add documentation for MCU16GITHUB-942

Author: davidflowers

secure_boot_and_secure_firmware_upgrade_over_canfd/hex_files/README.md

@@ -1,6 +1,6 @@
 <picture>
-    <source media="(prefers-color-scheme: dark)" srcset="../images/microchip_logo_white_red.png">
-	<source media="(prefers-color-scheme: light)" srcset="../images/microchip_logo_black_red.png">
+    <source media="(prefers-color-scheme: dark)" srcset="./images/microchip_logo_white_red.png">
+	<source media="(prefers-color-scheme: light)" srcset="./images/microchip_logo_black_red.png">
     <img alt="Microchip Logo." src="../images/microchip_logo_black_red.png">
 </picture>
 
@@ -12,7 +12,25 @@ This folder contains precompiled .hex files for the demo bootloader and applicat
 **NOTE** - Only the bootloader project has code that requires an NDA.  The application .hex file can be compiled as is and is provided out of convenience.
 
 ## Programming the Bootloader from the Precompiled .hex File
-TBD
+1. Connect the dsPIC33C Touch CAN LIN Curiosity Development Board to the PC via the USB micro-B port.
+2. Open the MPLAB X IPE program.
+3. Enter the dsPIC33CK1024MP710 in the "Device" selector.<br>
+![Select the correct device](./images/select_device.png)<br>
+4. Select the "Curiosity/Starter kits" option from the "Tools" dropdown.<br>
+![Select the curiosity board](./images/connect_tool.png)<br>
+5. From the menu, select "Settings -> Advanced Mode"<br>
+![Enable advanced mode](./images/advanced_mode.png)<br>
+6. Enter the IPE password.  The default password is "microchip" if a new password has not been selected yet. <br>
+![Password to enable advanced mode](./images/password.png)<br>
+7. From the menu, select "Settings -> Release from Reset".  This will allow the programmer to release the device from reset after a programming is complete and allow the device to run the new code.<br>
+![Release from reset](./images/release_reset.png)<br>
+8. From the menu, select "File -> Import -> Hex".  Select the following file: `/secure_boot_and_secure_firmware_upgrade_over_canfd/hex_files/boot.X.production.hex`.<br>
+![Import hex file](./images/import_hex.png)<br>
+9. Click the "Connect" button.<br>
+![Connect the tool](./images/connect_tool.png)<br>
+10. Once the connection is complete, press the "Program".<br>
+![Program flash](./images/program.png)<br>
+11. When programming is complete, the bootloader should now be operational.  You can continue to use the bootloader using the `README.md` documentation found in the boot.X folder that is one level higher in this directory structure.
 
 ## Loading and Running the Application
-Use the README.md file in the top-level folder of the demo for the full instructions of the how to load the application using the bootloader.  When prompted to load a .hex file, load the application file located here.
+Use the `README.md` file in the top-level folder of the demo for the full instructions of the how to load the application using the bootloader.  When prompted to load a .hex file, you can choose to load the application file located here instead of compiling the application project and using the resulting .hex file.