I am running Windows 10 Home 64 bit and LabVIEW 32. I am using VISA serial to send parameters to a microcontroller (AdaFruit Itsy Bitsy M4 Express). I have worked with serial instruments but this is the first time I have tried to write instrument control and I am stuck.
I do not understand why characters I write to the port come back in the read and the device response remains in the port. I do not understand how to send ASCII "CONTROL-D" to soft reset the hardware. I tried 0x04 with no success. The communication is ASCII based and is flawless in a terminal emulator ( PuTTY). I want my LabVIEW re-entrant VI to work that well. A screenshot of a PuTTY session is attached.
I have read and implemented several useful posts in the forum to get as far as I am. The zip file includes details for packet and requests during sessions with my VI and PuTTY.