I'm investigating how to send ZPLII commands to an USB printer using a STM32F4 or F7 MCU.
So far i did some testing with USB FS Host examples. The printer is being recognized, but I'm not able to send a ZPLII string like: "^XA^FO10,10,^AO,30,20^FDFDTesting^FS^XZ";
Anybody experience with sending ZPLII commands to zebra printer via USB? Or how to send a raw string like mentioned above?