SPI demo w/W25Q32 chip

gpio/spi_demo/spi.c

@@ -0,0 +1,39 @@
+/*
+Demo reading from a w25q32 chip using SPI.
+*/
+
+#include <furi.h>
+#include <furi_hal.h>
+
+#define TAG "LearnSPI-SPI"
+
+static uint32_t timeout = 1000;
+static FuriHalSpiBusHandle* spi = &furi_hal_spi_bus_handle_external;
+
+void read_w25q32_spi() {
+    uint8_t command_read_memory[10] = {0x03, 0x0, 0x01, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0};
+    uint8_t data_response[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; // Extra space for NULL termination
+
+    furi_hal_spi_acquire(spi);
+
+    if(furi_hal_spi_bus_trx(spi, command_read_memory, data_response, 9, timeout)) {
+        char* data_response_str = (char*)data_response + 4;
+        FURI_LOG_E(
+            TAG,
+            "MESSAGE STORED IN CHIP AT ADDRESS 0x%02X%02X%02X IS: %s",
+            command_read_memory[1],
+            command_read_memory[2],
+            command_read_memory[3],
+            data_response_str);
+    } else {
+        FURI_LOG_E(TAG, "FAILED - read_id_spi failed.");
+    }
+
+    furi_hal_spi_release(spi);
+}
+
+void spi_demo() {
+    furi_hal_spi_bus_handle_init(spi);
+    read_w25q32_spi();
+    furi_hal_spi_bus_handle_deinit(spi);
+}