File transfer from PC to Teensy 4.1 SD card

[econjack]

My project uses BMP images to show antenna bearing headings on an RA8875 graphics display. The BMPs are generated on the PC and are customized for each ham operator's location. For testing purposes, I want to move multiple map BMP images to the Teensy's onboard SD card. The problem is the SD card slot is not easily accessible. (Yea, my fault.) I have to remove the board from its case, which is a job in itself, then un-mount a small CPU cooling fan to get at the SD card and then reverse the process when I'm done.

I was just wondering if someone has already written code that will read a binary file on the PC and copy it to the Teensy's SD card. I using IDE 2.1.1, Teensy 4.1, and Win10.

 

[MichaelMeissner]

One answer is to use MTP using an MTP add-on library. Here are some posts and the library:

• Thread from April on MTP: https://forum.pjrc.com/threads/72564-Display-SD-card-as-mass-storage-Teensy-4-1;
• Large thread about MTP: https://forum.pjrc.com/threads/68139-Teensyduino-File-System-Integration-including-MTP-and-MSC; (and)
• Github location of the MTP_t4 library: https://github.com/WMXZ-EU/MTP_t4.

Note, in general, you would have to push the file from the PC to the Teensy, and not have the Teensy get the file (though there may be ways to do that).

 

[econjack]

Thanks, Michael, I'll check your sources.