I have a Teensy 4 running an application that has some settings that are read at startup. The C++ code contains those setting in the source. I would like to be able to modify the settings without having to recompile/upload the source each time. I have considered storing those settings on the EEPROM, but settled on an external micro-SD card. This allows me to place the micro-SD card into a PC and write the new default to a file, then transplant the micro-SD card to the Teensy/reader for reading. While this works, it is a bit tedious, and requires keeping a compiler/uploader system handy.
Is there a method from which I could write the settings directly to the Teensy/micro-SD card combination from the PC connected to the Teensy via USB? This would prevent having to move the SD card back and forth between the PC and the Teensy/Reader.....or might there be another method I'm overlooking for sending some data to a Teensy that is running code *while it is running* from a PC via USB without re-uploading the code?
Is there a method from which I could write the settings directly to the Teensy/micro-SD card combination from the PC connected to the Teensy via USB? This would prevent having to move the SD card back and forth between the PC and the Teensy/Reader.....or might there be another method I'm overlooking for sending some data to a Teensy that is running code *while it is running* from a PC via USB without re-uploading the code?