Setup

See here to determine the ID of the PUART COM Port.

Issue Query Firmware API Command

Use the “system_query_firmware_version” /qfv or “system_reboot” /rbt commands to determine the EZ-Serial Firmware Revision. Both commands are illustrated below using a terminal program connected to the PUART.

/qfv
@R,002C,/QFV,0000,E=01040C0C,S=03010000,P=0104,H=F1

The E field is the EZ-Serial Firmware Revision. In this case it is 01040C0C in hex. This equates to 1.4.12.12

/rbt
@R,000A,/RBT,0000
@E,0076,BOOT,E=01040C0C,S=03010000,P=0104,H=F1,C=00,A=FF247F484E50,F=EZ-Serial-VELA_IF820_INT V1.4.12.12 Sep 11 2023 10:17:21

The F field is the EZ-Serial Firmware Revision string. This is a more friendly representation of the firmware version.