SAM9X75 Curiosity – Copy MPLAB® Harmony v3 Application and at91bootstrap to SD Memory Card

Last modified by Microchip on 2024/10/21 14:22

In this training, you will copy two binary images, harmony.bin (an MPLAB® Harmony v3 Software Framework application) and boot.bin (second-stage bootloader, at91bootstrap), to an SD memory card for booting on the SAM9X75-Curiosity Development Board. Once the images are copied, the SD memory card is inserted, and upon reset, the SAM9X75 will boot and run the application.

For this exercise, you will write the binaries that were created in the training topics:

Hardware

For this training, you will use the SAM9X75 Curiosity LAN Kit.

SAM9X75-Curiosity Development Board

Set up the SAM9X75-Curiosity as listed below to the host computer.

Jumpers

Set the jumpers to their default positions as shown in the "Default Jumper Settings" section in the "SAM9X75-Curiosity User Guide".

Power

Apply power as shown in "Input Power Options" section in the "SAM9X75-Curiosity User Guide".

Console Serial Communications

To view the target console, connect the host computer running a terminal emulation program as described on the "SAM9X75-Curiosity – Console Serial Communications" page.

Be certain that the SAM-BA^® host application has been added to the path.

Be sure to observe RomBOOT on the console. Otherwise, the SAM-BA host application cannot talk to the monitor on the target.

For more information on SAM-BA host applets, see "SAM-BA ISP - Applets" page.

SD Memory Card

The SAM9X75-Curiosity has a MultiMediaCard (MMC) or Secure Digital (SD) memory card slot (J14) that can be used for booting the system. It is connected to the SDMMC port 0 (SDMMC0) peripheral of the SAM9X75-Curiosity.

For this training, you will need an SD memory card formatted with the File Allocation Table (FAT) file system.

Ensure that no other bootable Non-Volatile Memory (NVM) on the SAM9X75-Curiosity contains a bootable image. Ensure there are no bootable images in NAND Flash (U5) or NOR Flash (U6). For information on the default boot sequence of the SAM9X75, see Section 12 – Boot Strategies in the SAM9X75 Datasheet.

Copy boot.bin to SD Memory Card

In this section, you will copy the at91bootstrap binary image, boot.bin, to an SD memory card with a FAT formatted partition.

Change directory to the location of boot.bin:

<project_directory>\at91bootstrap\build\binaries\boot.bin

Copy boot.bin to the SD memory card.

Write harmony.bin to SD Memory Card

In this section, you will copy the MPLAB Harmony v3 Software Framework application binary image, harmony.bin, to the SD memory card into the same FAT formatted partition as you copied boot.bin into.

Change the directory to the location of harmony.bin:

C:\Users\<user>\HarmonyContent\csp_apps_sam_9x7\apps\rtt\rtt_periodic_timeout\firmware\rtt_periodic_timeout_sam_9x75_Curiosity.X\dist\sam_9x75_curiosity\production

Copy harmony.bin to the SD memory card.

Run MPLAB Harmony v3 Application on the Target

Insert the SD memory card into the SD card slot (J14).

To run the application, press the nRST (Reset) (SW3) push button. Observe the RGB LED (LD1) flashes blue. You can also observe the at91bootstrap reading from the SD memory card on the console.

Console: application running

Summary

In this training, you copied the binary files harmony.bin and boot.bin to an SD memory card for booting on the SAM9X75-Curiosity and ran the application on the target.