Is it possible to control SPI chip select pin with Zephyr GPIO API?

Question

I would like to control SPI chip selection pin. Is it possible to control SPI CS pin with Zephyr GPIO API?

RickySan · Accepted Answer

Yes, it is possible to control the SPI chip select (CS) pin with the Zephyr GPIO API. The Zephyr GPIO API provides a set of functions for configuring and controlling GPIO pins on a microcontroller. To control the CS pin of an SPI device using the GPIO API, you would need to first configure a GPIO pin as an output pin using the gpio_pin_configure() function. Once the pin is configured, you can set its value to high or low using the gpio_pin_set() or gpio_pin_clear() functions, respectively. Here's an example of how you could use the GPIO API to control the CS pin of an SPI device: Fun Games #include #include #include // Define the CS pin #define CS_PIN 10 // Configure the CS pin as an output const struct device *gpio_dev; gpio_pin_configure(gpio_dev, CS_PIN, GPIO_OUTPUT); // Set the CS pin low to select the SPI device gpio_pin_clear(gpio_dev, CS_PIN); // Perform SPI transactions here... // Set the CS pin high to deselect the SPI device gpio_pin_set(gpio_dev, CS_PIN); In this example, we first define the CS pin as CS_PIN, and then configure it as an output using the gpio_pin_configure() function. We then set the CS pin low using gpio_pin_clear() to select the SPI device and perform SPI transactions. Finally, we set the CS pin high using gpio_pin_set() to deselect the SPI device. I hope this helps!

Is it possible to control SPI chip select pin with Zephyr GPIO API?

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