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SourceVuRaspberry Pi Pico SDK and Examplesws2812 sampledma_init()

dma_init() function

Syntax

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Summary

Declaration

from ws2812_parallel.c:239

void dma_init(PIO pio, uint sm);

Arguments

Argument

pio

sm

References

Code

Location

Referrer

void dma_init(PIO pio, uint sm) {

ws2812_parallel.c:239

dma_init(pio, sm);

ws2812_parallel.c:291

Call Tree

dma_init() is called by 1 function and calls 11 functions:

dma_init()

irq_set_exclusive_handler()

irq_set_enabled()

dma_channel_set_irq0_enabled()

dma_channel_hw_addr()

channel_config_set_irq_quiet()

dma_channel_get_default_config()

channel_config_set_dreq()

channel_config_set_chain_to()

dma_channel_configure()

dma_claim_mask()

Data Use

dma_init() reads 3 variables:

irq_num_rp2350::DMA_IRQ_0

dma_complete_handler()

dma_init()

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