adc_fifo_setup() function

Setup the ADC FIFO \if rp2040_specific On RP2040 the FIFO is 4 samples long. \endif \if rp2350_specific On RP2350 the FIFO is 8 samples long. \endif If a conversion is completed and the FIFO is full, the result is dropped.

Syntax

Show:

Summary

Declaration

from adc.h:223

static inline void adc_fifo_setup(bool en, bool dreq_en, uint16_t dreq_thresh, bool err_in_fifo, bool byte_shift);

Arguments

Argument

Description

Enables write each conversion result to the FIFO

dreq_en

Enable DMA requests when FIFO contains data

dreq_thresh

Threshold for DMA requests/FIFO IRQ if enabled.

err_in_fifo

If enabled, bit 15 of the FIFO contains error flag for each sample

byte_shift

Shift FIFO contents to be one byte in size (for byte DMA) - enables DMA to byte buffers.

Examples

adc_fifo_setup() is referenced by 3 libraries and example projects:

References

from examples

adc_fifo_setup() function

Syntax

Arguments

Examples

References

Call Tree

Data Use

Class Tree

Override Tree

Implementations

Instances

Lifecycle