mplab-usb-host-msd
USB Host Mass Storage Device test code for SAME70 / SAME54 / SAMD21 dev boards
This probject implements the test application described in Create your first USB Host Application. In its own words:
The purpose of this tutorial is to show you how to create a MPLAB® Harmony 3 project that uses the MPLAB® Harmony File System to create a file on a USB Mass Storage Device (eg: USB Pen Drive). The application will provide a LED indication when the file create process has completed.
This repository contains three MPLAB.X Harmony 3 projects, one each for the SAM E70 Xplained Ultra Evaluation Kit, the SAM E54 Xplained Pro evaluation kit and the SAM D21 Xplained Pro evaluation kit. The higher level code is shared among the three projects.
Note: In order to run the examples, you will need an On The Go (OTG) USB A Female to micro-usb male adapter cable. This is not mentioned in the online tutorial. You'll also need a USB thumb drive.
Implementation Notes:
In the SAME70 project, I was getting this error:
../src/config/E70_XULT/initialization.c: In function 'DRV_USB_VBUSPowerEnable':
../src/config/E70_XULT/initialization.c:102:3: error: implicit declaration of function 'VBUS_AH_PowerEnable'; did you mean 'DRV_USB_VBUSPowerEnable'? [-Werror=implicit-function-declaration]
VBUS_AH_PowerEnable();
^~~~~~~~~~~~~~~~~~~
DRV_USB_VBUSPowerEnable
../src/config/E70_XULT/initialization.c:107:3: error: implicit declaration of function 'VBUS_AH_PowerDisable'; did you mean 'DRV_USB_VBUSPowerEnable'? [-Werror=implicit-function-declaration]
VBUS_AH_PowerDisable();
^~~~~~~~~~~~~~~~~~~~
DRV_USB_VBUSPowerEnable
nbproject/Makefile-E70_XULT.mk:427: recipe for target 'build/E70_XULT/production/_ext/44764729/initialization.o' failed
cc1.exe: all warnings being treated as errors
make[2]: *** [build/E70_XULT/production/_ext/44764729/initialization.o] Error 255
make[2]: *** Waiting for unfinished jobs....
The fix for this:
- Open Harmony Configurator for the E70_XULT project
- In the Project Graph, select the
USB High Speed Drivermodule - In the Configuration Options, expand the
USB Mode Selectionoptions - Un-check the
Generate the VBUS Enable Function - Re-generate the code and re-build the project