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|
| Zeile 32: |
Zeile 32: |
|
| |
|
| We didn't get the net- to work (haha) so we are using USB right now. | | We didn't get the net- to work (haha) so we are using USB right now. |
| | |
| | Someone else already documented the protocol. |
| | Apparently everything is scrambled in some way byte-wise. |
| | https://stefan.schuermans.info/rdcam/messages.html |
| | |
| | The descrambling process documented there didn't work for us. |
| | Since different versions of the program seem to use different magic numbers we decided to try to brute-force it. |
| | Turns out it's a new one: <code>0x33</code>. |
| | |
| | ==== Setup Messages [Still Scrambled] ==== |
|
| |
|
| Notation: | | Notation: |
| Zeile 39: |
Zeile 49: |
| </pre> | | </pre> |
|
| |
|
| ==== Setup Messages ====
| |
| Before sending the job to the lasercutter the driver sends and receives a few preflight messages. | | Before sending the job to the lasercutter the driver sends and receives a few preflight messages. |
| We are unsure if they change when using the Network but they are omitted when saving a job to a file. | | We are unsure if they change when using the Network but they are omitted when saving a job to a file. |
| Zeile 69: |
Zeile 78: |
| </pre> | | </pre> |
|
| |
|
| ===== Click 'Search' ===== | | ===== Click 'Search' [Still Scrambled] ===== |
|
| |
|
| <pre> | | <pre> |
| Zeile 212: |
Zeile 221: |
|
| |
|
| After this the actual job data is sent by the driver. | | After this the actual job data is sent by the driver. |
|
| |
| ==== Job Data ====
| |
| The job data seems to be structured as follows:
| |
|
| |
| 1. [Unknown Data]
| |
| * (as of now always 59 bytes)
| |
| 2. [Speed Data]
| |
| * (as of now always 8 bytes)
| |
| 3. [Power Data x4]
| |
| * (as of now always 5 bytes for each of [Min Power Laser 1, Min Power Laser 2, Max Power Laser 1, Max Power Laser 2] )
| |
| 4. [Unknown Data]
| |
|
| |
| 5. [Speed Data again, but a little different]
| |
|
| |
| 6. [Unknown Data]
| |
|
| |
| 7. [Power Data again, but a little different x4]
| |
|
| |
| 8. [Unknown Data]
| |
|
| |
| ===== 1. Unknown Data =====
| |
| 59 bytes of ???
| |
|
| |
| ===== 2. Speed Data =====
| |
|
| |
| <pre>
| |
| # Prefix (i think, not a 100% on that)
| |
| 0xfb
| |
| 0x38 (8)
| |
| 0x34 (4)
| |
| 0x34 (4)
| |
| 0x34 (4)
| |
|
| |
| # Value Bytes x3
| |
| 0x36 (6)
| |
| 0xc0
| |
| 0x14
| |
| </pre>
| |
|
| |
| '''50 mm/s:'''
| |
|
| |
| <pre>
| |
| 0xb2 (178) ()
| |
| 0x36 (54) (6)
| |
| 0x64 (100) (d)
| |
| </pre>
| |
|
| |
| '''100 mm/s:'''
| |
|
| |
| <pre>
| |
| 0x36 (54) (6)
| |
| 0xc0 (192) ()
| |
| 0x14 (20) (�)
| |
| </pre>
| |
|
| |
|
| |
| '''1000 mm/s:'''
| |
|
| |
| <pre>
| |
| 0x90 (144) ()
| |
| 0x38 (56) (8)
| |
| 0x74 (116) (t)
| |
| </pre>
| |
|
| |
|
| |
| ===== 3. Power Data [x4] =====
| |
|
| |
| <pre>
| |
| # Prefix
| |
| 0x75 (u) <- Always the same (message type identifier?)
| |
| 0x84 <- Laser and Min/Max Byte
| |
| 0x34 (4) <- Always the same (delimiter?)
| |
|
| |
| # Value Bytes x2
| |
| 0x16
| |
| 0x02
| |
| </pre>
| |
|
| |
| The Laser and Min/Max Byte is one of:
| |
| * <code>0x84</code> (Laser 1 MinPower)
| |
| * <code>0xf4</code> (Laser 2 MinPower)
| |
| * <code>0x02</code> (Laser 1 MaxPower)
| |
| * <code>0x72</code> (Laser 2 MaxPower)
| |
|
| |
| ''' 0% '''
| |
| <pre>
| |
| 0x34 (52) (4)
| |
| 0x24 (36) ($)
| |
| </pre>
| |
|
| |
| ''' 0.5% '''
| |
| <pre>
| |
| 0x34 (52) (4)
| |
| 0xe4 (228) ()
| |
| </pre>
| |
|
| |
| ''' 1% '''
| |
| <pre>
| |
| 0xb4 (180) ()
| |
| 0x92 (146) ()
| |
| </pre>
| |
|
| |
| ''' 5% '''
| |
| <pre>
| |
| 0x36 (54) (6)
| |
| 0x82 (130) ()
| |
| </pre>
| |
|
| |
| ''' 50% '''
| |
| <pre>
| |
| 0x8e (142) ()
| |
| 0xce (206) ()
| |
| </pre>
| |
|
| |
| ''' 100% '''
| |
| <pre>
| |
| 0xce (206) ()
| |
| 0xce (206) ()
| |
| </pre>
| |
|
| |
| ===== 4. Unknown Data =====
| |
| ???
| |
|
| |
| ===== 5. Speed Data Again =====
| |
| <pre>
| |
| # Prefix is shorter this time
| |
| < 0xfb
| |
| < 0x32 (2)
| |
| < 0x34 (4)
| |
| < 0x34 (4)
| |
|
| |
| # Value bytes are the same as above
| |
| < 0x36 (6)
| |
| < 0xc0
| |
| < 0x14
| |
| </pre>
| |
|
| |
| ===== 6. Unknown Data =====
| |
| ???
| |
|
| |
| ===== 7. Power Data Again [x4] =====
| |
|
| |
| <pre>
| |
| # Prefix
| |
| 0x75 (u) <- Always the same (message type identifier?)
| |
| 0xb4 <- Laser and Min/Max Byte
| |
| [No 0x34 byte this time.]
| |
|
| |
| # Value Bytes are the same
| |
| 0x16
| |
| 0x02
| |
| </pre>
| |
|
| |
| The Laser and Min/Max Byte is one of (last 4 bits are the same as in the first set of messages):
| |
| * <code>0xb4</code> (Laser 1 MinPower) (<code>0x84 + 0x30</code>)
| |
| * <code>0x94</code> (Laser 2 MinPower) (<code>0xf4 - 0x60</code>)
| |
| * <code>0x32</code> (Laser 1 MaxPower) (<code>0x02 + 0x30</code>)
| |
| * <code>0x12</code> (Laser 2 MaxPower) (<code>0x72 - 0x60</code>)
| |
|
| |
| Comparison with first Laser Min/Max bytes in binary:
| |
| <pre>
| |
| 1234 5678
| |
|
| |
| 1000 0100 0x84 First Laser 1 Min
| |
| 1111 0100 0xf4 First Laser 2 Min
| |
| 0000 0010 0x02 First Laser 1 Max
| |
| 0111 0010 0x72 First Laser 2 Max
| |
|
| |
| 1011 0100 0xb4 Secnd Laser 1 Min
| |
| 1001 0100 0x94 Secnd Laser 2 Min
| |
| 0011 0010 0x32 Secnd Laser 1 Max
| |
| 0001 0010 0x12 Secnd Laser 2 Max
| |
|
| |
| bit 6 == is min?
| |
| bit 7 == is max?
| |
|
| |
| </pre>
| |
|
| |
|
| === Laserfirmware === | | === Laserfirmware === |
| Nope. | | Nope. |