/* Improved demo reading from a w25q32 chip using SPI. */ #include #include #define TAG "LearnSPI-SPI-V2" static uint32_t timeout = 1000; static FuriHalSpiBusHandle* spi = &furi_hal_spi_bus_handle_external; void read_w25q32_spi_v2() { uint8_t command_read_memory[1] = {0x03}; // Read command uint8_t read_memory_address[3] = {0x00, 0x01, 0x00}; // Memory address is 0x000100 uint8_t data_response[6] = {0, 0, 0, 0, 0, 0}; // Read 5 bytes + NULL terminator. furi_hal_spi_acquire(spi); if(furi_hal_spi_bus_tx(spi, command_read_memory, 1, timeout) && furi_hal_spi_bus_tx(spi, read_memory_address, 3, timeout) && (furi_hal_spi_bus_rx(spi, data_response, 5, timeout))) { char* data_response_str = (char*)data_response; FURI_LOG_E( TAG, "MESSAGE STORED IN CHIP AT ADDRESS 0x%02X%02X%02X IS: %s", read_memory_address[0], read_memory_address[1], read_memory_address[2], data_response_str); } else { FURI_LOG_E(TAG, "FAILED - furi_hal_spi_bus_tx or furi_hal_spi_bus_rx failed."); } furi_hal_spi_release(spi); } void spi_demo_v2() { furi_hal_spi_bus_handle_init(spi); read_w25q32_spi_v2(); furi_hal_spi_bus_handle_deinit(spi); }