40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
/*
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Demo reading from a w25q32 chip using SPI.
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*/
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#include <furi.h>
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#include <furi_hal.h>
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#define TAG "LearnSPI-SPI"
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static uint32_t timeout = 1000;
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static FuriHalSpiBusHandle* spi = &furi_hal_spi_bus_handle_external;
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void read_w25q32_spi() {
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uint8_t command_read_memory[10] = {0x03, 0x0, 0x01, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0};
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uint8_t data_response[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; // Extra space for NULL termination
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furi_hal_spi_acquire(spi);
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if(furi_hal_spi_bus_trx(spi, command_read_memory, data_response, 9, timeout)) {
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char* data_response_str = (char*)data_response + 4;
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FURI_LOG_E(
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TAG,
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"MESSAGE STORED IN CHIP AT ADDRESS 0x%02X%02X%02X IS: %s",
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command_read_memory[1],
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command_read_memory[2],
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command_read_memory[3],
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data_response_str);
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} else {
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FURI_LOG_E(TAG, "FAILED - furi_hal_spi_bus_trx failed.");
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}
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furi_hal_spi_release(spi);
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}
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void spi_demo() {
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furi_hal_spi_bus_handle_init(spi);
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read_w25q32_spi();
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furi_hal_spi_bus_handle_deinit(spi);
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}
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