Diskussion:Nova 35

Aus FabLab Region Nürnberg

Hardware

RDC6442G 4-axis Lasercontrol
Breakout Board

Protokollanalyse

  1. Capture mit Wireshark
  2. Datei > Paketdissektion exportieren > Als JSON
    • Packet summary line
      • Include column headings
    • Packet details:
      • As displayed
    • Packet Bytes
  3. some more pat foo

rdcam.py

pat magic

Data format

Byte = 1 Bit Message Start Indicator + 7 Bit Payload

Checksum

2 Bytes consisting of 1 byte log2(length of message) and 1 byte sum of scrambled message bytes only least significant byte.

Checksum has to be send before sending message.

Values

Value Lenght Description
ABSCOORD 5 Bytes absolute position in µm
SPEED 5 Bytes speed in µm/s
POWER 2 Bytes power in 0,006103516% (100/2^14)

Commands

Byte squence Description how sure we are
C6 01 POWER 1st laser source min power 99%
C6 21 POWER 2st laser source min power 99%
C6 02 POWER 1st laser source max power 99%
C6 22 POWER 2st laser source max power 99%
C9 02 SPEED movement and/or (not sure) cutting speed 80%
D9 00 02 ABSCOORD move X 99%
D9 00 03 ABSCOORD move Y 50%
D9 00 04 ABSCOORD move Z 50%
D9 00 05 ABSCOORD move U 50%
CC ACK from machine 90%
DA.... get data from machine 99%
A8 ABSCOORD ABSCOORD Straight cut to absolute X Y; turn laser on with configured speed and power
E7 50 ABSCOORD ABSCOORD
E7 51 ABSCOORD ABSCOORD