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https://gitlab.com/fabinfra/fabhardware/fabreader3.git
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35 lines
653 B
C
35 lines
653 B
C
//
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// Created by Kai Jan Kriegel on 12.10.22.
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//
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#include <memory.h>
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#include <esp_err.h>
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#include "st25r3911_spi.h"
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#include "platform.h"
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spi_device_handle_t pSpi;
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#define SPI_BUF_LEN 32
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void st25r3911_spi_init(spi_device_handle_t spi) {
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pSpi = spi;
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}
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esp_err_t st25r3911_spiTxRx(const uint8_t *txData, uint8_t *rxData, uint16_t length) {
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if (length > SPI_BUF_LEN) {
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return ESP_FAIL;
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}
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spi_transaction_t t;
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memset(&t, 0, sizeof(t));
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t.length = length * 8;
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t.rx_buffer = rxData;
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t.tx_buffer = txData;
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esp_err_t ret = spi_device_polling_transmit(pSpi, &t);
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ESP_ERROR_CHECK(ret);
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return ret;
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}
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