/tools/debugger/).
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The output should look like this:
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```
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INFO Current delay value 1900
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INFO Current ADC value 665
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INFO Current delay value 1800
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INFO Current ADC value 1138
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INFO Current delay value 1700
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INFO Current ADC value 1136
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INFO Current delay value 1600
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INFO Current ADC value 811
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INFO Current delay value 1500
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INFO Current ADC value 1752
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```
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