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SourceVuESP-IDF Framework and ExamplesESP-IDFspi_slave_t::max_transfer_sz

spi_slave_t::max_transfer_sz field

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Declaration

from spi_slave.c:69

int max_transfer_sz;

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Referrer

int max_transfer_sz;

ret = spicommon_dma_desc_alloc(spihost[host]->dma_ctx, bus_config->max_transfer_sz, &spihost[host]->max_transfer_sz);

spi_slave.c:176

spi_slave_initialize()

spihost[host]->max_transfer_sz = SOC_SPI_MAXIMUM_BUFFER_SIZE;

spi_slave.c:194

spi_slave_initialize()

SPI_CHECK(trans_desc->length <= spihost[host]->max_transfer_sz * 8, "data transfer > host maximum", ESP_ERR_INVALID_ARG);

spi_slave.c:387

spi_slave_queue_trans()

ESP_RETURN_ON_FALSE_ISR(trans_desc->length <= spihost[host]->max_transfer_sz * 8, ESP_ERR_INVALID_ARG, SPI_TAG, "data transfer > host maximum");

spi_slave.c:439

spi_slave_queue_trans_isr()

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Data Use

spi_slave_t::max_transfer_sz is written by 1 function and is read by 2 functions:

spi_slave_initialize()

spi_slave_t::max_transfer_sz

spi_slave_queue_trans()

spi_slave_queue_trans_isr()

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