The manual lists the following, per channel, options:
- TX Frequency
- RX Frequency
- TX PL/DPL
- RX PL/DPL
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- PTT Priority (0=disabled, Wireline, Repeater, Local)
- TOT - Wireline
- TOT - Repeater
- TOT - Local
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- Drop Out Delay
- Repeater Key
- Repeater maintain
- RX1 audio
- Station ID
- TX audio mute during data
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Repeater key and RX1 audio is a function of ANDing Squelch, Code (PL or DPL) and Aux
The version 3 and 4 codeplugs are very similar. Version 3 uses 23 bytes for channel data. Version 4 uses 24 bytes.
The codeplug resides at address 0x2000. Here is a basic map of the version 3 codeplug:
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F |
|---|
| 2000 | checksum | last word | 01 | Version | ?? | Channel size | # chans | ?? | ?? | ?? | ?? | ?? | ?? | ?? |
| 2010 | ?? | ?? | ?? | ID end +1 | Channel address-16 bytes | Channel data address | 15 | ?? | 09 | | | | ID speed |
| 2020 | ID speed | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? |
| 2030 | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? |
| 2040 | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? |
| 22E0 | ?? | ?? | ?? | ?? | ?? | CW ID | ?? | ?? | ?? | ?? | ?? |
| 22F0 | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? |
| 2300 | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? |
| 2310 | ?? | ?? | RX Frequency | TX Frequency | RX1 audio | Priority | Line TOT | Local TOT | Drop out RPT TOT | TX PL |
| 2320 | TX PL | RX PL | RX PL | ?? | RPT hold key | ID | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? |
| 2330 | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? | ?? |
Color key:
Navy - certain
Olive - uncertain
Red - no idea
Channel Data:
The MSF5000 is capable of multi-channel operation. I have not identified info on using additional channels.
Here is a byte by byte breakdown (not 100% complete)
** Note that A0 and B0 are inverted **
Receive Frequency
| A3A2A1A0 B1B0A5A4 |
A and B divisor bits for receive VCO * Note two bits are inverted * |
| B5B4B3B2 B9B8B7B6 |
Remaining B divisor bits for receive VCO |
| 1 1 C1C0 0 0 R1 R0 |
C bits for receive VCO. The bits in red are unknown. The 7th bit controls modulation compensation for DPL. No function for receive. The MSB bit forces the adaptive VCO filter, normally 1. Ref Freq: 01 - 6.25KHz, 10 - 4.167KHz, 11 - 5.0 KHz |
Transmit Frequency
| A3A2A1A0 B1B0A5A4 |
A and B divisor bits for transmit VCO |
| B5B4B3B2 B9B8B7B6 |
Remaining B divisor bits for transmit VCO |
| 1 1 C1C0 0 0 R1 R0 |
C bits and Reference freq. for transmit VCO. The red bits are unknown. The 7th bit controls VCO modulation compensation. 0 for DPL, 1 for PL. MSB forces adaptive loop filter. Normally 1. Ref Freq: 01 - 6.25KHz, 10 - 4.167KHz, 11 - 5.0KHz |
Receiver 1 Audio
| 1 C 0 S 0 0 0 0 | C=Code (PL/DPL) S=Squelch Use 0 to disable. 1's are ANDed together. I think bit 5 is for AUX. Not sure what 'AUX' is. |
PTT Priority
| 0 0 W1W0 L1L0R1R0 |
W=wireline L=local R=repeater Be sure they are not the same. 00=no function 01=highest 11=lowest priority |
Wireline TOT
| 0 0 0W4 W3W2W1W0 |
Wireline input time-out-timer. 15 second increments. 00000=disabled |
Local (Front panel Control) TOT
| 0 0 0 L4 L3 L2L1L0 |
Local (Control) input time-out-timer. 15 second increments. 00000=disabled |
Drop Out & Repeater TOT
| D2D1D0R4 R3R2R1R0 |
Dropout timer (tail) & Repeater time-out-timer. DOD is 0 (disabled)-7 seconds. TOT is 15 second increments. 00000=disabled |
Transmit Code (PL/DPL)
| P 0 T13T12 T11T10T9T8 |
Transmit Code Squelch for PL P=0, for DPL P=1 T13=1 T12=0 T11=0 T10=0 |
| T7T6T5T4 T3T2T1T0 |
T0 in DPL mode: 0=normal, 1=inverted T9 - T1 are Octal DPL code |
Receive Code (PL/DPL)
| P 0 T13T12 T11T10T9T8 |
Receive Code Squelch for PL P=0, for DPL P=1 T13=1 T12=0 T11=0 T10=0 |
| T7T6T5T4 T3T2T1T0 | T0 in DPL mode: 0=normal, 1=inverted T9 - T1 are Octal DPL code |
Codeplug is located at 0x2000. This means that an address pointing to 2308 is actually in the EPROM at 0308.
To make testing easy, change 0002:0003 to something near start of EPROM and the checksum becomes easy to calculate and you can change other bytes at will.
This data was derived from hours of experimentation using two available codeplugs.
| Address | Description |
|---|
| 0000:0001 | Checksum. Use 16 bit math and add words starting with 0002:0003 and ending with last word of code plug data. |
| 0002:0003 | Address of last word of code plug data. (used for checksum) |
| 0005 | Version |
| 0007 | Channel byte count |
| 0008 | Number of channels +1 (tune channel adds one) |
| 0011:0012 | Address of first CW ID data (same number of bytes per channel) |
| 0013:0014 | Address of byte following final callsign terminator (00) |
| 0015:0016 | Address of 16 bytes (all 01 ?)preceeding channel data |
| 0017:0018 | Address of channel data |
| 0019 | Unknown |
| 001B | Unknown |
| 001F:0020 | ID character speed |
| 02E5 | First byte of callsign. Terminate with 00. write it out in binary: 00=short space, 01=dit, 10=dah,11=long space |
| 03?? | Channel data starts in here. Starting point seems to relate to callsign length |
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