Hello,
Is there a way to change the LPCOMP reference level in Zephyr other than what is set in the devicetree overlay?
I'm happy to disable it, change it and re-enable it if that's what's needed I just can't see how that can be done through Zephyr.
Example code I currently have is basic, in premise the change I'd like is to go from reference VDD_4_8 to VDD_3_8 when the first reference is passed/a callback is triggered.
Here's the basic code I already have, thank you -
#include <zephyr/drivers/comparator.h>
#include <zephyr/drivers/gpio.h>
#include <zephyr/kernel.h>
#include <zephyr/pm/device_runtime.h>
static const struct device *test_dev = DEVICE_DT_GET(DT_ALIAS(test_comp));
static const struct gpio_dt_spec test_pin = GPIO_DT_SPEC_GET(DT_PATH(zephyr_user), test_gpios);
volatile int counter;
static void test_callback(const struct device *dev, void *user_data)
{
counter++;
printk("Comparator triggered, counter=%d\n", counter);
}
void main(void)
{
int rc;
pm_device_runtime_enable(test_dev);
pm_device_runtime_get(test_dev);
rc = comparator_set_trigger_callback(test_dev, test_callback, NULL);
__ASSERT_NO_MSG(rc == 0);
rc = comparator_set_trigger(test_dev, COMPARATOR_TRIGGER_FALLING_EDGE);
__ASSERT_NO_MSG(rc == 0);
counter = 0;
while (1) {
__WFE(); // Wait for event (comparator interrupt)
}
}
