adding spi flash info example

Adding spi flash info example to use SPI pins for breakout

Author: BlitzCityDIY

SPI_Breakout_Flash_Info/SPI_Breakout_Flash_Info.ino

@@ -0,0 +1,92 @@
+// SPDX-FileCopyrightText: 2019 Ha Thach for Adafruit Industries
+//
+// SPDX-License-Identifier: MIT
+
+// The MIT License (MIT)
+// Copyright (c) 2019 Ha Thach for Adafruit Industries
+
+#include <SPI.h>
+#include <SdFat.h>
+
+#include <Adafruit_SPIFlash.h>
+
+#define CS_PIN 10
+
+Adafruit_FlashTransport_SPI flashTransport(CS_PIN, SPI);
+Adafruit_SPIFlash flash(&flashTransport);
+
+/*  If you want to use a specific flash device, for example for a custom built
+ board, first look for it in Adafruit_SPIFlash\src\flash_devices.h
+ *  If it isn't in there you need to create your own definition like the
+ W25Q80DLX_EXAMPLE example below.
+ *  These definitions need to be edited to match information on the data sheet
+ of the flash device that you want to use.
+ *  If you are not sure what the manufacture ID, memory type and capacity values
+ should be, try running the sketch anyway and look at the serial output
+ *  The flash device will report these values to you as a single hexadecimal
+ value (the JDEC ID)
+ *  For example, the first device on the list - the W25Q80DLX - will report its
+ JDEC ID as 0xef4014, which is made of these three values:
+ *  manufacturer_id = 0xef
+ *  memory_type     = 0x40
+ *  capacity        = 0x14
+ *  With this macro properly defined you can then create an array of device
+ definitions as shown below, this can include any from the list of devices in
+ flash_devices.h, and any you define yourself here
+ *  You need to update the variable on line 71 to reflect the number of items in
+ the array
+ *  You also need to uncomment line 84 and comment out line 81 so this array
+ will be passed to the flash memory driver.
+ *
+ *  Example of a user defined flash memory device:
+    #define W25Q80DLX_EXAMPLE                                                \
+      {                                                                      \
+        .total_size = 1*1024*1024,                                           \
+            .start_up_time_us = 5000, .manufacturer_id = 0xef,               \
+        .memory_type = 0x40, .capacity = 0x14, .max_clock_speed_mhz = 80,    \
+        .quad_enable_bit_mask = 0x02, .has_sector_protection = false,        \
+        .supports_fast_read = true, .supports_qspi = true,                   \
+        .supports_qspi_writes = false, .write_status_register_split = false, \
+        .single_status_byte = false, .is_fram = false,                       \
+      }
+ */
+
+/*
+ * Create an array of data structures and fill it with the settings we defined
+ * above. We are using two devices, but more can be added if you want.
+ */
+// static const SPIFlash_Device_t my_flash_devices[] = {
+//     W25Q80DLX_EXAMPLE,
+// };
+/*
+ * Specify the number of different devices that are listed in the array we just
+ * created. If you add more devices to the array, update this value to match.
+ */
+// const int flashDevices = 1;
+
+// the setup function runs once when you press reset or power the board
+void setup() {
+  Serial.begin(115200);
+  while (!Serial) {
+    delay(100); // wait for native usb
+  }
+
+  Serial.println("Adafruit Serial Flash Info example");
+  flash.begin();
+
+  // Using a flash device not already listed? Start the flash memory by passing
+  // it the array of device settings defined above, and the number of elements
+  // in the array.
+
+  // flash.begin(my_flash_devices, flashDevices);
+
+  Serial.print("JEDEC ID: 0x");
+  Serial.println(flash.getJEDECID(), HEX);
+  Serial.print("Flash size: ");
+  Serial.print(flash.size() / 1024);
+  Serial.println(" KB");
+}
+
+void loop() {
+  // nothing to do
+}