ADC (Analog-to-Digital Converter) interface. More...
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Typedefs | |
| typedef struct hw_adc_t | hw_adc_t |
| Opaque ADC handle. | |
| typedef bool(* | hw_adc_dma_callback_t) (hw_adc_t *adc, uint16_t *buf, size_t samples, void *userdata) |
| DMA read completion callback. More... | |
Functions | |
Lifecycle | |
| hw_adc_t * | hw_adc_init_pin (hw_gpio_t *gpio) |
| Initialize an ADC handle for a specific GPIO pin. More... | |
| hw_adc_t * | hw_adc_init_temperature (void) |
| Initialize an ADC handle for the internal temperature sensor channel. More... | |
| void | hw_adc_deinit (hw_adc_t *adc) |
| Finalize and release an ADC handle. More... | |
| uint8_t | hw_adc_count (void) |
| Get the number of external, GPIO-mappable ADC channels. More... | |
| uint8_t | hw_adc_gpio_channel (uint8_t pin) |
| Get the ADC channel number for a GPIO pin on bank 0. More... | |
| uint8_t | hw_adc_gpio_pin (uint8_t channel) |
| Get the GPIO pin number for an ADC channel. More... | |
Methods | |
| uint16_t | hw_adc_read_12 (hw_adc_t *adc, uint16_t num_samples) |
| Read the current value from an ADC channel as a 12-bit value. More... | |
| uint16_t | hw_adc_read_16 (hw_adc_t *adc, uint16_t num_samples) |
| Read the current value from an ADC channel as a 16-bit value. More... | |
| float | hw_adc_read_voltage (hw_adc_t *adc, uint16_t num_samples) |
| Read the current value from an ADC channel as a voltage. More... | |
| float | hw_adc_read_temperature (hw_adc_t *adc, uint16_t num_samples) |
| Read the current value from an ADC channel as a temperature. More... | |
| bool | hw_adc_read_dma (hw_adc_t *adc, uint16_t *buf, size_t samples, size_t partitions, uint32_t freq, hw_adc_dma_callback_t callback, void *userdata) |
| Start an asynchronous, DMA-driven read of raw samples. More... | |
Detailed Description
ADC (Analog-to-Digital Converter) interface.
Definition in file adc.h.